Get an additional analog pin? I have the following board:



As far as I can tell, there's only a single analog pin (A0). But I need at least 2 additional (for 3 total).

Is there some way to fake analog input on GPIO pins?
The ESP8266 only has one ADC pin. You can:


Use an analog MUX to switch that pin between different signals
Connect an external I2C ADC chip
Connect an external SPI ADC chip
Connect the ESP8266 to another MCU (such as an Arduino) and get that to do analog readings.