Ebyte E43-433T13S3, User Manual, Page: 12 / 17

Chengdu Ebyte Electronic Technology Co., Ltd. E43-433T13S3 User manual
Copyright ©2012–2018, Chengdu Ebyte Electronic Technology Co.,Ltd.
10
7.2 Reading operating parameters
Instruction format Description
C1+C1+C1
In sleep mode （ M0=1 ， M1=1 ），
User gives the module instruction (HEX format): C1 C1 C1,
Module returns the present configuration parameters.
For example, C0 00 00 18 20 00.
7.3 Reading version number
Instruction format Description
C3+C3+C3
In setting mode （ M0=0 ， M1=1 ） ,
User gives the module instruction (HEX format): C3 C3 C3,
Module returns its present version number, for example C3 43 xx yy.
43 here means the module model (E43 series); xx is the version number and yy refers to the other
module features.
7.4 Parameter setting instruction
No. Item Description Remark
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-off
C2: Do not save the parameters when power-off
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
Rate parameters, including serial port rate and air data rate
7, 6: reserved bit, It’s recommend to write 0
-------------------------------------------------
5
，
4
，
3 TTL serial port rate
（
bps
）
000: serial port baud rate is 1200
001: serial port baud rate is 2400
010: serial port baud rate is 4800
011: serial port baud rate is 9600
（
default
）
100: serial port baud rate is 19200
101: serial port baud rate is 38400
110: serial port baud rate is 57600
111: serial port baud rate is 115200
-------------------------------------------------
2
，
reserved bit
，
It’s recommend to write 0
-------------------------------------------------
1
，
0 Wireless air data rate
（
bps
）
00
：
air data rate is 1.2k
（
default
）
01
：
air data rate is 2.4k
10
：
air data rate is 4.8k
11
：
air data rate is 9.6k
-------------------------------------------------

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.
-------------------------------------------------
------------------------------------------------

The lower the air data rate, the farther the
distance, the stronger the anti-interference
performance and the longer the transmission
time.

The wireless transmission rate of both sides
must be same.
4 CHAN
7
，
6 reserved bit
，
It’s recommend to write 0
-------------------------------------------------
5
，
4
，
3
，
2
，
1
，
0 communication channel
Communication frequency
（
425M + CHAN * 0.25M
）
（
default 20H:433M
）
----------------------------------------

00H-3FH
，

Correspondnig to 425~440.75MHz