DC12V 2 Channel bluetooth Relay IOT Smart Home APP Remote Control Switch

File Click here to openFeatures 1 On board loaded 8bit high performance MCU and spp c bluetooth 2 1 slave module2 provide bluetooth relay control app3 Distance control 10M without obstacle 4 Working voltage DC12V5 On board 2 way 12V 10A 250V AC 10A 30V DC relay can be used continuously for 100 thousand times with diode discharge protection within short time 6 With bluetooth status indicator and relay indicator 7 Reserved UART debugging interface and MCU program download port 8 Board size 40 64 5mm Interface introduction IN IN 12V voltage inputTX RX UART serial port PIN5V GND SWIM NRST program download portLED D2 D4 red working indicator turn on when relay is on LED D1 blue bluetooth status indicator exact function as follows 1 Slow flash means waiting for a connection to the phone 2 When it is always bright it connects phone already Two reserved jumper cap normal use insert to the right side that is RX connects with RX1 TX connects with TX1 Independently use turn USB to TTL serial module debug SPP C module plug into the left side To avoid interference COM1 common terminalNC1 Normal closeNO1 Normal openCOM2 common terminalNC2 Normal closeNO2 Normal openRelay control command hex form Turn on first relay A0 01 01 A2Turn off first relay A0 01 00 A1Turn on second relay A0 02 01 A3Turn off secondrelay A0 02 00 A2 1 power supply connection IN to positive IN to negative of 12 V power supply2 app controls 2 way relay2 app is op