Basic Operation; Hardware Design - Ebyte E32-900T30D User Manual

Chengdu Ebyte Electronic Technology Co., Ltd
5
0
0
0
0
1
1
1
1
2
0
1
1
0
0
1
1
For example: The meaning of No.3 "SPED" byte:
The binary bit of the byte
Configures by user
Meaning
Corresponding hexadecimal
Note: When the module communicates with other E32 modules, pay attention to the communication channel to be
consistent. For example, the starting frequency of the E32 915 series is 900Mhz. To communicate with this module, the
value of the register (CHAN) numbered 4 should be 0x35.

8 Basic operation

8.1 Hardware design

It is recommended to use a DC stabilized power supply. The power supply ripple factor is as small as possible, and

the module needs to be reliably grounded.；
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4 3 wireless wake-up time
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
FEC switch
Turn off FEC
Turn on FEC (default)
0 Transmission power (approximation)
0 30dBm (default)
1
0
1
7 6
0 0
UART parity bit 8N1
1
250ms (default)
500ms
750ms
1000ms
1250ms
1500ms
1750ms
2000ms
27dBm
24dBm
21dBm
5 4
0 1
UART baud rate is 9600
E32-900T30D User Manual
The transmit & receive module work in

mode 0, whose delay time is invalid & can
be arbitrary value.
The transmitter works in mode 1 can

transmit the preamble code of the
corresponding time continuously.
When the receiver works in mode 2, the

time means the monitor interval time
(wireless wake-up). Only the data from
transmitter that works in mode 1 can be
received.
After turn off FEC, the actual data

transmission rate
anti-interference ability decreases. Also the
transmission distance is relatively short.
Both communication parties must keep on

the same pages about turn-on or turn-off
FEC.
The external power must make sure the
ability of current output more than 1A and
ensure the power supply ripple within 100mV.
Low power transmission is not
recommended due to its low power supply
efficiency.
3 2
1 0
Air data rate is 2.4k
A
increases while
1 0
1 0
17