How to use a simple LED as brewReady signal
- The easiest way is to use the un-used arduino GPIO16 (D0). In this case it is advised to add a small resistor between the LED and voltage/ground.
- Another possibility is to use arduino GPIO15. For this to work you have to connect a resistor (R3) and in parallel another resistor (R7) with the led (LED2) in series. This has to be connected between GPIO Pin 15 and GROUND as seen in [Schematic](https://www.forward.com.au/pfod/ESP8266/GPIOpins/index.html (R3, R7, LED2).
- Required configuration in config.h:
- #define BREW_READY_LED 1
- #define BREW_READY_DETECTION 0.2 # or any other value
- #define pinLed 15 # or 16
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