Receiving Garbage Over BLE UART When Using "SAADC UART Timer Driven Scan Mode"

[Liam]

I am working with the BL652 Module from Laird, and with Keil 5, using a ST Link SWD programmer clone.

I am using the ble_app_uart_timer_driven_scan_mode from the ADC examples on github: https://github.com/NordicPlayground/nRF52-ADC-examples

I can connect to the device using the nRF Uart v2.0 app, receive senseless data:

I am not sure what could be causing this. I did set the program to be scanning analog 0, 1, 2, 3, rather than what it was downloaded as. 

Could the baud rate be off? I believe the reference is correct, which is VDD (3.3 V). When I use a voltmeter, I am reading 0 volts on AIN1, 2, and 3, and ~ 1 V on AIN0.

Thank you for the help!

[Martin Lesund]

Hi Liam,

I have been informed that you will test this on the nRF52DK.

Please let me know your results.

Please check this thread for the solution of your issue.

 "The ADC values are not converted to a string before sent over NUS. If you want to display the values as a string, you have to convert it to a string before sending it. You can use sprintf() function or similar for this."

 

Best Regards,

Martin L.

[Liam]

This did it. Thank you!