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GPIO2 is not on pin 27 according to my reading of the link. It should be on pin 3. See also http://pinout.xyzandies wrote: GPIO 2 (PIN 27 according to https://www.raspberrypi.org/documentati ... nd-raspi2/)
Sorry for the misunderstanding. I connected Data tojoan wrote:GPIO 2 is connected to pin 3. Pin 27 is connected to GPIO 0.
No, but the distance is <1cm.joan wrote:Do you have an aerial attached to the receiver?
5 V.joan wrote:Are you powering the receiver from 3V3 or 5V?
No. Is this necessary?joan wrote:If 5V are you cutting the receiver output to a Pi safe 3V3?
Yes, I did. And: Thank you all!joan wrote: Have you connected the receiver ground to a Pi ground?
I doubt the GPIO is destroyed. Because something can happen doesn't mean it will.andies wrote:I will use the other GPIOs to check (I am using GPIO 27 currently). If one GPIO is destroyed, are the other still working?
This is the third receiver I am using.
I have no ideas. I'd expect the receiver to pick up a signal even if it's just static. I do have a 16 cm aerial soldered to my receivers and transmitters though.andies wrote:I have now put a complete new jessie light on my RPi3 with nothing on it except wiringPi: No result. Then I added PiScope (with all the dependencies) and connected the GPIOs with two different receivers. I do not get any result. I have two 433-utils (garage opener and shutters mover) - nothing happens in PiScope.
Does anyone have an idea where I get search for the error? Maybe buying an ardino? I have seen on the web that some people have used exactly the garage opener that I am using and were able to sniff the signal. Why do I see nothing at all?
The problem isn't noise per se, it's the absence of any signal, even noise.UK_Ham wrote:Noise could be coming from many sources - Wireless Sensor on Central Heating, Harmonic from cell phone, even the processor on a PC, If you have other wireless devices try switching them off and seeing if the signal goes away. Some old BT adaptors also cause the problem as do some routers
Not saying this is the cause but you can't be certain.