Ebyte E70-900T S Series User manual

E70-900TxxSx User Manuel
CC1310 868/915MHz 14/30dBm TTL SMD Wireless Module

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900TxxSx_user manual
Copyright ©2012–2023，Chengdu Ebyte Electronic Technology Co,;Ltd 1
CONTENT
DISCLAIMER ................................................................................................................................................ 3
1.OVERVIEW ................................................................................................................................................ 4
1.1 INTRODUCTION ....................................................................................................................................................................................... 4
1.2 FEATURES .................................................................................................................................................................................................4
2.SPECIFICATION AND PARAMETER ...................................................................................................... 5
2.1 LIMIT PARAMETER ..................................................................................................................................................................................5
2.2 OPERATING PARAMETER ....................................................................................................................................................................... 5
3. DIMENSION/PIN DEFINITION ................................................................................................................ 6
4 CONNECT TO MCU ................................................................................................................................. 13
5 FUNCTION DESCRIPTION ..................................................................................................................... 15
5.1 FIXED TRANSMISSION .........................................................................................................................................................................15
5.2 BROADCASTING TRANSMISSION .......................................................................................................................................................15
5.3 BROADCASTING ADDRESS ................................................................................................................................................................. 15
5.4 MONITOR ADDRESS .............................................................................................................................................................................16
5.5 RESET ..................................................................................................................................................................................................... 16
5.6 AUX DESCRIPTION ..............................................................................................................................................................................16
5.6.1 Indication of UART output ....................................................................................................................................................... 16
5.6.2 Indication of wireless transmitting .........................................................................................................................................17
5.6.3 Configuration procedure of module .......................................................................................................................................17
6. OPERATING MODE ................................................................................................................................18
6.1 MODE SWITCH ..................................................................................................................................................................................... 18
6.2 RSSI MODE (MODE 0).......................................................................................................................................................................19
6.3 CONTINUOUS MODE (MODE 1) ........................................................................................................................................................19
6.4 SUB-PACKAGE MODE (MODE 2)...................................................................................................................................................... 20
6.5 CONFIGURATION MODE (MODE 3) ..................................................................................................................................................21
6.6 WAKE-UP MODE (MODE 4) ............................................................................................................................................................... 21
6.7 CONFIGURATION MODE (MODE 5) ..................................................................................................................................................21
6.8 POWER SAVING MODE (MODE 6)....................................................................................................................................................22
6.9 SLEEP MODE (MODE 7)..................................................................................................................................................................... 22
7.INSTRUCTION FORMAT ........................................................................................................................ 22
7.1 DEFAULT PARAMETER .........................................................................................................................................................................23
7.2 READING OPERATING PARAMETERS ................................................................................................................................................23
7.3 READING VERSION NUMBER ............................................................................................................................................................ 23
7.4 RESET INSTRUCTION ...........................................................................................................................................................................23
7.5 BAND ALLOCATION INSTRUCTION ................................................................................................................................................... 24
7.6 PARAMETER SETTING INSTRUCTION ...............................................................................................................................................25
8.PARAMETER SETTING .......................................................................................................................... 27
9.SECONDARY DEVELOPMENT .............................................................................................................. 27
9.1 DOWNLOAD PROGRAM ...................................................................................................................................................................... 27
10. HARDWARE DESIGN ........................................................................................................................... 28
11 FAQ ..........................................................................................................................................................29
11.1 COMMUNICATION RANGE IS TOO SHORT ...................................................................................................................................... 29
11.2 MODULE IS EASY TO DAMAGE ........................................................................................................................................................29

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11.3 BER(BIT ERROR RATE)IS HIGH .................................................................................................................................................... 29
12.PRODUCTION GUIDANCE ................................................................................................................... 30
12.1 REFLOW SOLDERING TEMPERATURE.............................................................................................................................................30
12.2 REFLOW SOLDERING CURVE ........................................................................................................................................................... 30
13.E70 SERIES ............................................................................................................................................. 31
14. ANTENNA GUIDANCE ..........................................................................................................................31
14.1 ANTENNA RECOMMENDATION ....................................................................................................................................................... 31
15.PACKAGE FOR BATCH ORDER .......................................................................................................... 32
REVISION HISTORY .................................................................................................................................. 32
ABOUT US ................................................................................................................................................... 33

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Copyright ©2012–2023，Chengdu Ebyte Electronic Technology Co,;Ltd 3
Disclaimer
EBYTE reserves all rights to this document and the information contained herein.
Products, names, logos and designs described herein may in whole or in part be
subject to intellectual property rights. Reproduction, use, modification or disclosure to
third parties of this document or any part thereof without the express permission of
EBYTE is strictly prohibited.
The information contained herein is provided “as is” and EBYTE assumes no
liability for the use of the information. No warranty, either express or implied, is given,
including but not limited, with respect to the accuracy, correctness, reliability and
fitness for a particular purpose of the information. This document may be revised by
EBYTE at any time. For most recent documents, visit www.ebyte.com.

