Ebyte E70 Series User manual

CC1310 Wireless Module
E70 Series
This manual may be modified based on product upgrade, please refer to the latest version.
All rights to interpret and modify this manual belong to Chengdu Ebyte Electronic Technology Co., Ltd.
Version
Date
Description
Issued by
1.00
2017/11/06
Initial version
Wu
1.10
2018/02/05
Model merge / rename
huaa
User Manual

CC1310 Wireless Module E70 Series User Manual
Copyright ©2012–2017, Chengdu Ebyte Electronic Technology Co., Ltd. 2/34
Brief Introduction
E70 series wireless transceiver modules, operating at 431~446.5MHz (Default: 433MHz), 861~876.5MHz (Default: 868MHz) and
900~922.5MHz (Default: 915MHz), are based on originally imported CC1310 from TI, with TTL level output, 3.3V IO port voltage.
Forward Error Correction, high coding efficiency & good correction performance. In the case of sudden interference, it can correct
the interfered data packets proactively, so that the reliability & transmission range are improved correspondingly. Without FEC, those data
packets are easily dropped. The module has the function of data encryption & compression. The data of the module transmitted over the
air features randomness. And with the rigorous encryption & decryption, data interception becomes pointless. The function of data
compression decreases the transmission time & probability of being interfered, while improving the reliability & transmission efficiency.
Model
Frequency
Transmitting power
Distance(IPX)
Packing
Antenna
E70 (433T14S2)
433M
14dBm
1500m
SMD
IPEX/Stamp
E70 (433T14S)
433M
14dBm
1500m
SMD
IPEX/Stamp
E70 (433T30S)
433M
30dBm
6000m
SMD
IPEX/Stamp
E70 (868T14S2)
868M
14dBm
1500m
SMD
IPEX
E70 (868T14S)
868M
14dBm
1500m
SMD
IPEX/Stamp
E70 (868T30S)
868M
30dBm
6000m
SMD
IPEX/Stamp
E70 (915T14S2)
915M
14dBm
1500m
SMD
IPEX
E70 (915T14S)
915M
14dBm
1500m
SMD
IPEX/Stamp
E70 (915T30S)
915M
30dBm
6000m
SMD
IPEX/Stamp

CC1310 Wireless Module E70 Series User Manual
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Contents
Brief Introduction...........................................................................................................................................................................2
1. Features.........................................................................................................................................................................................5
2. Technical Parameters................................................................................................................................................................ 6
2.1 General Parameters.........................................................................................................................................................................................6
2.2 Electrical Parameters...................................................................................................................................................................................... 6
2.2.1 Transmitting Current...................................................................................................................................................................................6
2.2.2 Receiving Current........................................................................................................................................................................................7
2.2.3 Turn-off Current..........................................................................................................................................................................................7
2.2.4 Voltage Supply............................................................................................................................................................................................ 7
2.2.5 Communication Level................................................................................................................................................................................. 8
2.3 RF Parameters.................................................................................................................................................................................................. 8
2.3.1 Transmitting Power.....................................................................................................................................................................................8
2.3.2 Receiving Sensitivity....................................................................................................................................................................................8
2.3.3 Recommended Working Frequency..........................................................................................................................................................9
2.4 Tested Parameters...........................................................................................................................................................................................9
3.Mechanical Characteristics................................................................................................................................................... 10
3.1 E70 (433T14S2)/ E70 (868T14S2)/ E70 (915T14S2)................................................................................................................................ 10
3.1.1 Dimension..................................................................................................................................................................................................10
3.1.2 Pin Definition............................................................................................................................................................................................. 10
3.2 E70 (433T14S)/ E70 (868T14S)/ E70 (915T14S)....................................................................................................................................... 11
3.2.1 Dimension..................................................................................................................................................................................................11
3.2.2 Pin Definition............................................................................................................................................................................................. 12
3.3 E70 (433T30S)/ E70 (868T30S)/ E70 (915T30S)....................................................................................................................................... 13
3.3.1 Dimension..................................................................................................................................................................................................13
3.3.2 Pin Definition............................................................................................................................................................................................. 14
4.Recommended Circuit Diagram.......................................................................................................................................... 16
4.1. E70 (433T14S2)/ E70 (868T14S2)/ E70 (915T14S2)............................................................................................................................... 16
4.2 General Circuit Diagram.............................................................................................................................................................................. 16
5.Function Description...............................................................................................................................................................17
5.1 Fixed Transmission........................................................................................................................................................................................17
5.2 Broadcast Transmission............................................................................................................................................................................... 17
5.3 Broadcast Address........................................................................................................................................................................................ 17
5.4 Monitor Address........................................................................................................................................................................................... 17
5.5 Reset................................................................................................................................................................................................................18
5.6 AUX Description............................................................................................................................................................................................ 18
5.6.1 Indication of UART Output.......................................................................................................................................................................18
5.6.2 Indication of Wireless Transmitting.........................................................................................................................................................18
5.6.3 Configuration Procedure of Module....................................................................................................................................................... 19
6.Operating Mode........................................................................................................................................................................19
6.1 Mode Switch.................................................................................................................................................................................................. 20
6.2 RSSI Mode (Mode 0).................................................................................................................................................................................... 20
6.3 Continuous Mode (Mode 1)........................................................................................................................................................................21
6.4 Sub-package Mode (Mode 2).................................................................................................................................................................... 21
6.5 Configuration Mode (Mode 3)................................................................................................................................................................... 22
6.6 Wake-up Mode (Mode 4)............................................................................................................................................................................22
6.7 Configuration Mode (Mode 5)................................................................................................................................................................... 22
6.8 Power Saving Mode (Mode 6)....................................................................................................................................................................23
6.9 Sleep Mode (Mode 7)...................................................................................................................................................................................23
7.Instruction Format................................................................................................................................................................... 23
7.1 Default Parameter.........................................................................................................................................................................................24
7.1.1. Working frequency 433MHz................................................................................................................................................................... 24
7.1.2. Working frequency 868MHz................................................................................................................................................................... 24

