Step 5: Get Experience Using the Transistor as a Switch
The transistor is the most important single component in electronics.
In the previous step you got an intro to how it works. Now it’s time to use it.
Build several different circuits where the transistor acts as a switch. Like the LDR circuit.
After completing this step you should know how to control things like motors, buzzers or lights with the transistor.
And you should know how you can use the transistor to sense things like temperature or light.
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Step 6: Learn How To Solder