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1.Overview
1.1 Introduction
E70-900TxxSx wireless transceiver modules, operating at861 ～876.5，907～922.5MHz (Default: 868/915MHz), is
based on originally imported CC1310 from TI, with TTL level output, 3.3V IO port voltage,24MHz industrial
high-precision low-temperature drift crystal vibration; Ensure its industrial ability and stability.
The module features FEC (Forward Error Correction) algorithm, which ensure its 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. But without FEC, those data packets can only be
dropped.
Factory has built-in low power multifunctional wireless serial program, users can also according to the need for
secondary development.
1.2 Features
Communication distance tested is up to 1.5/6km
Maximum transmission power of 14/30dBm, software multi-level adjustable；
Support the global license-free ISM 868/915MHz band；
Support air date rate of 2.5kbps～168kbps；
Low power consumption for battery supplied applications；
Can achieve up to 115200bps continuous frame unlimited-packet length transmission
E70-900T30S Support 2.6V ~ 5.5V power supply, 5V power supply to ensure the best performance;
E70-900T14S/S2 Support 2.2 ~ 3.8V power supply, more than 3.3V power supply to ensure the best performance;
Industrial grade standard design, support -40 ~ 85 °C for working over a long time；
IPEX access point, stamp hole is optional, facilitate user secondary development, facilitate integration.
1.3 Application
Home security alarm and remote keyless entry；
Smart home and industrial sensors；
Wireless alarm security system；
Building automation solutions；
Wireless industrial-grade remote control；

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Health care products；
Advanced Meter Reading Architecture(AMI)；
Automotive industry applications.
2. Specification and parameter
2.1 Limit parameter
Main parameter
Performance
Remark
Min.
Max.
Power supply（V）
E70-900T30S
0
5.5
Voltage over 3.8V will cause permanent
damage to module
E70-900T14S/S2
0
3.8
Blocking power
（dBm）
E70-900T30S
-
30
Chances of burn is slim when modules
are used in short distance
E70-900T14S/S2
-
10
Operating temperature（℃）
-40
85
-
2.2 Operating parameter
E70-900T30S
Main parameter
Performance
Remark
Min
Typ.
Max.
Operating voltage（V）
2.2
3.3
5.5
≥3.3 V ensures output power
Communication level（V）
-
3.3
-
For 5V TTL, it may be at risk of
burning down
Operating temperature（℃）
-40
-
85
Industrial design
Operating frequency（MHz）
861
-
922.5
Support ISM band
Power
consumptio
n
Transmitting current [mA]
-
610
-
Instant power consumption
Receiving current [mA]
-
14
-
-
Turn-off current [μA]
-
4
-
Software is shut down
Max Tx power（dBm）
29.5
30
30.5
-
Receiving sensitivity（dBm）
-109
-110
-111
Air data rate is 5kbps
Air data rate（bps）
2.5k
2.5k
168k
Controlled via user’s programming
E70-900T14S/S2
Main parameter
Performance
Remark
Min
Typ.
Max.
Operating voltage（V）
2.2
3.3
3.8
≥3.3 V ensures output power

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Communication level（V）
-
3.3
-
For 5V TTL, it may be at risk of
burning down
Operating temperature（℃）
-40
-
85
Industrial design
Operating frequency（MHz）
861
-
922.5
Support ISM band
Power
consumptio
n
Transmitting current [mA]
-
36
-
Instant power consumption
Receiving current [mA]
-
8
-
-
Turn-off current [μA]
-
1.2
-
Software is shut down
Max Tx power（dBm）
13.6
14.0
15.3
-
Receiving sensitivity（dBm）
-107
-108
-109
Air data rate is 5kbps
Air data rate（bps）
2.5k
2.5k
168k
Controlled via user’s programming
Main parameter
Description
Remark
Distance for reference
1500/6000m
Test condition：clear and open area, antenna gain: 5dBi，
antenna height: 2.5m，air data rate: 2.5kbps
TX length
Transmission mode specification
See transmission mode for details
Buffer
2048Byte
-
Modulation
GFSK
-
Communication interface
UART
-
Package
SMD
-
Connector
Stamp hole
Spacing of 1.27 mm
Size
E70-900T30S
24*38.5mm
-
E70-900T14S
16*26 mm
E70-900T14S2
14*20 mm
Antenna
IPX/Stamp hole
50 ohm impedance
3. Dimension/Pin definition
E70-900T30S

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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.

