It reads the current temperature from a LM35 temperature sensor and actuates the valve to bring the wort to a set point. A neat addition to the build is a wireless radio. The nRF24L01 module ...
In this case, the temperature is read by a LM35 temperature sensor and that value, along with the time, is recorded to a .csv file on the SD card in one minute intervals. There is also an LCD ...
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