IN TINKERCAD: Build a circuit with a CR 2032 Battery + holder, alligator clips, Red LED, and a 330 Ω resistor. 

To earn credit for this module, submit a photo of the whole circuit and the LED shining brightly.

IN TINKERCAD: Build a circuit with a 4xAAA battery pack, alligator clips, a potentiometer set at 10kΩ, and a DC motor. 

Notice: What happens if you rotate the potentiometer's knob while running the simulation.

To earn credit for this module, submit a screenshot of the circuit zoomed in to show the motors RPMs.

Build a circuit with a variable power supply set to 5V (turn with key/flathead screwdriver), alligator clips, a 10kΩ potentiometer, and a DC motor. 

Notice: What happens if you rotate the potentiometer's knob while the circuit is running.

To earn credit for this module, submit a video showing the DC motor spinning (put a flag of tape on rotating gear to make it easy to see the spin)

Build a PARALLEL circuit with a CR 2032 Battery + holder, alligator clips, 2 Red LEDs, and a 330 Ω resistor. 

To earn credit for this module, submit a photo showing the circuit working, with both LEDs shining brightly.

In Tinkercad: Build a PARALLEL circuit with a CR 2032 Battery + holder, alligator clips, 2 Red LEDs, and a 330 Ω resistor. 

To earn credit for this module, submit a SCREENSHOT of the whole circuit running in simulation and the LEDs shining brightly (with no explosion warning signs).

In Tinkercad: Build a PARALLEL circuit with a 4xAAA battery pack and two seperate circuit loops as described:

Loop 1: 1 LED + 330 Ω Resistor

Loop 2: 10kΩ potentiometer + DC motor

To earn credit for this module, submit a SCREENSHOT of the whole circuit running in simulation, the LED shining brightly (with no explosion warning signs). and the DC motor spinning.

Build a PARALLEL circuit with a variable power supply set to 5V (turn with key/flathead screwdriver) and two seperate circuit loops as described:

Loop 1: 1 LED + 330 Ω Resistor

Loop 2: 10kΩ potentiometer + DC motor

To earn credit for this module, submit a video of the whole circuit running, the LED shining brightly, and the DC motor spinning.

A CR 2032 battery is used to light up  one red LED and one blue LED wired in parallel.  The red LED operates optimally at 2.2V while drawing a current of 30 mA, and the blue operates optimally at 3.2V while drawing 20mA. 

To earn credit for this module, submit BOTH:

• Design sketch showing calculations needed for resistor values

• Photo of built circuit with both red and blue LED shining brightly

IN TINKERCAD: A CR 2032 battery is used to light up  one red LED and one blue LED wired in parallel.  The red LED operates optimally at 2.2V while drawing a current of 30 mA, and the blue operates optimally at 3.2V while drawing 20mA. 

To earn credit for this module, submit a SCREENSHOT of the whole circuit running in simulation and both LEDs shining brightly (with no explosion warning signs).

IN TINKERCAD: A CR 2032 battery is used in parallel to light up 3 or more LEDs of ALL DIFFERENT COLORS.  The LED electrical characteristics can be found on the diagram taped next to the LED storage organizer.  Each LED must have it's current/voltage regulated by an appropriately calculated resistor. Your circuit must use a single switch that can turn off all the LEDs. 

To earn credit for this module, submit BOTH:

• Design sketch showing calculations needed for resistor values

• SCREENSHOT of the whole circuit running in simulation and all LEDs shining brightly (with no explosion warning signs).

Once you have the circuit working, experiment with your components in the following ways:

• What happens to the rate of flashing when you change the capacitance of the capacitor on Pin 2?

• How can you increase the number of LEDs flashing?  (Max current for 555 is 200 mA)