For the past week I worked on catching up with the lab assignments. This is the button switcher with LEDs in parallel.
The next lab involved a potentiate and LED to simulate variable voltage.
Then I built the Servo variable resistor circuit. That was fun and noisy.
Now the speaker with photoresistor.
The only issue I had was breaking off the lead wire in a Arduino pin socket. Luckily that led to ground. I also got to use a soldering iron to connect the wire leads to my speaker.
Now hopefully I can work on an application of these for tomorrow’s class…