Ebyte E70-900T30S User manual

E70-900T30S User Manuel
CC1310 868/915MHz SMD Wireless Module

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co,;Ltd 1
CONTENT
1.OVERVIEW...............................................................................................................................................................3
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................................................................................................................................................9
5 FUNCTION DESCRIPTION...................................................................................................................................9
5.1 FIXED TRANSMISSION....................................................................................................................................................9
5.2 BROADCASTING TRANSMISSION..................................................................................................................................10
5.6.1 Indication of UART output.................................................................................................................................. 11
5.6.2 Indication of wireless transmitting...................................................................................................................... 11
5.6.3 Configuration procedure of module.................................................................................................................... 12
6. OPERATING MODE............................................................................................................................................ 12
6.1 MODE SWITCH............................................................................................................................................................ 13
6.2 RSSI MODE (MODE 0)................................................................................................................................................14
6.3 CONTINUOUS MODE (MODE 1)...................................................................................................................................14
6.4 SUB-PACKAGE MODE (MODE 2)................................................................................................................................. 15
6.5 CONFIGURATION MODE (MODE 3)..............................................................................................................................15
6.6 WAKE-UP MODE (MODE 4)......................................................................................................................................... 16
6.7 CONFIGURATION MODE (MODE 5)..............................................................................................................................16
6.8 POWER SAVING MODE (MODE 6)............................................................................................................................... 16
6.9 SLEEP MODE (MODE 7).............................................................................................................................................. 17
7.INSTRUCTION FORMAT.................................................................................................................................... 17
7.1 DEFAULT PARAMETER................................................................................................................................................. 17
7.2 READING OPERATING PARAMETERS............................................................................................................................18
7.3 READING VERSION NUMBER...................................................................................................................................... 18
7.4 RESET INSTRUCTION................................................................................................................................................... 18
7.5 PARAMETER SETTING INSTRUCTION........................................................................................................................18
8.PARAMETER SETTING.......................................................................................................................................20
9.SECONDARY DEVELOPMENT......................................................................................................................... 21
9.1 DOWNLOAD PROGRAM............................................................................................................................................... 21
10. HARDWARE DESIGN....................................................................................................................................... 22
11 FAQ.........................................................................................................................................................................23
11.1 COMMUNICATION RANGE IS TOO SHORT....................................................................................................................23
11.2 MODULE IS EASY TO DAMAGE.................................................................................................................................. 23
11.3 BER(BIT ERROR RATE)IS HIGH................................................................................................................................23
12.PRODUCTION GUIDANCE...............................................................................................................................24
12.1 REFLOW SOLDERING TEMPERATURE......................................................................................................................... 24
12.2 REFLOW SOLDERING CURVE......................................................................................................................................24
13.E70 SERIES........................................................................................................................................................... 25
14. ANTENNA GUIDANCE......................................................................................................................................25

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co,;Ltd 2
14.1 ANTENNA RECOMMENDATION.................................................................................................................................. 25
15.PACKAGE FOR BATCH ORDER..................................................................................................................... 26
REVISION HISTORY...............................................................................................................................................27
ABOUT US..................................................................................................................................错误！未定义书签。

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，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.

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co,;Ltd 4
1.Overview
1.1 Introduction
E70-900T30S 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 6km
Maximum transmission power of 1W, 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
Support 2.2V~5.5V power supply, power supply over 3.3V can guarantee 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；
Health care products；
Advanced Meter Reading Architecture(AMI)；
Automotive industry applications.

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co,;Ltd 5
2. Specification and parameter
2.1 Limit parameter
Main parameter
Performance
Remark
Min.
Max.
Power supply（V）
0
5.5
Voltage over 3.8V will cause permanent
damage to module
Blocking power（dBm）
-
10
Chances of burn is slim when modules
are used in short distance
Operating temperature（℃）
-40
85
-
2.2 Operating parameter
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
Main parameter
Description
Remark
Distance for reference
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
-

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co,;Ltd 6
Connector
Stamp hole
Spacing of 1.27 mm
Size
24*38.5mm
-
Antenna
IPX/Stamp hole
50 ohm impedance
3. Dimension/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

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co,;Ltd 7
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
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

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co,;Ltd 8
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
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)

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co,;Ltd 9
4 Connect to MCU
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.
5 Function description
5.1 Fixed transmission

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co,;Ltd 10
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.
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

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co,;Ltd 11
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
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.

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co,;Ltd 12
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.