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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
TMSC
Input
JTAG TMSC
23
TCKC
Input
JTAG TCKC
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
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

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E70-900T14S
No.
Pin item
Pin direction
Application
1
GND
Ground
Ground electrode
2
ANT
-
）Antenna (50Ω characteristic impedance)
3
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)

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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
1
5
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
-
voltage：2.1V ~ 3.8V DC
27
GND
Ground
Ground electrode

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28
NC
Reserved pin
Reserved, to be floated
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
E70-900T14S2
Pin No.
Pin item
Pin direction
Pin application
1、2、3
GND
Reference ground
Ground electrode
4
NC
Keep the feet
Leave unused, to be suspended
5
NC
Keep the feet
Leave unused, to be suspended

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6
NC
Keep the feet
Leave unused, to be suspended
7
NC
Keep the feet
Leave unused, to be suspended
8
VCC
-
Positive power reference，voltage range：2.2V ~ 3.8V DC
9
GND
Reference ground
Ground electrode
10
GND
Reference ground
Ground electrode
11
PA_EN
Output
External PA control output, high level effective (hoverable)
12
LNA_EN
Output
External LNA control output, high level effective (hoverable)
13
M2
Input
M2M1M0 together determines 8 working modes of the module. When
used, a 1K protection resistor is connected in series externally
14
RESET
Input
Reset pin
15
GND
Reference ground
Ground electrode
16
AUX
Output
It is used to indicate the working state of the module. The user wakes up
the external MCU and outputs the low level during the initialization of
self-check on power. It can be configured as open-drain output or push-pull
output, as shown in parameter Settings (it can be suspended).
17
TXD
Output
Can also be used as TTL serial output, connected to the external RXD input
pin; It can be configured for open drain or push-pull output. See parameter
Settings for details
18
TCKC
Input
JTAG TCKC
19
TMSC
Input
JTAG TMSC
20
RXD
Inpu
TTL serial input, connect to external TXD output pin; It can be configured
as open drain or pull up input. See parameter Settings for details
21
M1
Input
M2M1M0 combination determines 8 working modes of the module (not
suspended, if not grounded)
22
M0
Input
M2M1M0 combination determines 8 working modes of the module (not
suspended, if not grounded)
23
GND
Reference ground
Ground electrode
24
ANT
-
Antenna（50Ω characteristic impedance）
This product can achieve Pin compatibility, Pin to Pin replacement
The single-chip microcomputer control PA LNA truth value table is as follows：
PA_EN
LNA_EN
Transmitting
1
0
Receiving
0
1
Sleeping
0
0

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4 Connect to MCU
E70-900T30S
E70-900T14S
E70-900T14S2

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No.
Description（STM8L MCU）
1
The UART module is TTL level., please collect with MCU.
2
For some MCU works 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 Broadcasting transmission
5.3 Broadcasting address
For example: Set the address of module A as 0xFFFF or 0x0000, and the channel as 0x04;
When module is the transmitter (transparent transmission), all modules under channel 0x04 will receive the data, the
purpose of broadcast is realized.

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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.
5.5 Reset
When the module is powered, AUX outputs low level immediately, conducts hardware self-check and sets the
operating mode based on user’s parameters. During the process, the AUX remains low level. After the process
completed, the AUX outputs high level and starts to work as per the operating mode combined by M1 and M0.
Therefore, users need to wait the AUX rising edge as the start of module’s normal work.
5.6 AUX description
AUX Pin can be used as indication for wireless send & receive buffer and self-check.
It can indicate whether there are data that are not sent yet via wireless way, or whether all wireless data has been
sent through UART, or whether the module is still in the process of self-check initialization.
5.6.1 Indication of UART output
To wake up external MCU

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5.6.2 Indication of wireless transmitting
Buffer (empty): the internal 1024 bytes data in the buffer are written to the RFIC (Auto sub-packaging).
When AUX=1, the user can input data less than 1024 bytes continuously without overflow. Buffer (not empty):
when AUX=0, the internal 1024 bytes data in the buffer have not been written to the RFIC completely. If the user
starts to transmit data at this circumstance, it may cause overtime when the module is waiting for the user data, or
transmitting wireless sub package.
When AUX = 1, it does not mean that all the UART data of the module have been transmitted already, perhaps the
last packet of data is still in transmission.
5.6.3 Configuration procedure of module
Only happened when power-on resetting or exiting sleep mode

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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
sub-package 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.
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

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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
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6.3 Continuous Mode (Mode 1)
Status
M0=1 M1=0 M2=0