Elecbee DC12V 4-Channel Android Mobile bluetooth Relay Module

Product Features:
 
1, On-board N76E003/STM8S003 and SPP-C bluetooth 2.1 module
2, The relay can be controlled with APP
3, Effective control distance(on open area): 10m
4, Power supply: 12V
5, On-board 12V, 10 A / 250 v AC 10 A / 30 v DC relay, absorb 100000 times
continuously, Module with diode effusion protection, short response time
6, On-board optocoupler isolation components, anti-interference ability is strongly
7, On-board bluetooth indicator and relay indicator LED
8, On-board preserved UART debug interface(Baud rate is 9600) and MCU program interface
9, Size: 62.7*63.2mm

Interface:

IN+, IN-: 12V power input
TX, RX: UART communication
SWIM, NRST: MCU program interface
LED D2/D3/D4/D5(red): Relay indicator
LED D1(blue): bluetooth state indicator, the description of D1 as below:
(1)It’s means wait for establishing connection with the APP when D1 blink slowly
(2)It’s means the bluetooth connect with the APP successfully when D1 on all the time
Relay control command(must be hex format):
Open the 1st relay: A0 01 01 A2
Close the 1st relay: A0 01 00 A1
Open the 2nd relay: A0 02 01 A3
Close the 2nd relay: A0 02 00 A2
Open the 3rd relay: A0 03 01 A4
Close the 3rd relay: A0 03 00 A3
Open the 4th relay: A0 04 01 A5
Close the 4th relay: A0 04 00 A4