Catalog > Consumer Electronics > Kits > Various Kits ESP8266 30A Relay WiFi Module Board. ESP8266 30A Relay 1CH WiFi Module Board BDD ESP8266 RELAY 1CH 5/28V 30A One Channel ESP8266 30A Relay WiFi Module Board. Based on the ESP-12F WiFi Module. Has A 30A Relay. Power Supply DC 7 - 28V OR 5V 228.00 ZAR inc for 1 Each 7 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Features A single channel relay WiFi module based on the ESP-12F WiFi module and a 30A relay Mature and stable ESP-12F WiFi module on board, 4MB flash. The I/O port of the WiFi module and the UART program transfer port are all driven out. It is convenient for secondary development. Power supply DC7-28V / 5V. Onboard is a WiFi module RST reset button and a programmable button. ESP-12F supports the use of Eclipse/IDE and other development tools and provides reference programs in development environment On board is a single channel 5V/30A relay which is suitable for controlling the loads within AC 250V/DC30V voltage range. Onboard a power indicator, a relay indicator. The ESP-12F comes with a programmable LED. Board size: 78*47mm