12V Dual Way Bluetooth Relay Module 12V 10A Wireless Smart Relay Module IoT Smart Home Phone APP Remote Control Switch

Product Parameters Onboard STM8S high-performance MCU and SPP-C Bluetooth 2.1 serial port slave module Bluetooth relay control APP is provided Onboard Bluetooth status indicator and relay indicator The UART debugging interface and STM8 SWIM program download interface are reserved

Control distance: 10m (open environment)

Operating voltage: DC 12V

Maximum DC control voltage: DC 30V

Maximum AC control voltage: AC 250V Interface introduction IN+ and

IN-: 12V power input TX, RX: UART serial port pins 5V, GND, SWIM, NRST: single chip computer program download port LED D2 and

D4 (red): Relay operating indicator light, on when turned on

LED D1 (blue light): Bluetooth status indicator, Slow blinking indicates waiting for the connection to be established with the mobile phone, When it is steady on, the connection is successfully established

Reserved two jumper caps: RX, RX1, TX, TX1 in normal use. If you want to debug the SPP-C module using the USB to TTL serial port module alone, please insert them to the left end

COM: common terminal

NC: normally closed end, the relay is short connected with COM before suction, and suspended after suction

NO: normally start, the relay is suspended before closing, and short connected with COM after closing

Relay control instruction (hex): Turn

on the first relay: A0 01 01 A2 Turn off the first relay: A0 01 00 A1 Turn on the second relay: A0 02 01 A3 Turn off the second relay: A0 02 00 A2