EX3 requires us to add another LED as an output. I was not sure if a small transparent component is an LED (I believe it is not). Also, I spend sometime to figure out how could I connect the two LED in parallel (instead of in sequence).
I found my difficulty mainly lies on getting familiar with the hardware parts. I feel as the circuit gets complicated, i may risk getting confused by my own network design. I also need to spend more time to learn what are the names of different electronic components.
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