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If you want to build this project using your own components, but do not have the 32kHz crystals, above is a modification that does not need them in the wireless doorbell receiver circuit.
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3 comments:
I have Chinese wireless doorbell like this on the scheme but with crystal. When I put bateries in it, it immediately start to ring without pushing the button on transmitter. Could you tell me where is the problem?
Sorry for my English.
Ivo
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