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RF 433 Switch Failing

Thales Maia last edited by

Hi there, I equipped all my home lights with a RF 433 switch, like the one bellow.

I use a normal three-way switch and a remote (433) switch. To power them, I use a 12V 3A power source and a 33mF capacitor together with the power source.

The problem I'm facing is that from time to time (~5 - 12hrs), with no apparent reason, the relay switches. Since it always switch to original state, I've assumed that it was a power source failure problem. That is why I changed the power source and put a big capacitor. The problem remains.

Does anyone ever used this module? If so, can you tell me if this is reliable?
I needed to power the system of since it was turning my lights on while I was sleeping.

Important detail about my installation. I got lot of CAT5e cables, so I used them with a splitter to power up 12V to the boards.
Also, it seems that is always the same boards that fail.
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Great! I'm glad it works and thank you very much for reporting back!
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@wrendral said in "Remote Irrigation with LoRaWAN: LM27313 Challenges and PCB Design": I will go with a Li-Po Battery type: 304048 3.7V 1200mAh Might work, but maybe the internal protection will trigger with the high current peaks. I'd suggest you plan a 0 Ohm, (2512/THT) resistor as R2 and then replace it with a 100Ohm/1Watt if the protection triggers.

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