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co,;Ltd 13
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
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

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co,;Ltd 14
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
-
6.3 Continuous Mode (Mode 1)
Status
M0=1 M1=0 M2=0
Transmitting
Wireless data transmission is available.
Receiving
Wireless data receiving is available.
Baud rate & air
data rate
Module will calculate the minimum air data rate according to the configured baud rate. Since the modules
with different air data rate cannot communicate, the serial port parameters must be the same on both
receiver and transmitter.
Advantage
The data output on the receiver is continuous, it meets the requirements for MODBUS continuous
transmission and low latency.
Disadvantage
The baud rates on both receiver and transmitter must be same. The module will raise its air data when the
baud rate is raised, thus the receiving sensitivity will be lowered and operation range will be shorter.
Applications
Applicable for those applications not requiring distance but continuous data and response time.

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co,;Ltd 15
Note
1. The “wireless air data rate” in the configuration commands is invalid (SPED.210 bits) and software will
calculate automatically.
2. 0000 and FFFF are the broadcast addresses, which can be used to monitor and broadcast.
3. The addresses and baud rates must be same on both receiver and transmitter.
4. In continuous mode, both transmitter and receiver must be same model. For example, E70 (868T14S)
and E70 (868T30S) cannot communicate in continuous mode.
6.4 Sub-package Mode (Mode 2)
Status
M0=0 M1=1 M2=0
Transmitting
Wireless data transmission is available.
Receiving
Wireless data receiving is available.
Baud rate &
air data rate
Under this mode, the baud rate and air data rate are independent, both receiver and transmitter can have
different baud rate but same air data rate.
Advantage
Very low air data rate can be configured for longer distance, the data continuousness between output data
depends on the data packet length.
Disadvantage
Since the air data rate is low and the receiver needs to wait for the data packet length or timeout byte numbers, it
may cause some delay, which depends on the actual value as set.
Applications
Applicable for those applications requiring distance and continuous data while not requiring transmission speed.
Note
1. Air data rate and baud rate are not relative; the values are valid.
2. 0000 and FFFF are the broadcast addresses, which can be used to monitor and broadcast.
3. The addresses and air data rates must be same, but baud rates can be different on both receiver and
transmitter.
4. The size of individual data packet depends on the subpackage size CHAN [7:5] (excluding address and
channel for directional transmission)
6.5 Configuration Mode (Mode 3)
Status
M0=1 M1=1 M2=0
Transmitting
Transmission not available, serial data received will be discarded.
Receiving
Receiving is not available.
Configuring
Parameter configuration can be made in configuration mode with specific instruction format and UART 9600,
8N1.

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co,;Ltd 16
Note
When entering other modes from configuration mode, the module will reconfigure parameters, AUX keeps low
level during configuration;
After configuration completed, it outputs high level, so users are recommended to check the AUX rising edge.
6.6 Wake-up Mode (Mode 4)
Status
M0=0 M1=0 M2=1
Transmitting
Transmission is available.
Receiving
Receiving is not available.
Baud rate & air
data rate
Under this mode, the baud rate and air data rate are independent, both receiver and transmitter can have
different baud rate but same air data rate.
Advantage
It can wake up the receiver under mode 6; wake up code will be added automatically before transmitting, the
code number depends on the wake up time.
Disadvantage
The transmission time is long, only applicable to wake up the receiver, not applicable for common data
transmission.
Applications
For waking up the receiver under WOR mode.
Note
Under wake up mode, the single data packet length is 84 bytes (excluding the address and channel for
directional transmission).
6.7 Configuration Mode (Mode 5)
Status
M0=1 M1=0 M2=1
Transmitting
Transmission is not available. Serial data received are considered as configuration command.
Receiving
Receiving is not available.
Configuration
Parameter configuration can be made in configuration mode with specific instruction format and UART 9600, 8N1.
Note
When entering other modes from configuration mode, the module will reconfigure parameters, AUX keeps low level
during configuration;
After configuration completed, it outputs high level, so users are recommended to check the AUX rising edge.
6.8 Power Saving Mode (Mode 6)
Status
M0=0 M1=1 M2=1
Transmitting
Transmission is not available.
Receiving
Receiving is available.
Baud rate & air
data rate
Under this mode, the baud rate and air data rate are independent, both receiver and transmitter can have different
baud rate but same air data rate.

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co,;Ltd 17
Advantage
The module works under WOR status, it wakes up periodically and monitors the wireless data packets, when data
packet monitored, the module enters receiving mode and receives complete data packets, and outputs the data
through serial port, and then enters WOR status again, which can save power consumption significantly.
Disadvantage
Transmission is not available under this mode, the module must be switched to other mode for data transmission.
Applications
Applicable for those devices which have requirement on power consumption and need to receive data.
Note
It can only receive the data sent from the transmitter under mode 4.
6.9 Sleep Mode (Mode 7)
Status
M0=1 M1=1 M2=1
Transmitting
Transmitting is not available.
Receiving
Receiving is not available.
Others
Other functions of the module are closed, only can quit sleep mode by switching the M0, M1 and M2 status.
7.Instruction Format
In configuration mode（Mode 3：M0=1, M1=1, M2=0）, it supports instructions below.
(Only support 9600 and 8N1 format when setting)
No.
Instruction format
Illustration
1
C0 + working parameters
C0 + 5 bytes working parameters are sent in hexadecimal format. 6 bytes in total and must be
sent in succession.
( Save the parameters when power-down )
2
C1+C1+C1
Three C1 are sent in hexadecimal format. The module returns the saved parameters and must be
sent in succession.
3
C2 + working parameters
C2 + 5 bytes working parameters are sent in hexadecimal format. 6 bytes in total and must be
sent in succession. ( Do not save the parameters when power-down )
4
C3+C3+C3
Three C3 are sent in hexadecimal format. The module returns the version information and they
must be sent in succession.
5
C4+C4+C4
Three C4 are sent in hexadecimal format. The module will reset one time and they must be sent
in succession.
7.1 Default Parameter
Default parameter values：C0 00 00 18 44 1C

