If you are using the NodeMCU or Esp8266, there being only 1 analogue input seems like a drawback. I wanted to use a 2 axis analogue joystick with mine, and use a simple 2 transistor setup to solve it.
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Github code: https://github.com/orionrobots/esp826...
Blog entry: http://orionrobots.co.uk/2017/05/28/j...
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