Hardware

02.12.2025

15:20 Helios Fehler #718 (Neu): Calculate voltage-divider for "Enable" MOSFETS

V_GS should be -10 and must not exceed -20V;
U2=(U/(R1+R2))*R2
R1=330
R2=470
[R1|R2]=193.875
Result=28.2; 0.... Maximilian Seesslen

15:17 Helios Feature #699 (Erledigt): Create test PCB for test RTC switching

Maximilian Seesslen

25.11.2025

11:30 Helios Fehler #716 (Neu): Driver board: No level shifter for I2C

Best solution would have been so use level shifter for I2C lines.
Maximilian Seesslen

11:26 Helios Fehler #715 (Neu): Check I2C pullups

According to Datasheet the INA228 supports 5,5V on I2C ( even VIN is 3V3? ).
But don't pullup I2C lines on driver bo... Maximilian Seesslen