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co,;Ltd 18
Model
Frequency
Address
Channel
Air data rate
Baud rate
Parity
Transmitting
power
E70-900T30S
868MHz
0x0000
0x0E
2.5K
9600
8N1
1W
7.2 Reading Operating Parameters
Instruction format
Description
C1+C1+C1
In configuration mode（M0=1, M1=1, M2=0），
User gives the module instruction (HEX format): C1 C1 C1,
Module returns the present configuration parameters.
For example, C0 00 00 18 4E 1C.
7.3 Reading Version Number
Instruction format
Description
C3+C3+C3
In configuration mode（M0=1, M1=1, M2=0）,
User gives the module instruction (HEX format): C3 C3 C3,
Module returns its present version number, for example C3 0071 XX1 XX2 XX3 XX4 XX5.
70 here means the module model (E70 series); xx1 is the version number and XX2 XX3 XX4 XX5
refers to the other module features.
7.4 Reset Instruction
Instruction format
Description
C4+C4+C4
In configuration mode（M0=1, M1=1, M2=0）,
User gives the module instruction (HEX format): C4 C4 C4, the module resets for one time. During
the reset process, the module will conduct self-check, AUX outputs low level. After reset completed,
the AUX outputs high level, then the module starts to work regularly when the working mode can be
switched or be given another instruction.
7.5 Parameter Setting Instruction
No.
Item
Description
Notes
0
HEAD
Fix 0xC0 or 0xC2, it means this frame data is control command
Must be 0xC0 or 0xC2
C0: Save the parameters when
power-down
C2: Do not save the parameters when
power-down
1
ADDH
High address byte of module（the default 00H）
00H-FFH
2
ADDL
Low address byte of module（the default 00H）
00H-FFH
3
SPED
7
6
UART parity bit
UART mode can be different between
communication parties
0
0
8N1（Default ）
0
1
8O1
1
0
8E1
1
1
8N1（equal to 00）

Chengdu Ebyte Electronic Technology Co,;Ltd E70-900T30Suser manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co,;Ltd 19
5
4
3
TTL UART baud rate（bps）
UART baud rate can be different between
communication parties
The UART baud rate has nothing to do
with wireless transmission parameters &
won’t affect the wireless transmit / receive
features.
0
0
0
1200bps
0
0
1
2400bps
0
1
0
4800bps
0
1
1
9600bps（Default）
1
0
0
19200bps
1
0
1
38400bps
1
1
0
57600bps
1
1
1
115200bps
2
1
0
Air data rate（bps）
The lower the air data rate, the longer the
transmitting distance, better
anti-interference performance and longer
transmitting time
The air data rate must keep the same for
both communication parties.
0
0
0
2.5kbps
0
0
1
5kbps
0
1
0
12kbps（Default）
0
1
1
28kbps
1
0
0
64kbps
1
0
1
168kbps
1
1
0
168kbps
1
1
1
168kbps
4
CHAN
7
6
5
Packet length (only for sub-package
mode)
Under continuous transmitting mode
(M0=1 M1=0 M2=0), this parameter is
invalid
0
0
0
16 bytes
0
0
1
32 bytes
0
1
0
64 bytes（Default）
0
1
1
128 bytes
1
0
0
256 bytes
1
0
1
512 bytes
1
1
0
1024 bytes
1
1
1
2048 bytes
Communication Channel
00H~3FH,861～876.5，907～922.5MHz，（Default）0EH（868M）
5
OPTION
7
Fixed transmission (similar to MODBUS）
When it is 1, the first three bytes of each
user data frame can be used as high/low
address and channel. The module changes
its address and channel when transmitting.
And it will revert to original setting after
the process is completed.
It is transparent transmission under
continuous mode.
0
Transparent transmission mode (Default）
1
Fixed transmission mode
6
5
4
wireless wake-up time
This parameter is only valid for mode 4, 6.
For mode 6, the wake-up time will affect
the WOR cycle of the module, and affect
0
0
0
500ms
0
0
1
1000ms(Default)