Boards by KrHaaland

3 boards

Open-source boards designed in KiCad by KrHaaland on GitHub, from 2 repositories. A board’s address here is its repository’s there.

2 layers100 × 18.2 mm
Knappepanel flexit
KrHaaland/Flexit-Button-controller
ESP32-C5 button panel for the Flexit Tradition-S ventilation unit — 5 illuminated buttons emulated through opto-couplers, Wi-Fi 2.4/5 GHz, and MQTT for smart-home integration. Web UI for Wi-Fi and broker configuration.
26 parts1
2 layers80 × 50 mm
Samd51 gps alarm clock
KrHaaland/GNSS_Alarm_Clock
GNSS-synchronized alarm clock — custom SAMD51J20A board with nPM1300 Li-ion power (USB-C), offline timezone+DST from coordinates, LVGL 9 on a 428x142 TFT, WAV alarm tunes over USB, battery-backed RTC
162 parts
4 layers80 × 50 mm
GNSS Alarm Clock
KrHaaland/GNSS_Alarm_Clock
GNSS-synchronized alarm clock — custom SAMD51J20A board with nPM1300 Li-ion power (USB-C), offline timezone+DST from coordinates, LVGL 9 on a 428x142 TFT, WAV alarm tunes over USB, battery-backed RTC
157 parts

Knappepanel flexit