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Topic: RCSwitch (Read 82 times) previous topic - next topic

adivacaru

Hello,

I have been trying to decode a some 433 mhz remotes with the rcswitch library. i have tried several remotes with the receivedemo advanced sketch. Nothing worked.

i have this module :
http://www.ebay.de/itm/201802907446?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT


and have been using these 2 remotes plus the one from my garage gate.

https://www.amazon.de/gp/product/B00WI2G49E/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

https://www.amazon.de/gp/product/B00WI2GL6K/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1


i connected the data pin to d2 pin from an arduino nano.



i looked on the osciloscope at the data pin. when i'm not transmitting the line is full of noise.

I have attached some pictures from the signal.

Maybe somebody can give me some suggestions on what i am doing wrong. Any help would be much appreciated.



uxomm

#1
Apr 21, 2017, 01:38 am Last Edit: Apr 21, 2017, 03:10 am by uxomm
I have used 433 transmitters / receivers with several projects.
RC-Switch worked pretty often with my wireless remote controlled outlet switches, wireless doorbells and more. But now and then RC-Switch did not work with the protocol of some device.
I have no idea if the devices you want to use will work with RC-Switch.
But the first step is to get a stable signal from the receiver.
Here are some ideas:
- Use an antenna with your receiver. A straight wire, about 17,4 cm is fine.
- Do not place the receiver too close to your computer or monitor. A distance of 0,5 to 1 meter is fine.
- Do not place the transmitter too close to the receiver when testing. 0,5 to 1 meter is fine.
Noise may depend on your environment. If you live in an urban area there may be much noise from other 433 MHz devices from your neighborhood.

(Just a hint, as you posted all links in German language: there is also a German language part of this forum: http://forum.arduino.cc/index.php?board=31.0)
Always decouple electronic circuitry.

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