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ESP8266 nEXT EVO – Analog extension Board – AN1 – P3
This is Part 3 of the ESP8266 nEXT EVO Analog Extension Board (AN1) In this part we will talk about the ESP8266 nEXT Evo 8 Bit I/O Expansion Port based on the PCF8574 chip from NXP, testing procedures and software programming for the AN1 Board Previous related Articles: New ESP8266 Read more…