General • Detect input from DFRobot Wireless Receive Switch (433MHz)

I'm trying to create a clock with a wireless snooze button. I've got a Waveshare Pico-Clock-Green:

https://www.waveshare.com/wiki/Pico-Clock-Green

And a DFRobot transmitter and receiver:

https://wiki.dfrobot.com/SKU_TEL0146_Se ... tch_433Mhz

I've connected the receiver output to pin 27 and am trying to program it to do the same thing as the up button:

https://github.com/charginghawk/PicoClo ... 1d826da29f

But the pico isn't doing anything when receiver receives the signal. The transmitter-receiver pairing is working, when I press the button on the transmitter, the light flashes on the receiver.

I think the problem is assuming the receiver output can be mapped the same way as the buttons:

https://github.com/charginghawk/PicoClo ... pp#L13-L21

Anybody have any idea how to read the receiver's signal?

Statistics: Posted by rotorag — Sun Jan 18, 2026 3:24 pm

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