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7.1.3. Working frequency 915MHz................................................................................................................................................................... 24
7.2 Reading Operating Parameters.................................................................................................................................................................. 25
7.3 Reading Version Number............................................................................................................................................................................ 25
7.4 Reset Instruction........................................................................................................................................................................................... 25
7.5 Parameter Setting Instruction.................................................................................................................................................................... 25
8.Parameter Setting.................................................................................................................................................................... 27
9.Secondary Development....................................................................................................................................................... 27
9.1 E70 (433T14S2)/ E70 (868T14S2)/ E70 (915T14S2)................................................................................................................................ 28
9.1.1 Secondary Development Dimension.......................................................................................................................................................28
9.1.2 The Pin Definition......................................................................................................................................................................................28
9.2 E70 (433T14S)/ E70 (868T14S)/ E70 (915T14S)....................................................................................................................................... 29
9.2.1 Secondary Development Dimension.......................................................................................................................................................29
9.2.2 The Pin Definition......................................................................................................................................................................................29
9.3 E70 (433T30S)/ E70 (868T30S)/ E70 (915T30S)....................................................................................................................................... 30
9.3.1 Secondary Development Dimension.......................................................................................................................................................30
9.3.2 The Pin Definition......................................................................................................................................................................................30
9.4 Download Program.......................................................................................................................................................................................32
10. Production Guidance...........................................................................................................................................................32
10.1 Reflow Soldering Temperature................................................................................................................................................................ 32
10.2 Reflow Soldering Curve............................................................................................................................................................................. 33
11.FAQ.............................................................................................................................................................................................. 33
11.1 Communication range is too short..........................................................................................................................................................33
11.2 Module is easy to damage........................................................................................................................................................................ 33
12.Important Notes.....................................................................................................................................................................34
13.About Us....................................................................................................................................................................................34

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1. Features
Consumption advantage: The receiving current is 8mA, and stand by current is 2uA. Battery-powered application is available.
Fixed transmission: Module can communicate with other modules which work in different channels and addresses. It makes
networking and repeater easy. For example: module A transmits AA BB CC to module B (address: 0x00 01, channel: 0x80). The HEX
format is 00 01 80 AA BB CC (00 01 refers to the address of module B, and 80 refers to the channel of module B). Then module B
receives AA BB CC (only module B).
Broadcast transmission: To set the module address as 0xFFFF, then the module can communicate with other modules in the
same channel.
FEC: Forward Error Correction has high coding efficiency & good correction performance. In case of sudden interference, it can
correct the interfered data packets proactively, so that the reliability & transmission range are improved correspondingly. Without
FEC, those data packets can only be dropped.
Parameter saving: The parameters will be saved after setting and will not be reset when powered off. Once powered on, it will
work according to the previous parameters.
Ultra-small size: With half the size of similar modules, E70 series are suitable for applications which have strict requirement on
the size.
Secondary development: All IO ports are led out for secondary development.
Customized Service: If the existing UART modules cannot meet customers’ requirements, Ebyte can provide customized
firmware. Ebyte has provided customized solutions for many well-known enterprises.
Complete series: Ebyte has developed complete series of CC1310 modules with different size, frequency, power and packing.
CC1310 owns different packing and the main difference is the amount of GPIO.

