Detect Low Battery - illuminate LED

Wireless Connectivity Ultra-Wideband
1

I’m using the DWM3001CDK UWB module and the “USB_Workaround_DWM3001CDK-DW3QM33_SDK_CLI-FreeRTOS.hex” from @akash on his tutorial on operating the module from a USB battery power bank.

My question is how can I monitor the battery voltage and illuminate one of the LEDS (D9, D12, D11) when the battery reaches a low voltage state.
Note it appears D10 is already used when plugging into a PC, so I thought the other 3 LEDs may be free?

Does the Qorvo DWM3001C have an ADC that is available to do this?
Is the DWM3001CDK board already wired to monitor voltage somewhere?
Looking at the Schematic in the “Qovro_7/7/2022_DWM3001CDK_Quick_Start_Guide-2998998.pdf” I didn’t see any ADC shown on the IC pinout?

Indicating a low battery status to the user is a must-have feature.
So any help I could get on coming up with a solution would be greatly appreciated.

Regards,
Clint

2

Hi @Clint,

As the DWM3001C has a nRF52833 inside, your question is more a question about the capability of the Nordic chip. You can reference the examples from the Nordic SDK on how to use the ADC for battery voltage monitoring and if you have further questions on that topic, I would suggest to utilize the Nordic forum.