3Pcs ESP8266 ESP-12F Remote Serial Port WIFI Transceiver Wireless Module
ESP-12F: breakthrough design, there are new breakthroughs. The new four-layer board design, the new revision antenna RF performance optimization, compared to the communication from the ESP-12E increased by 30% to 50%! Semi-hole chip technology, the whole IO leads, with metal shielding shell, has passed FCC & CE & RoHS certification, built-board PCB antenna, 4M bytes Flash.
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3 x ESP8266 ESP-12F Remote Serial Port WIFI Transceiver Wireless Module