Pro-Lite, Inc.
E32-A user manual
15
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.
0
1
1
1000ms
1
0
0
1250ms
1
0
1
1500ms
1
1
0
1750ms
1
1
1
2000ms
2
FEC switch
After turn off FEC, the actual
data transmission rate increases
while 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.
0
Turn off FEC
1
Turn on FEC (default)
1
0
Transmission power (approximation)
The external power must make sure
the ability of current output more than
250mA and ensure the power supply
ripple within 100mV.
Low power transmission is not
recommended due to its low power
supply efficiency.
0
0
20dBm (default)
0
1
17dBm
1
0
14dBm
1
1
10dBm
For example: The meaning of No.3 "SPED" byte:
The binary bit of the byte
7
6
5
4
3
2
1
0
Configures by user
0
0
0
1
1
0
1
0
Meaning
UART parity bit 8N1
UART baud rate is 9600
Air data rate is 2.4k
Corresponding hexadecimal
1
A
8. 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.
;
Please pay attention to the correct connection of the positive and negative poles of the power supply. Reverse
connection may cause permanent damage to the module
;
Please check the power supply to ensure it is within the recommended voltage otherwise when it exceeds the
maximum value the module will be permanently damaged
;
Please check the stability of the power supply, the voltage can not be fluctuated frequently
;
When designing the power supply circuit for the module, it is often recommended to reserve more than 30% of the
margin, so the whole machine is beneficial for long-term stable operation.
;
The module should be as far away as possible from the power supply, transformers, high-frequency wiring and other
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