- Wed Aug 01, 2012 1:40 pm
#148097
Hello all,
I've got an arduino-based master-slave setup logging data across an RF link using the sparkfun nrf24l01+ modules (https://www.sparkfun.com/products/691). I'm using maniacbug's RF24 library (http://maniacbug.github.com/RF24/) to drive the radios and it's all been working very well for days.
A couple of weeks ago the link went down for no apparent reason and it seemed that one of the nRF24l01+ modules was dead. Fortunately I had another one (RP-SMA version) lying around so I swapped it in and everything was back to normal.
This morning I noticed that my link was down again and it appears that a second module has died. I'm starting to wonder what's going on here and I don't have an unlimited supply of these modules to keep swapping them in. Fortunately I had just ordered a few equivalent nrf modules from iteadstudio and the link is back up and running now that I have swapped one of them in.
Could there be something about my software/hardware setup that could be causing these modules to fail? Is this just chance or bad luck? They are running 5v from the arduino rail (arduino is powered from an AC adapter, so supply should be pretty steady) and there isn't anything else on the SPI bus. Two dead units within a couple of weeks seems pretty suspect to me and I'm worried I'm doing something wrong here.
Thanks in advance for any ideas, suggestions or solutions you might have!
ps. I'm able to identify the 'dead' one each time using the RF24 pingpair example on a separate breadboard... with the faulty unit in place the registers all seem to read correctly but it fails to send or receive packets. Swap in a fresh module and it's happy again.
I've got an arduino-based master-slave setup logging data across an RF link using the sparkfun nrf24l01+ modules (https://www.sparkfun.com/products/691). I'm using maniacbug's RF24 library (http://maniacbug.github.com/RF24/) to drive the radios and it's all been working very well for days.
A couple of weeks ago the link went down for no apparent reason and it seemed that one of the nRF24l01+ modules was dead. Fortunately I had another one (RP-SMA version) lying around so I swapped it in and everything was back to normal.
This morning I noticed that my link was down again and it appears that a second module has died. I'm starting to wonder what's going on here and I don't have an unlimited supply of these modules to keep swapping them in. Fortunately I had just ordered a few equivalent nrf modules from iteadstudio and the link is back up and running now that I have swapped one of them in.
Could there be something about my software/hardware setup that could be causing these modules to fail? Is this just chance or bad luck? They are running 5v from the arduino rail (arduino is powered from an AC adapter, so supply should be pretty steady) and there isn't anything else on the SPI bus. Two dead units within a couple of weeks seems pretty suspect to me and I'm worried I'm doing something wrong here.
Thanks in advance for any ideas, suggestions or solutions you might have!
ps. I'm able to identify the 'dead' one each time using the RF24 pingpair example on a separate breadboard... with the faulty unit in place the registers all seem to read correctly but it fails to send or receive packets. Swap in a fresh module and it's happy again.