Product Name:
DC 5V TYPE-C USB UART RS232(TTL) Relay Module

Package inlcuded:
DC 5V 1Ch USB Relay Board OR DC 12V 1Ch TTL232 Relay Board

Description:
1. Working voltage : USB Version DC 5V; TTL232 Version DC 12V
2. Standby current (DC 12V) 17MA, relay open 48MA
3. UART Serial ports TTL232 Control Relay(RXD TXD GND)
4. Power indicator : LED lights;
5. Communication protocol: UART protocol communication, baud rate 9600kpbs, 8 data bits, one stop bit, no parity. Each data frame contains eight bytes. Two-way data transmission.
6. Baud rate 9600kbps, 8 data bits, one stop bit, no parity. Each data frame contains eight bytes.
7. Size : USB Version 53*29*19mm;TTL232 Version 53*27*19mm
8. Weight : USB Version 16g; TTL232 Version 20g

For more information, please contact me

Application：
Remote control/measurement system;
Smart Home；
Access control ;
Identification system ;
Data collection;
Baby monitoring system;

1 Control commands(HEX):
1. Reading status(reading the satus of the relay (on/off))
55 56 00 00 00 00 00 AB
2.Relay open (issue this command,Relay open,COM connect to NO)
Channel 1 : 55 56 00 00 00 01 01 AD
3. Relay close (issue this command,Relay close,COM disconnect NO,and COM connect to NC)
Channel 1 : 55 56 00 00 00 01 02 AE
4. Relay toggle(Relay status reversal,if COM connect to NO,this commands will Disconnect COM to NO and Reverse COM connect to NC,and vice versa)
Channel 1 : 55 56 00 00 00 01 03 AF
5. Relay momentary(Relay COM connect to NO,disconnect after 200MS)
Channel 1 : 55 56 00 00 00 01 04 B0
6. Relay Interlock
Channel 1 : 55 56 00 00 00 01 05 B1
Once issue a command,will have a return fame,7th byte of return fame mean the satus of realy.