https://devzone.nordicsemi.com/f/nordic-q-a/4665/what-is-simplest-implementation-to-rx-tx-nrf-uartI am developing a platform using C8051F931, MPU9150 and nRF8001. I have re-written the hal code to target the C8051F931 and verified it using the ACI demo test (the echo test). Since I purchased the SDK from Nordic, I have access to the software withen-USTelligent Community 13Sat, 06 Dec 2014 21:47:58 GMThttps://devzone.nordicsemi.com/thread/16556?ContentTypeID=1Sat, 06 Dec 2014 21:47:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b1f6bf20-95fa-46de-a3f1-08509fc2d49bdoug12ax7<p>Thanks for all the help! Your silence has kept my mind clear and thus solved this one by myself. I found that &quot;hello world&quot; arduino code (somewhere??) and cleaned it up for the F931 part. It was no small feat, but I made it work. There is a huge amount of code in that example that I removed (to make compiling a little more manageable. Now that I have it talking to the iphone, I will work on a deeper understanding of the little monster. BTW, my Samsung S3 would not talk to this thing. The iPhone 4s worked fine.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/16555?ContentTypeID=1Wed, 03 Dec 2014 00:11:06 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4e07436e-0591-4b7d-b5af-b6a19b514992doug12ax7<p>Didn&#39;t know Norway had crickets.</p><div style="clear:both;"></div>