Testing¶

Now that I had all the components ready I could assemble the entire CFT system.

Integration¶

Sensor housing mounted — CFT sensor housing mounted

Testing everything¶

I had already tested all the sensors but with everything assembled I wanted to make sure everything worked.

Air Humidity sensor test (DHT22)¶

With a boiling cup of water I tested the humidity sensor.

DHT22 node test

I also tested the Air Temperature sensor (DHT22) but the air temperature change is so slow that it would have been too long for a video but rest assured the air temperature sensor (DHT22) works.

Gas sensor test (MQ2)¶

Using a lighter I tested the gas sensor.

MQ2 node test

Waterproof temperature sensor test (DS18B20)¶

I used a cold glass of water to test the waterproof temperature sensor. If the temperature drops below a certain number the screen displays a warning.

MQ2 node test