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Simple RF Receiver issue
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Simple RF Receiver issue

by monkeyboys on Wed Apr 14, 2021 4:27 pm

IMG_5998.JPG
IMG_5998.JPG (98.12 KiB) Viewed 307 times
I'm using the Simple RF Receiver Momentary M4 type and it is working, but in reverse. The LEDs are always lit and a press of the keyfob momentarily turns them off. I'm guessing something is just wired funny but I don't know what. Pic attached.

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Re: Simple RF Receiver issue

by adafruit_support_mike on Mon Apr 19, 2021 7:56 pm

You have one end of the LED connected to the 5V rail instead of GND. Try moving that connection to GND.

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Re: Simple RF Receiver issue

by m_g on Sat Jun 12, 2021 6:50 pm

Hello,

Simple RF M4 Receiver - 315MHz Momentary Type PRODUCT ID: 1096

The product info reads:
"The M4 momentary type acts like a push button - when the A button is held down, the matching pin goes high. When the A button is released, the matching pin goes low. The pins only go high when a button is pressed"

The pins depicted in the photos are:
GND +5V D0 D1 D2 D3 DT

Which pin goes low when the A button is held down?

Thank you.

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Re: Simple RF Receiver issue

by adafruit_support_mike on Mon Jun 14, 2021 9:04 pm

D0.

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Re: Simple RF Receiver issue

by m_g on Wed Jun 16, 2021 7:33 pm

Thanks adafruit_support_mike

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Re: Simple RF Receiver issue

by Disciple on Fri Jun 18, 2021 9:26 am

m_g wrote:Which pin goes low when the A button is held down?

I bought a couple of these a while ago and they behave differently. When I press the A button, all of the signal pins stay low except for VT and D3. The numbered D# pins go high in response to the four key fob buttons in reverse order, so button D activates pin D0. Pin VT responds to any button. I thought that new receivers would still behave in the same way, but I might be wrong.

Hallelujah!
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