I tried the first three labs, reviewed my circuit knowledge, and partially simulated the circuit on tinkercad.com.

Questions:

  1. The Arduino Nano sticker included in the Arduino Nano packaging shows a 5V connector, but it doesn't actually provide power. Could this 5V be used to power the Nano from an external circuit?
  2. In the LED parallel circuit experiment, we found that connecting LEDs of different resistance values in series caused the LEDs to not work properly. I suspect this is a short circuit. But what if I want different colors of LEDs to light up? Perhaps different resistors?

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Powered by Arduino Nano, lights up the LED.

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Try using a benchtop switching power supply. Coarse and fine adjustment of voltage and current.

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Use a multimeter to check the circuit.

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Multimeter circuit breaker test.

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Three LEDs are connected in parallel and lit for testing.

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Connect two bulbs in series and light them up for testing.