Achieve live variable monitoring with ESP32-DevKitC-32UE

akhan@eleappower.com
Posts: 4
Joined: Fri Aug 22, 2025 6:05 pm

Achieve live variable monitoring with ESP32-DevKitC-32UE

Postby akhan@eleappower.com » Fri Dec 05, 2025 4:38 pm

I have a ESP32-DevKitC-32UE and would like to achieve some sort of live variable monitor while testing. I have a ESP-PROG debugger and was hoping to use this as a way to view variables while running my project (consists of ADC, SPI, CAN, and WIFI ethernet respectively) without pausing. I see there is an application tracing library that could help with this but wanted to get any opinions on this. Also if there are existing forum posts that dealt with this already please point to them I didn't see any exactly that answers my question.

lichurbagan
Posts: 60
Joined: Thu Nov 13, 2025 3:20 pm

Re: Achieve live variable monitoring with ESP32-DevKitC-32UE

Postby lichurbagan » Sat Dec 06, 2025 3:52 pm

If you want real-time, low-overhead streaming of variables and RTOS events, use ESP-IDF Application Level Tracing (apptrace) to stream data off the target, then view it with a tool such as SEGGER SystemView or Percepio Tracealyzer. Apptrace supports JTAG and UART backends and is built into ESP-IDF.
https://docs.espressif.com/projects/esp ... trace.html

lbernstone
Posts: 1132
Joined: Mon Jul 22, 2019 3:20 pm

Re: Achieve live variable monitoring with ESP32-DevKitC-32UE

Postby lbernstone » Sun Dec 07, 2025 1:20 am

It looks to me like there are lots of tutorials on Youtube. Maybe even something in your native language.

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