Wiki source code of Power controller
Version 14.1 by Mathias Larsen on 2026/07/05 13:43
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| author | version | line-number | content |
|---|---|---|---|
| 1 | |||
| 2 | |||
| 3 | == Microcontroller Pinout == | ||
| 4 | |||
| 5 | The power controller uses a microcontroller to control the pumps, fans, buzzer, and brake light. It also features current monitoring and LED indicators. The Microcontroller used in this system is STM32G431CBT6 | ||
| 6 | |||
| 7 | |||
| 8 | |=Physical pin|=Electrical pin|=((( | ||
| 9 | Description | ||
| 10 | ))) | ||
| 11 | |1|VBAT|Power source from a backup battery if a RTC would be used (Connected to +3V3 in this case) | ||
| 12 | |5|OSC_IN|Clock input (8MHz oscillator) | ||
| 13 | |7|NRST|Negative reset which can be connected to a button (Connected to +3V3) | ||
| 14 | |8|PA0|Analog signal: Current 6 Supply 24V resserve | ||
| 15 | |9|PA1|Analog signal: Current 7 Supply 24V resserve | ||
| 16 | |10|PA2|Analog signal: Current 5 Supply sensor card | ||
| 17 | |11|PA3|Analog signal: Current 4 Supply front | ||
| 18 | |12|PA4|Analog signal: Current 3 Supply accumulator | ||
| 19 | |13|PA5|Analog signal: Current 2 Supply fans | ||
| 20 | |14|PA6|Digital output LED 9 | ||
| 21 | |15|PA7|Digital output LED 2 | ||
| 22 | |16|PB0|Analog signal Current 8 Supply buzzer, brake light | ||
| 23 | |17|PB1|PWM: enable Fan 1 | ||
| 24 | |18|PB2|Input: V-sense | ||
| 25 | |19|VSSA|Voltage source: Ground | ||
| 26 | |20|VREF|Voltage reference (Internal voltage refferance) | ||
| 27 | |21|VDDA|Voltage source: Power (+3V3) | ||
| 28 | |22|PB10|Digital output: LED 8 | ||
| 29 | |23|VSS|Voltage source: Ground | ||
| 30 | |24|VDD|Voltage source: Power (+3V3) | ||
| 31 | |25|PB11|Current 1 Internal components | ||
| 32 | |26|PB12|Current 9 Supply 12 V Pumps inverter and datalogger | ||
| 33 | |29|PB15|PWM: enable fan 2 | ||
| 34 | |30|PA8|Digital output Enable buzzeer(On the car it is Brake light) | ||
| 35 | |31|PA9|((( | ||
| 36 | Digital output Enable brake light(On the car it is the buzzer) | ||
| 37 | ))) | ||
| 38 | |32|PA10|Input ASMS signal | ||
| 39 | |33|PA11|CAN-BUS RXD | ||
| 40 | |34|PA12|CAN-BUS TXD | ||
| 41 | |35|VSS|Voltage source: Ground | ||
| 42 | |36|VDD|Voltage source: Power (+3V3) | ||
| 43 | |37|PA13|SWDIO | ||
| 44 | |38|PA14|SWCLK | ||
| 45 | |40|PB3|Digital output: LED 3 | ||
| 46 | |41|PB4|Digital output: LED 4 | ||
| 47 | |42|PB5|Digital output: LED 5 | ||
| 48 | |43|PB6|Digital output: Enable Pump 1 | ||
| 49 | |44|PB7|Digital output: Enable Pump 2 | ||
| 50 | |45|PB8|Digital output: LED 6 | ||
| 51 | |46|PB9|LED 7 | ||
| 52 | |47|VSS|Voltage source: Ground | ||
| 53 | |48|VDD|Voltage source: Power (+3V3) | ||
| 54 | |||
| 55 | == Features to add == | ||
| 56 | |||
| 57 | Add mosfets to cut power if the Lv battery is to low to save power |