ESP8266 ESP-12F Serial WIFI Wireless Module Transceiver ESP8266 4M Flash

ESP8266-12F is an enhanced version of ESP8266-12, perfect peripheral circuit, four-layer board technology, enhanced impedance matching, better signal output, whether it is stability or anti-interference ability, PCB antenna has been tested by professional laboratory, perfect match, After ROHS certification, they have been greatly improved! For users who have previously chosen ESP-12, it doesn’t matter if the product has already been made. The enhanced version is fully compatible with the previous firmware. The pin is added with six IO ports and SPI port on the basis of ESP-12. The development is more convenient and application. More extensive!