Design - Ebyte E32-433T30D User Manual

Bhe Chengdu Ebyte Electronic Technology Co,Ltd E32-433T30D user manual
0 0 1 500ms invalid & can be arbitrary value.
0 1 0 750ms ® The transmitter works in mode 1 can
0 1 1 1000ms transmit the preamble code of the
1 0 0 1250ms corresponding time continuously.
1 0 1 1500ms ® When the receiver works in mode 2,
1 1 0 1750ms the time means the monitor interval
time (wireless wake-up). Only the
1 1 1 2000ms data from transmitter that works in
mode 1 can be received.
2 FEC switch ® After tum off FEC, the actual data
0 Turn off FEC transmission rate increases while
anti-interference ability decreases.
Also the transmission distance is
relatively short.
1 Turn on FEC (default) oo
® Both communication parties must
keep on the same pages about
turn-on or turn-off FEC.
1 0 Transmission power (approximation) The external power must make sure the
0 0 30dBm (default) ability of current output more than 250mA
0 1 27dBm and ensure the power supply ripple within
1 0 24dBm 100mV.
Low power transmission is not
1 1 21dBm recommended due to its low power supply
efficiency.
For example: The meaning of No.3 "SPED" byte:
The binary bit of the 7 6 5 4 3 5 1 0
byte
Configures by user 0 0 0 1 1 0 1 0
Meaning UART panty bit 8N1 UART baud rate 1s 9600 Air data rate is 2 4k
Corresponding 1 A
hexadecimal
8. Hardware design
® [tis 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
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