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2. Technical Parameters
2.1 General Parameters
Model
Core IC
Size
Net weight
Operating
temperature
Operating
humidity
Storage
temperature
E70 (433T14S2)
CC1310
14 * 20 mm
2.0±0.1g
-40 ~ 85℃
10% ~ 90%
-40 ~ 125°C
E70 (433T14S)
CC1310
16 * 26 mm
1.65±0.1g
-40 ~ 85℃
10% ~ 90%
-40 ~ 125°C
E70 (433T30S)
CC1310
24 * 38.5 mm
4.9±0.1g
-40 ~ 85℃
10% ~ 90%
-40 ~ 125°C
E70 (868T14S2)
CC1310
14 * 20 mm
2.0±0.1g
-40 ~ 85℃
10% ~ 90%
-40 ~ 125°C
E70 (868T14S)
CC1310
16 * 26 mm
1.65±0.1g
-40 ~ 85℃
10% ~ 90%
-40 ~ 125°C
E70 (868T30S)
CC1310
24 * 38.5 mm
4.9±0.1g
-40 ~ 85℃
10% ~ 90%
-40 ~ 125°C
E70 (915T14S2)
CC1310
14 * 20 mm
2.0±0.1g
-40 ~ 85℃
10% ~ 90%
-40 ~ 125°C
E70 (915T14S)
CC1310
16 * 26 mm
1.65±0.1g
-40 ~ 85℃
10% ~ 90%
-40 ~ 125°C
E70 (915T30S)
CC1310
24 * 38.5 mm
4.9±0.1g
-40 ~ 85℃
10% ~ 90%
-40 ~ 125°C
2.2 Electrical Parameters
2.2.1 Transmitting Current
Model
Min
Typ
Max
Unit
Remarks
E70 (433T14S2)
33
36
40
mA
When designing current supply circuit, 30% margin is
recommended to be remained so as to ensure long-term stable
operation of the whole module;
● The current at the instant of transmitting may be high, but the total
energy consumed may be lower due to very short transmitting time;
● When using external antenna, the impedance matching degree at
different frequency points between antenna and module may
affect the transmitting current value at different levels.
E70 (433T14S)
25
27
30
mA
E70 (433T30S)
500
530
580
mA
E70 (868T14S2)
33
36
40
mA
E70 (868T14S)
25
27
30
mA
E70 (868T30S)
570
610
670
mA
E70 (915T14S2)
33
36
40
mA
E70 (915T14S)
25
27
30
mA
E70 (915T30S)
570
600
660
mA

