Product Parameters Onboard STM8S high-performance MCU 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 Size: 20mm*62mm Basic functions and instructions IN+: positive terminal of the DC 12V power supply IN-: DC 12V power source COM: public terminal NO: Normally open interface of the relay. The relay is suspended before closing and shorted with COM after closing NC: normally closed interface of relay, short connected with COM before relay closing, suspended after closing Basic operation instructions: After the connection is correctly connected, install the "Bluetooth Smart Control" APP on the Android phone, search for the Bluetooth device and connect it. The pairing password is 1234, long press the gray box in the interface to add the serial port instruction, and input the name and content of the instruction (open the relay when the instruction content is A00101A2; Turn off the relay when the instruction content is A00100A1) and select to send in hexadecimal form, then click the corresponding box to control the switch of the relay, or download other Bluetooth apps in the APP store to control by sending instructions. Tip: Currently, the module only supports Android system, not IOS.

On-board 8-circuit 12V, 10A/250V AC 10A/30V DC relay, capable of continuous closing for 100000 times, with diode leakage protection and short response time. Two types of APP are optional, which can be downloaded and controlled wirelessly, and are dedicated to Bluetooth relay; General APP downloaded from Android App Mall. Mobile APP is connected to Bluetooth control. Mobile APP is easy to configure and operate. Realize wireless control of mobile phone, switch on and off anytime and anywhere. In the open environment, the maximum stable transmission distance of the mobile phone when it is carried on the Bluetooth module is 10m.