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goebish / nrf24_multipro

nRF24L01 multi-protocol RC transmitter
GNU General Public License v3.0
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Rarely binding with CX-10 Blue PCB #24

Open heidtn opened 7 years ago

heidtn commented 7 years ago

I've managed to get my CX-10 to bind via nrf24l01 only at one point. It connected for a few times after the initial binding then I put it away. Took it out the next day and was no longer able to get it to bind.

I'm receiving data back from the quad that looks like this (in hex): AA, E3, 25, B1, AF, 20, D9, 32, 00, 00, 00, DC, 05, E8, 03, DC, 05, 11, 00, 00

As you can see the bind item is set to 0 no matter what I do. I receive this packet exactly once until I reset the arduino. Resetting the quad does not send further data. Any thoughts here?

The only change I've made is using the hardware SPI instead of the soft SPI, could that cause issues?

silver13 commented 7 years ago

check the CE pin of the nrf24 is set correctly just in case

heidtn commented 7 years ago

Triple checked. Same output. Thanks for the quick response!

silver13 commented 7 years ago

Is there any chance the nrf24 module was powered with over 3.6V? The rx part usually breaks first, and I had one which did exactly this, although others have broken in other ways too.

heidtn commented 7 years ago

Just checked with a multimeter, power is fine, but the pins (MOSI, MISO) are powered at 5V. Could that break it? It's weird that I'm getting a response from the quad though right?

silver13 commented 7 years ago

The non power pins are 5V tolerant, it would need 5V on the power pin to break.

Daniel-1276 commented 6 years ago

Same issue here with commercialy available tx module from Banggood. Multiple power cycles of my Taranis enables rebinding. No idea what's causing this.