Only breadboard with PSU
Test the retrofit of the doorbell with only the breadboard and a PSU
🫑 A retrofitted wired audio doorbell with added WiFi connectivity 🔔
Test the retrofit of the doorbell with only the breadboard and a PSU
This example shows how to test the retrofit of the doorbell with only the breadboard and a PSU providing 3.3V. The breadboard is used to connect the push button and the retrofit board. The PSU is used to provide power to the retrofit board.
Wire up the hardware accordingly
