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The ESP8266-12E is an improved version of the ESP8266-12, with an upgraded peripheral circuit that enhances impedance adaptation. The signal output is better, with significant improvements in stability and interference resistance. For users who have chosen the ESP-12, the improved version is fully compatible with the previous firmware. Additionally, six IO ports have been added to the base of the ESP-12, as well as SPI.
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.