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2.2.2 Receiving Current
Model
Min
Typ
Max
Unit
Remarks
E70 (433T14S2)
6
8
9
mA
The current consumed when the RF chip is only working at
receiving mode is called as receiving current，the tested receiving
current may be higher for some RF chips with communication
protocol or the developers have loaded their own protocol to
the whole module.
The current at pure receiving mode will be mA level, the users
have to realize µA level receiving current through firmware
development.
E70 (433T14S)
7
8
9
mA
E70 (433T30S)
13
14
15
mA
E70 (868T14S2)
6
8
9
mA
E70 (868T14S)
7
8
9
mA
E70 (868T30S)
13
14
15
mA
E70 (915T14S2)
6
8
9
mA
E70 (915T14S)
7
8
9
mA
E70 (915T30S)
13
14
15
mA
2.2.3 Turn-off Current
Model
Min
Typ
Max
Unit
Remarks
E70 (433T14S2)
1.0
1.2
2.7
µA
The turn-off current means the current consumed by CPU, RAM,
Clock and some registers which remain operating. SoC is at very
low power consumption status.
● The turn-off current is always lower than the current consumed
when the power supply source of the whole module is at no-load
status.
E70 (433T14S)
0.5
1.0
2.5
µA
E70 (433T30S)
2.0
4.0
5.5
µA
E70 (868T14S2)
1.0
1.2
2.7
µA
E70 (868T14S)
0.5
1.0
2.5
µA
E70 (868T30S)
2.0
4.0
5.5
µA
E70 (915T14S2)
1.0
1.2
2.7
µA
E70 (915T14S)
0.5
1.0
2.5
µA
E70 (915T30S)
2.0
4.0
5.5
µA
2.2.4 Voltage Supply
Model
Min
Typ
Max
Unit
Remarks
E70 (433T14S2)
2.1
3.3
3.8
V DC
● If the module stays at maximum voltage for a long time, it may be
damaged.
● The power supply pin has certain anti-surge ability, but users must
note the potential pulse higher than the maximum power supply
voltage.
● The power supply is not advisable to be below 3.0V, or the RF
parameters will be influenced at different degree.
E70 (433T14S)
2.1
3.3
3.8
V DC
E70 (433T30S)
2.6
5.0
5.5
V DC
E70 (868T14S2)
2.1
3.3
3.8
V DC
E70 (868T14S)
2.1
3.3
3.8
V DC
E70 (868T30S)
2.6
5.0
5.5
V DC
E70 (915T14S2)
2.1
3.3
3.8
V DC
E70 (915T14S)
2.1
3.3
3.8
V DC
E70 (915T30S)
2.6
5.0
5.5
V DC

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2.2.5 Communication Level
Model
Min
Typ
Max
Unit
Remarks
E70 (433T14S2)
2.1
3.3
3.8
V DC
● If the module stays at maximum communication level for a long time,
it may be damaged.
● Though there are may ways to switch communication level, but the
whole power consumption will be affected to a large extent.
E70 (433T14S)
2.1
3.3
3.8
V DC
E70 (433T30S)
2.1
3.3
3.8
V DC
E70 (868T14S2)
2.1
3.3
3.8
V DC
E70 (868T14S)
2.1
3.3
3.8
V DC
E70 (868T30S)
2.1
3.3
3.8
V DC
E70 (915T14S2)
2.1
3.3
3.8
V DC
E70 (915T14S)
2.1
3.3
3.8
V DC
E70 (915T30S)
2.1
3.3
3.8
V DC
2.3 RF Parameters
2.3.1 Transmitting Power
Model
Min
Typ
Max
Unit
Remarks
E70 (433T14S2)
13.7
14.0
14.6
dBm
●Due to the error of the materials, each LRC component has ± 0.1%
error, so error accumulation will occur since multiple LRC components
are used in the whole RF circuit, and the transmitting currents will be
different at different modules;
● The power consumption can be lowered by lowering the transmitting
power, but the efficiency of the internal PA will be decreased by
lowering transmitting power due to various reasons;
● The transmitting power will be lowered by lowering the power supply
voltage.
E70 (433T14S)
13
14
15
dBm
E70 (433T30S)
29
30
31
dBm
E70 (868T14S2)
13.7
14.0
14.6
dBm
E70 (868T14S)
13
14
15
dBm
E70 (868T30S)
29
30
31
dBm
E70 (915T14S2)
13.7
14.0
14.6
dBm
E70 (915T14S)
13
14
15
dBm
E70 (915T30S)
29
30
31
dBm
2.3.2 Receiving Sensitivity
Model
Min
Typ
Max
Unit
Remarks
E70 (433T14S2)
-106.0
-108.0
-110.0
dBm
●The sensitivity is tested at the air data rate of 2.5kbps.
● Due to the error of the materials, each LRC component has ±0.1%
error, so error accumulation will occur since multiple LRC components
are used in the whole RF circuit, and the transmitting currents will be
different at different modules;
● The receiving sensitivity will be reduced and communication range
will be shortened while increasing the air data rate.
E70 (433T14S)
-109
-110
-110
dBm
E70 (433T30S)
-109
-110
-110
dBm
E70 (868T14S2)
-106.0
-108.0
-110.0
dBm
E70 (868T14S)
-109
-110
-110
dBm
E70 (868T30S)
-109
-110
-110
dBm
E70 (915T14S2)
-106.0
-108.0
-110.0
dBm
E70 (915T14S)
-109
-110
-110
dBm
E70 (915T30S)
-109
-110
-110
dBm

