5V 2 Channel Bluetooth relay IOT Smart home app RF
Date:2019-07-24 Views:
LC-WM-Relay -5V-2 has two 5V10A relay and one SPP-C bluetooth Serial port ,also can control relay by app
Functions :
1. On-board loaded 8bit high performance MCU and spp-c bluetooth 2.1 slave module
2. provide bluetooth relay control app
3. Distance control : 10M (without obstacle )
4. Working voltage : DC5V
5. On board 2 way 5V,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.
Board size :40*64.5mm
1. interface introduction :
IN+、IN-：5V voltage input
TX、RX：UART serial port PIN
5V、GND、SWIM、NRST：program download port
LED 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).Independent use,turn USB to TTL serial module ,debug SPP - C module,plug into the left side (To avoid interference)
COM1:common terminal
NC1:Normal close
NO1:Normal open
COM2:common terminal
NC2:Normal close
NO2:Normal open
Relay control command (hex form)
Turn on first relay ：A0 01 01 A2
Turn off first relay ：A0 01 00 A1
Turn on second relay ：A0 02 01 A3
Turn off second relay ：A0 02 00 A2
1.power supply connection: IN+ to positive ,IN- to negative of 5V power supply
2.app controls 2 way relay
2 app is optional : one is developed by LC company ,another is general APP downloaded from the android APP store
2.1Instruction for LC app
2.1.1 Install android mobile terminal "LCBS test procedure" APP, bluetooth serial transmission tool, open the APP, click "search" bluetooth, mobile phones connected to the bluetooth module, input password and click confirm, after the connection is successful, blue light turns slow flash into always on, and then click on the square to control relay switch
Generally app instruction :
Install APP "BlueSPP 37"to android mobile .Bluetooth serial transmission tool send command to relay.Click on the "switch", then input name and contents of 2 way relay separately by pressing gray square continuously (instruction format is HEX )
Open the "BlueSPP 37" APP, click "connect", and the phone connects to the bluetooth module. After the connection is successful, the blue light will be changed from slow to normal, and then click the gray square to send instructions to control the switch of the relay.
Prepare a USB to TTL serial interface module. GND, TX and RX of TTL module connects respectively to GND, TX and RX of relay.Opens a serial port debug software on the computer (e.g., SSCOM32), select baud rate to 9600, send A0 01 01 A2 and A0 02 01 A3 by hex format to open the first 2 relay; send A0 01 00 A1 and A0 02 00 A2 to closed . Take the example of opening a relay.
Method of changing Bluetooth name and password( take 5V as example )
Wiring methods: 5 v , RX and TX, GND on bluetooth relay respectively connect 5 v , TX and RX, GND of TTL module(try to exchange TX and RX if no response), modify the bluetooth relative parameters by sending the AT command
Change the password: if you want to change the password to 8888, open the serial debugging assistant software on the computer (such as SSCOM32, select baud rate 9600, check "send new line"), enter AT+PIN8888, click send.
Modify the bluetooth name: send AT+NAMEBOLUTEK, you can change the name to BOLUTEK, and then send AT+RESET to make the newly modified name come into effect.
For more AT instructions, you can view spp-c data manuals in the data
