How to connect to the test points on WIFI board

Official Hardware UNO Family UNO R4 WiFi
3

Thanks Juraj,

Part of this is curiosity, like the cheat sheet mentions the pads:
[Arduino UNO R4 WiFi Cheat Sheet | Arduino Documentation]

Arduino UNO R4 WiFi Cheat Sheet | Arduino Documentation

shows these pads
ESP32-pads.png (1920×1080) (arduino.cc)

But more specifically, two reasons I am wanting to see these signals are:

  1. I am testing reasonably extensive changes to the SerialX(UART) code on the main processor, and as part of my testing, I want to make sure BT and WIFI work. My first try of the BT Scan module failed yesterday to initialize the adapter. So I want to debug that. Today will try simple Wifi one to see if that one starts.
    Details about the changes are in the draft Pull Request
    Serial: Tx use FIFO plus fixes by KurtE · Pull Request #90 · arduino/ArduinoCore-renesas (github.com)

  2. I am curious about the issue described in:
    UNO R4 WiFi disconnecting/reconnecting continuously when running sketch w/ "LED_Matrix" and "ArduinoBLE" libraries - UNO R4 / UNO R4 WiFi - Arduino Forum
    So hoped maybe seeing the communications between the two processors and timing of the Matrix interrupts, might shed some light on it. Like are all of the interrupts causing something like RX overruns? Can possibly test that out without seeing the signals but might help to shed more light.