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2.3.3 Recommended Working Frequency
Model
Min
Typ
Max
Unit
Remarks
E70 (433T14S2)
431.0
433.0
446.5
MHz
●To work within the recommended frequency, the RF performance of all
the parameters of module can be assured.
● It is recommended to avoid the crowded integer frequency such as
433.0MHz、868.0MHz, 915MHz etc.
E70 (433T14S)
425.0
433.0
450.5
MHz
E70 (433T30S)
425.0
433.0
450.5
MHz
E70 (868T14S2)
861.0
868.0
876.5
MHz
E70 (868T14S)
861.0
868.0
876.5
MHz
E70 (868T30S)
861.0
868.0
876.5
MHz
E70 (915T14S2)
907.0
915.0
922.5
MHz
E70 (915T14S)
907.0
915.0
922.5
MHz
E70 (915T30S)
907.0
915.0
922.5
MHz
2.4 Tested Parameters
Model
Min
Typ
Max
Unit
Remarks
E70 (433T14S2)
1350
1500
1600
m
●The external antenna used is of 2.5dBi gain and vertical polarization.
The height is 2.5 meters;
● The interval between each data packet is 2s, sending 100 packets
with 30 bytes in each packet, the range at data lose rate of lower than
5% is valid range;
● In order to obtain meaningful and reproducible results, we
conducted the tests under in clear weather with little electromagnetic
interference at suburb areas；
● Distance may be shorter with interference or obstacles.
E70 (433T14S)
1350
1500
1650
m
E70 (433T30S)
5400
6000
6600
m
E70 (868T14S2)
1400
1500
1750
m
E70 (868T14S)
1350
1500
1650
m
E70 (868T30S)
5400
6000
6600
m
E70 (915T14S2)
1400
1500
1750
m
E70 (915T14S)
1350
1500
1650
m
E70 (915T30S)
5400
6000
6600
m

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3.Mechanical Characteristics
3.1 E70 (433T14S2)/ E70 (868T14S2)/ E70 (915T14S2)
3.1.1 Dimension
3.1.2 Pin Definition
No.
Pin item
Pin direction
Application
1、2、3
GND
Ground
Ground electrode
4、5、6、7
NC
Reserved pin
Reserved, to be floated
8
GND
Power positive reference,
Power supply 2.2V ~ 3.8V DC
9、10
GND
Ground
Ground electrode
11
PA_EN
Output
Internal MCU controlled PA pin, valid in high level, （to be floated）
12
LNA_EN
Output
Internal MCU controlled LNA pin, valid in high level,（to be floated）
13
M2
Input
M2, M1, M0 together decide the 8 kinds of working modes;
An external 1k protective resistor shall be connected in series when in use.
14
RESET
Input
Reset pin, valid in low level
15
GND
Ground
Ground electrode
16
AUX
Output
It is used to indicate the operation status of module, for user to wake up the external MCU,
the module outputs low level during self-checking and initialization at power on, it can be
configured as open-drain output or pull-up output, please refer to parameter setting part. An
external 1k protective resistor shall be connected in series when in use. (can be floated)

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17
TXD
Output
TTL serial port output connecting to external RXD input pin. It can be configured as
open-drain or push-pull input, please refer to Parameter setting. An external 1k protective
resistor shall be connected in series when in use.
18
TCKC
Input
JTAG TCKC
19
TMSC
Input
JTAG TMSC
20
RXD
Input
TTL serial port input connecting to external TXD pin. It can be configured as open-drain or
high pull input, please refer to Parameter setting. An external 1k protective resistor shall be
connected in series when in use.
21
M1
Input
M2, M1, M0 together decide the 8 kinds of working modes;
An external 1k protective resistor shall be connected in series and a 1M pull-up resistor shall
be added when in use.
(Cannot be floated, but it can be grounded when not used)
22
M0
Input
M2, M1, M0 together decide the 8 kinds of working modes;
An external 1k protective resistor shall be connected in series and a 1M pull-up resistor shall
be added when in use.
(Cannot be floated, it can be grounded when not used)
23
GND
Ground
Ground electrode
24
ANT
Antenna (50Ω characteristic impedance)
3.2 E70 (433T14S)/ E70 (868T14S)/ E70 (915T14S)
3.2.1 Dimension

