ESP8266 control panel upgrade

While writing the article on multiplexing the esps inputs I came up with the idea of PWMing all the outputs at once by interrupting the path to ground with an n-FET. Thats actually not a bad idea, and I have an extra input on the analog MUX that I can use for a light sensor so I can even have auto-dimming. This is to describe how I did that.”


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