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Step 5Connect the Arduino
In this step I connected the Arduino to the go between board.
The Keypad shield goes just on top of the Arduino.
Solder onto the shield the separate Thermistor voltage dividers inputs to Analog 1 and Analog 2, Analog 3 takes in the Co2 input.
Solder to digital 2 the Humidity input.
Solder on the power supply, I recommend 7 volts supply as the C02 reader needs 6 volts at least. I soldered the power supply onto the go between board and then soldered from there to the Arduino.
I fed the 6 volts to power the humidity sensor and C02 sensor directly(as the C02 board had a voltage regulator), but used the 5volt reference voltage from the Arduino for the temperature sensor voltage divider.
The Keypad shield goes just on top of the Arduino.
Solder onto the shield the separate Thermistor voltage dividers inputs to Analog 1 and Analog 2, Analog 3 takes in the Co2 input.
Solder to digital 2 the Humidity input.
Solder on the power supply, I recommend 7 volts supply as the C02 reader needs 6 volts at least. I soldered the power supply onto the go between board and then soldered from there to the Arduino.
I fed the 6 volts to power the humidity sensor and C02 sensor directly(as the C02 board had a voltage regulator), but used the 5volt reference voltage from the Arduino for the temperature sensor voltage divider.
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