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Turn your doorbell into a vicious guard dog alarm! Watch the video then buiild your own and protect your home and family.
1. Recording Module2. Wireless Audio/Video Transmitter and Receiver3. Standard 12V Relay4. Standard 50V Rectifier5. N4001 Diode
Following the schematic, make the connections between the rectifier, diode and relay. You will need to bench test your relay to determine the input an...
Remove the playback button on the recording module by bending back the two tabs on the back.Solder the two connections coming from the rectifier to th...
Run the sound effect of your choice and press the recording module button to record the sound to the module. I used this one and edited it a bit.
Plug an audio cable into the cable your soldered to the recording module. This is also the output as well as the input. Connect it to the Wireless Tra...
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Does this make sense?
This is a great project. Two issues that I picked up, maybe you can help to correct this. The first issue is that the two leads from the rectifier first showed being connected to the doorbell, and then shown somewhere else as being connected to the recording device. So, which one is right? I vote the doorbell leads go to the 12V relay and not to the playback device.
Also, where does the 2.4 GHz Audio/Video transmitter connects? I would have thought at the playback connector , but does that mean these leads at T'd into the two rectifier leads?
With these two clarifications, this is a simple yet effective device.
great idea; indeed no need even a microcontroller. However it works only if bell is pressed. one can try adding a PIR sensor which triggers the recorder if anyone comes close to door..of course home owners won't be worried about it and they can turn it off after they enter the place. great work Mr.Kipkay..please keep posting
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