ESP8266 DC7-28/5V 30A Wireless WIFI Dual Channel Relay Module ESP-12F Development Board For Arduino Smart Home

Manual Click here to openDescription The ESP8266 dual 30A relay development board is equipped with ESP 12F WiFi module all I O ports are led out and it supports DC7 28V 5V power supply Provide Arduin0 development environment reference code suitable for ESP8266 secondary development learning smart home wireless control and other occasions Features 1 On board mature and stable ESP 12F WiFi module large capacity 4M Byte Flash 2 The I O port and UART program download port of the WiFi module are all led out which is convenient for secondary development 3 The power supply mode supports DC7 28V 5V 4 Onboard WiFi module RST reset button and a programmable button 5 ESP 12F supports the use of development tools such as Eclipse Arduin0 IDE and provides reference programs under the Arduin0 development environment 6 Onboard 2 5V 30A relays output switch signals suitable for controlling loads whose working voltage is within AC 250V DC30V 7 On board power indicator relay indicator and 1 programmable LED 8 Board size 83 x 68mm9 Weight 85gInterface introduction Programming port ESP8266 s GND RX TX 5V are respectively connected to the GND TX RX 5V of the external TTL serial port module IO0 needs to be connected to GND when downloading and then disconnect the connection between IO0 and GND after the download is complete Relay output NC Normally closed the relay is short connected with COM before it is closed and it is suspended after it is closed COM public e