AC90-250V ESP8266 Wireless WIFI Relay Module 1 Channel ESP-12F Wifi Development Board AC/DC 5V/7-28V/5-80V Power Supply

Specifications: On-board mature and stable -12F WIFI module, large capacity 4M Byte Flash The I / O port and UART program download port of the WiFi module are all exported, which is convenient for secondary development. On-board AC-DC switching power supply module, power supply mode supports AC90-250V / DC7-12V / USB5V On-board WIFI module RST reset button 12F supports the use of development tools such as Eclipse / for Arduino IDE and provides reference programs under the Arduino development environment. One 5V relay on board, output switching signal, suitable for controlling load with working voltage within AC250V / DC30V Onboard power indicator, 1 programmable LED and relay indicator