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Expected completion time of this lab: 20 min.

  • Connect a reed switch to drive pin DP2 high/low

  • What circuit do you use?

  • Modify the flow from Lab 40. Dashboard: LED to interact with URL "/digital_out/D4" rather than "/digital_out/INDICATOR_0"

  • Make sure you can switch the buzzer on/off from your phone

Extra points!

Create a Node-RED dashboard on which you can control both the LED and the buzzer.

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