Can not reliably send signal with nRF24L01+ (Magic Fingers)

Projects Networking, Protocols, and Devices
3

Thanks for the reply!

  1. An ultrasonic sensor, some LEDs and another sensor. I unplugged it all for testing.
  2. I tried my PC, a high power USB wall plug and a lithium cell (well, it's an 5V Pro Mini...)
  3. Basically this:Click, but the power is supplied by the voltage regulator. I could send you a photo but... how do i put it... i was very space efficient.
  4. It's exactly this one: Click
  5. Yeah well... somebody from China accidentally sent 5 of them to me :wink:

Fact is that they work... but why the one on the Arduino suddenly has trouble sending is the question.

I switched to a 10 uF capacitor and put it further away from the antenna but that did not help. Then i put my smallest one (3.3 uF) in parallel but still no success. Without a capacitor the module does not work at all.

Tomorrow i'll try to power the Arduino via RAW and use the build in 3,3V voltage regulator so i can skip the linear voltage regulator. I avoided this because my programmer supplies 5V to the VCC directly. Also i did not think enough about this.