I did a quick check for calibration and could not find it
![Confused :-//](https://www.eevblog.com/forum/Smileys/default/confused0024.gif)
I don't see the source code- there is main.c and main.h and missing includes in the repo:
#include "../fs2011pro/buzzer.h"
#include "../fs2011pro/display.h"
#include "../fs2011pro/events.h"
#include "../fs2011pro/game.h"
#include "../fs2011pro/keyboard.h"
#include "../fs2011pro/measurements.h"
#include "../fs2011pro/power.h"
#include "../fs2011pro/settings.h"
#include "../fs2011pro/sim.h"
#include "../fs2011pro/menus.h"
#include "../fs2011pro/ui.h"
What a terrible PCB layout, who glues/puts the tube on top on the MCU, right next to the crystal? I always put parts with 500VDC on them there...
There's no schematic available for these?
![ThumbsDown :--](https://www.eevblog.com/forum/Smileys/default/icon_thumbsdown.gif)