MMBasic V6.03.00 release candidates


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homa

Guru

Joined: 05/11/2021
Location: Germany
Posts: 625
Posted: 07:01pm 05 May 2026      

  matherp said  I know nothing about the STM32 RTC on the PicoCalc or even whether it can be accessed. You can control the backlight on both the keyboard and the screen using OPTION BACKLIGHT LCD and OPTION BACKLIGHT KBD


Thanks — the 'OPTION BACKLIGHT LCD' setting works!
Can I also read the current value?
I'm also missing the screensaver option: 'OPTION BACKLIGHT LCD 0' –-> backlight off.
I always use that to activate 'power-saving mode', where the backlight reactivates when a key is pressed or there is activity.

This also works with the keyboard! (=0) :-)

I don't know if the AI (Gemini & Claude) is just making things up, but this is what I managed to get out of it.

https://github.com/shtirlic/picocalc_southbridge
- internal RTC access through dedicated I2C registers,

Apparently, this is also supposed to be included in BIOS 1.6? But to be honest, I don't really know any more than that.