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3.2.2 Pin Definition
No.
Pin item
Pin direction
Application
1
GND
Ground
Ground electrode
2
ANT
Ground
Antenna (50Ω characteristic impedance)
4
NC
Reserved pin
Reserved, to be floated
5
NC
Reserved pin
Reserved, to be floated
6
LNA_EN
Output
Internal MCU controlled LNA pin, valid in high level, connect to pin 44
7
PA_EN
Output
Internal MCU controlled PA pin, valid in high level, connect to pin 45
8
NC
Reserved pin
Reserved, to be floated
9
NC
Reserved pin
Reserved, to be floated
10
NC
Reserved pin
Reserved, to be floated
11
NC
Reserved pin
Reserved, to be floated
12
NC
Reserved pin
Reserved, to be floated
13
NC
Reserved pin
Reserved, to be floated
14
NC
Reserved pin
Reserved, to be floated
15
M2
Input
M2, M1, M0 jointly decide the 8 working modes;
An external 1k protective resistor shall be connected in series when in use.
16
GND
Ground
Ground electrode
17
M1
Input
M2, M1, M0 jointly decide the 8 working modes;
An external 1k protective resistor shall be connected in series and a 1M pull-up resistor
shall be added when in use.
(Cannot be floated, it can be grounded when not used)
18
M0
Input
M2, M1, M0 jointly decide the 8 working modes;
An external 1k protective resistor shall be connected in series and a 1M pull-up resistor
shall be added when in use.
(Cannot be floated, it can be grounded when not used)
19
RXD
Input
TTL serial port input connecting to external TXD pin. It can be configured as open-drain or
high pull input, please refer to Parameter setting. An external 1k protective resistor shall be
connected in series when in use.
20
TXD
Output
TTL serial port output connecting to external RXD input pin. It can be configured as
open-drain or push-pull input, please refer to Parameter setting. An external 1k protective
resistor shall be connected in series when in use.
21
TMSC
Input
JTAG TMSC
22
TCKC
Input
JTAG TCKC
23
NC
Reserved pin
Reserved, to be floated
24
NC
Reserved pin
Reserved, to be floated
25
AUX
Output
It is used to indicate the operation status of module, for user to wake up the external MCU,
the module outputs low level during self-checking and initialization at power on, it can be
configured as open-drain output or pull-up output, please refer to parameter setting par.
An external 1k protective resistor shall be connected in series while using (can be floated)
26
VCC
-
Power positive reference,
Power supply 2.1V ~ 3.8V DC

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27
GND
Ground
Ground electrode
28
GND
Ground
Ground electrode
29
NC
Reserved pin
Reserved, to be floated
30
NC
Reserved pin
Reserved, to be floated
31
NC
Reserved pin
Reserved, to be floated
32
RESET
Input
Reset pin
33
NC
Reserved pin
Reserved, to be floated
34
NC
Reserved pin
Reserved, to be floated
35
NC
Reserved pin
Reserved, to be floated
36
NC
Reserved pin
Reserved, to be floated
37
NC
Reserved pin
Reserved, to be floated
38
NC
Reserved pin
Reserved, to be floated
39
NC
Reserved pin
Reserved, to be floated
40
NC
Reserved pin
Reserved, to be floated
41
GND
Ground
Ground electrode
42
GND
Ground
Ground electrode
3.3 E70 (433T30S)/ E70 (868T30S)/ E70 (915T30S)
3.3.1 Dimension

