JESSINIE 12V 4 Channels Bluetooth Relay Module 4 Way Bluetooth Wireless Smart Relay Module Smart Home Phone APP Remote Control Switch

Product Parameters Onboard module: 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 Diode cascade protection: With diode cascade protection On-board indicator: Bluetooth status indicator (blinking slowly when not connected, long on after connection) and relay status indicator (lit after suction) 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/D3/D4/D5 (red): Relay operating indicator light, on when turned on LED D1 (blue light): Bluetooth status indicator, described as follows: 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 Tip: Currently, the module only supports the Android system, not IOS