Lab 2: Connecting More LEDs
Series and Parallel
This design takes the basic circuit and adds a second LED in parallel and a switch you press to turn it on. A switch that only stays on while you are pressing it closed is called a momentary switch (as shown in Figure 2-9).
- Heavy paper, like construction paper or cardstock
- Permanent marker
- Copper or aluminum foil tape
- CR2032 coin battery
- Small binder clip
Modify the Voltage
How can we modify the voltage in our circuit?
We can use the multimeter to know the voltage throughout the circuit. Let’s try!