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3.3.2 Pin Definition
No.
Pin item
Pin direction
Application
1
GND
Ground
Ground electrode
2
GND
Ground
Ground electrode
3
GND
Ground
Ground electrode
4
NC
Reserved pin
Reserved, to be floated
5
NC
Reserved pin
Reserved, to be floated
6
NC
Reserved pin
Reserved, to be floated
7
NC
Reserved pin
Reserved, to be floated
8
NC
Reserved pin
Reserved, to be floated
9
NC
Reserved pin
Reserved, to be floated
10
NC
Reserved pin
Reserved, to be floated
11
LNA_EN
Output
Internal MCU controlled LNA pin, valid in high level, connect to pin 44
12
PA_EN
Output
Internal MCU controlled PA pin, valid in high level, connect to pin 45
13
NC
Reserved pin
Reserved, to be floated
14
NC
Reserved pin
Reserved, to be floated
15
NC
Reserved pin
Reserved, to be floated
16
M2
Input
M2, M1, M0 jointly decide the 8 working modes;
An external 1k protective resistor shall be connected in series when in use.
17
GND
Ground
Ground electrode
18
M0
Input
M2, M1, M0 jointly decide the 8 working modes;
An external 1k protective resistor shall be connected in series and a 1M pull-up resistor
shall be added when in use.
(Cannot be floated, it can be grounded when not used)
19
M1
Input
M2, M1, M0 jointly decide the 8 working modes;
An external 1k protective resistor shall be connected in series and a 1M pull-up resistor
shall be added when in use.
(Cannot be floated, it can be grounded when not used)
20
RXD
Input
TTL serial port input connecting to external TXD pin. It can be configured as open-drain or
high pull input, please refer to Parameter setting. An external 1k protective resistor shall be
connected in series when in use.
21
TXD
Output
TTL serial port output connecting to external RXD input pin. It can be configured as
open-drain or push-pull input, please refer to Parameter setting. An external 1k protective
resistor shall be connected in series when in use.
22
TCKC
Input
JTAG TCKC
23
TMSC
Input
JTAG TMSC
24
RESET
Input
Reset pin, valid in low level
25
NC
Reserved pin
Reserved, to be floated
26
NC
Reserved pin
Reserved, to be floated

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27
AUX
Output
It is used to indicate the operation status of module, for user to wake up the external MCU,
the module outputs low level during self-checking and initialization at power on, it can be
configured as open-drain output or pull-up output, please refer to parameter setting par.
An external 1k protective resistor shall be connected in series while using (can be floated)
28
VCC
-
Power positive reference,
Power supply 2.6V ~ 5.5V DC
29
VCC
-
Power positive reference,
Power supply 2.6V ~ 5.5V DC
30
GND
Ground
Ground electrode
31
GND
Ground
Ground electrode
32
NC
Reserved pin
Reserved, to be floated
33
NC
Reserved pin
Reserved, to be floated
34
NC
Reserved pin
Reserved, to be floated
35
NC
Reserved pin
Reserved, to be floated
36
NC
Reserved pin
Reserved, to be floated
37
NC
Reserved pin
Reserved, to be floated
38
NC
Reserved pin
Reserved, to be floated
39
NC
Reserved pin
Reserved, to be floated
40
NC
Reserved pin
Reserved, to be floated
41
NC
Reserved pin
Reserved, to be floated
42
NC
Reserved pin
Reserved, to be floated
43
NC
Reserved pin
Reserved, to be floated
44
LNA_EN
Input
Internal LNA pin, valid in high level, connect to pin 11
45
PA_EN
Input
Internal PA pin, valid in high level, connect to pin 12
46
GND
Ground
Ground electrode
47
GND
Ground
Ground electrode
48
ANT
-
Antenna (50Ω characteristic impedance)
All E70 series are compatible with their pins.
Real values of MCU controlled PA and LNA are as follows:
No.
PA_EN
LNA_EN
Notes
1
1
0
In transmitting
2
0
1
In receiving
3
0
0
In sleeping mode

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4.Recommended Circuit Diagram
4.1. E70 (433T14S2)/ E70 (868T14S2)/ E70 (915T14S2)
4.2 General Circuit Diagram
No.
Description（STM8L MCU）
1
The UART module is TTL level. Please connect to MCU of TTL level.
2
For some MCU working at 5VDC, it may need to add 4-10K pull-up resistor for the TXD & AUX pin.

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5.Function Description
5.1 Fixed Transmission
5.2 Broadcast Transmission
5.3 Broadcast Address
For example: Set the address of module A as 0xFFFF or 0x0000, and the channel as 0x04;
When module A is the transmitter (transparent transmission), all modules under channel 0x04 will receive the data, the purpose of
broadcast is realized.
5.4 Monitor Address
For example: Set the address of module A as 0xFFFF or 0x0000, and the channel as 0x04;
When module A is the receiver, it can receive the data sent from all modules under channel 0x04, the purpose of monitor is realized.

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5.5 Reset
No.
Description
1
When the module is powered, AUX outputs low level immediately, conducts hardware self-check and sets the operating mode
on the basis of the user parameters. During the process, the AUX keeps low level. After the process completed, the AUX outputs
high level and starts to work as per the operating mode combined by M2, M1 and M0. Therefore, the user needs to wait the AUX
rising edge as the starting point of module’s normal work.
5.6 AUX Description
5.6.1 Indication of UART Output
To wake up external MCU:
5.6.2 Indication of Wireless Transmitting
Sub-package mode: the length of the buffer is determined by the length of sub-packages. If the packet is set as
1024 bytes, the buffer is 1024 bytes too. When Aux=1, users can transmit data continuously within 1024 bytes.
Continuous mode: When Aux=1, the length of packet is unlimited.
WOR mode: When Aux=1, users can send continuous data packet within 84 bytes.
When AUX = 1, it means that all the UART data of the module have been transmitted already.

