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Example video What you'll need: - a wireless doorbell - 1 x transistor (like bc547) - 1 x relay - 1 x 1K resistor Tools: - some solder - a sol...
Normal: When you push the button = The remote sends a signal. = The doorbell receives the signal and makes a pin high in an IC on the PCB. = That pin...
Use the flowchart
V+ is connected to the positive lead on the battery-pack of the doorbell. GND is connected to the negative lead on the battery-pack of the doorbell. T...
When the school bell is not connected you can hear the relay switching when you push the button. TEST 1 And when everything is connected the bell wi...
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