How to Wire: L, N: AC90-250V power supply AC90-250V to DC5V switching power supply (do not touch this directly with your hands when using AC power supply!!) VCC, GND: DC7-12V power supply; Micro USB: DC5VUSB power supply 6x6mm Button: ESP8266 reset button; UART Program Download Port: ESP8266's GND, RX, TX, 5V are respectively connected to the GND, TX, RX, 5v of the external TTL serial port module, 100 must be connected to GND when downloading, and then disconnect the connection between 100 and GND after the download is complete; GPIO pin header leads to the port; 8 Relay output terminal: Normally closed, the relay is short-connected with COM before the pull-in, and hangs in the air after the pull-in; COM: Public end; NO: Normally open end, the relay is suspended before being closed, and shorted to COM after being closed. Power indicator LED; Programmable LED; Relay indicator LED: lights up when it is closed. Package List: 1 x Relay Module3 x Pins 2 x Sockets Note: 1. DC7-12V, DC5V USB two power supply methods can choose one 2. When using AC power supply, do not directly touch the AC90-250V to DC5V switching power supply with your hands See moreREASONABLE IN STRUCTURE :The development board module is professional in design, reasonable in structure, and easy to replace and install the module. The relay module has undergone rigorous testing to ensure the best quality and safer use. GOOD INSULATION PERFORMANCE :The wireless development board module is made of high-quality materials, with good insulation performance, and the electronic component operation is simpler and time-saving, and the performance is stable. EXQUISITE WORKMANSHIP :The wireless control relay module has excellent production technology and exquisite workmanship, and the module is not easy to weld. Relay board can achieve maximum accuracy and long-term durability. STRONG DRIVING ABILITY :The program download ports of the WiFi module are all led out, which is convenient for secondary development, has strong driving ability and stable performance. The relay board is durable and not easy to rust. CONVENIENT TO INSTALL :Relay module The relay module can meet the needs of various work scenarios and is simple and convenient to install. The relay board has stable performance and long service life.
