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2. Pin Assignment
3. LED
LED
PWR
RF_Tx
100ms Flash
RF_Rx
500ms Flash
4. Rotary Switch
Switch Name
RF Baud Rate
* If COM rate is 115200 bps, the RF rate will set to 57600 bps.
Switch Name
COM Rate
RFU-433 Quick Start v1.00, January 11, 2019
Behavior
On
+10 ~ +30 V
Off
Power Off
On
RF is transmitting data
Off
RF is no data to transmit
Always On
RF is receiving data, signal strength high
RF is receiving data, signal strength middle
RF is receiving data, signal strength low
Off
RF is no data to receive
No
Baud rate (bps)
0* Same with COM
2
38400
4
9600
6
2400
8
650
Firmware version
F
No
Baud rate (bps)
0
115200
2
38400
4
9600
6
2400
8 ~ E reserved
Pin
Description
RxD
TxD
RS-232
GND
F.G.
Frame Ground
D-
RS-485
D+
GND
Power:
+10 ~ +30 V
+Vs
Description
Power On
DC
No
1
3
5
7
9 ~ E
No
1
3
5
7
-------------------------------------
1A
DC,
Baud rate (bps)
57600
19200
4800
1200
reserved
Baud rate (bps)
57600
19200
4800
1200
2
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