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5.6.3 Configuration Procedure of Module
Only happened when power-on resetting or exiting sleep mode.
6.Operating Mode
The table below shows the status of corresponding modes: 
Mode (0-7)
M2
M1
M0
Mode introduction
Remark
0 RSSI mode
0
0
0
UART opens. Wireless closes and
transmission is unavailable.
Module outputs RSSI value each
100ms through UART
1 Continuous mode
0
0
1
UART opens. Wireless closes and
continuous transparent transmission is
available.
Air data rate can be adjusted
automatically according to baud
rate. The baud rate must be same on
both receiver and transmitter. It is
applicable for high speed
continuous data transmission.
2 Sub-package mode
0
1
0
UART opens. Wireless closes and
sub-package transparent transmission is
available.
Air data rate and baud rate can be
adjusted separately. It is applicable
for data packet transmission.
3 Configuration mode
0
1
1
UART opens. Wireless closes and
parameter can be configured.
Baud rate is fixed as 9600 8N1.
4 WOR mode
1
0
0
UART opens. Wireless closes and
subpackage transparent transmission is
available.
Receiving is not available under this
mode. Preamble code will be added
proactively before transmission to
wake up the receiver under mode 6.
5 Configuration mode (Same
as Mode 3)
1
0
1
-
-
6 Power saving mode
1
1
0
UART closes. Wireless works at WOR
power saving mode. Multiple time grades
can be configured.
Transmission is not available under
this mode. It can be woken up by
transmitter under mode 4 to achieve
low power consumption receiving.
7 Sleep mode
1
1
1
UART closes, wireless transmitting is
available and sleep mode is on.
It can be woken up by any falling
edge of M2, M1, M0.

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6.1 Mode Switch
The user can decide the operating mode by the combination of M0, M1 and M2. The two GPIOs of MCU can be used to switch mode.
After modifying M0, M1 or M2, it will start to work in new mode 1ms later if the module is free. If there are any serial data that are
yet to finish wireless transmitting, it will start to work in new mode after the UART transmitting finished. After the module receives
the wireless data & transmits the data through serial port, it will start to work in new mode after the transmitting finished. Therefore,
the mode-switch is only valid when AUX outputs 1, otherwise it will delay.
For example, in mode 2 or mode 4, if the user inputs massive data consecutively and switches operating mode at the same time, the
mode-switch operation is invalid. New mode checking can only be started after all the user ’ s data process completed. It is
recommended to check AUX pin out status and wait 2ms after AUX outputs high level before switching the mode.
If the module switches from other modes to stand-by mode, it will work in stand-by mode only after all the remained data process
completed. The feature can be used to save power consumption. For example, when the transmitter works in mode 0, after the
external MCU transmits data “12345”, it can switch to sleep mode immediately without waiting the rising edge of the AUX pin, also
the user’s main MCU will go dormancy immediately. Then the module will transmit all the data through wireless transmission & go
dormancy 1ms later automatically, which reduces MCU working time & save power.
Likewise, this feature can be used in any mode-switch. The module will start to work in new mode within 1ms after completing
present mode task, which enables the user to omit the procedure of AUX inquiry and switch mode swiftly. For example, when
switching from transmitting mode to receiving mode, the user MCU can go dormancy before mode-switch, using external interrupt
function to get AUX change so that the mode-switch can be realized.
This operation is very flexible and efficient. It is totally designed on the basis of the user MCU’s convenience, at the same time the
work load and power consumption of the whole system has been reduced and the efficiency of whole system is largely improved.
6.2 RSSI Mode (Mode 0)
Status
M0=1 M1=0 M2=0
Transmitting
Wireless data transmission is not available
Receiving
Wireless data receiving is not available
Baud rate & air
data rate
Current baud rate
Advantage
RSSI value of one byte output every 100ms can indicate the noise value of current environment.
Disadvantage
Data transmission and receiving are not available
Applications
For monitoring environmental noise
Note
-