Objective: To investigate about the Double Pole Double Throw (DPDT) Switch.
Analysis/Discussion:
A Double Pole Double Throw (DPDT) switch is an intermediate switch placed in a multi-way switching system in order to control lamps operated by more than two switches. They are crossover switches that have four terminals. Two of these terminals are inputs, and the other two are outputs. Below is a DPDT component and how it is connected:
The DPDT switch is used in this project solely to increase and decrease the needle of the speedometer. This switch have three position which in this project are to:
- Increase
- Stop
- Decrease
Below is a video showing an application of DPDT switch:
Conclusion: In my opinion, this switch is suitable and it will be connected to the speedometer.