Signals that become 0s and 1s Practice 2 | Zoonk

Signals that become 0s and 1s Practice 2 | Zoonk

2Lesson 2 of 36

Practice

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Electronics test bench with a small microcontroller board wired to a door sensor module. A laptop screen shows a test app with the readable warning: `Door input stuck LOW`. A digital multimeter sits beside the board. One sensor LED is visibly lit. A coffee mug is nearby but not touching anything.

Bench test

I’m at the test bench with Nina. The door sensor LED blinks, but the test app says the input is stuck LOW. The board is innocent-looking, which is rude.