If you have Rev. 2 of the FSCOPE board please see FSCOPE-250K-Rev2
There will be some unpopulated holes/pads on your board. Depending on your board revision these may include:
These are tiny prototyping areas. One hole is connected to GND. The others are not connected to anything.
Extra current limiting resistors for the Wi-Fi and Trigger LEDS. Add resistors here (and possibly remove R30/R31) to adjust LED brightness.
Test point for the -2.5V rail. Do not draw current from this rail as it will adversely affect the performance of the oscilloscope.
Shorting these will restart the Pico (W). A momentary switch could be soldered to these holes/pads to make it easier to restart the oscilloscope.
H7, H15, R35, R36
For connecting external Wi-Fi and Trigger LEDS if the board is to be enclosed in a case.
For connecting an external status LED if the board is to be enclosed in a case (no firmware support for this as yet).