Introduction: Gas Detection Alarm
We will build a gas detector below that will sound an alarm if it detects a gas leak. The alarm will sound until the gas leak is stopped. In addition, LEDs are triggered depending on the amount of gas that the sensor detects. If there is a lot of gas leaking, all four LEDs should light up; if there is little gas, only one of the four LEDs should light up
Link to this project in Tinkercad.
https://www.tinkercad.com/things/9QUPjCApJsL
Supplies
The supplies are in the file below.
Step 1:
Connect all the wires as shown in the picture above.
Step 2:
Add code to the circuit.
The code is available to download.






