Wiki source code of Power controller
Version 14.5 by Mathias Larsen on 2026/08/22 16:20
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14.2 | 1 | == Connector pinout == |
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6.2 | 2 | |
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14.2 | 3 | |=(% style="width: 658px;" %)Pin|=(% style="width: 205px;" %) |= |= |
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14.5 | 4 | |(% style="width:658px" %)1|(% style="width:205px" %)canH| | |
| 5 | |(% style="width:658px" %)2|(% style="width:205px" %)CANL| | | ||
| 6 | |(% style="width:658px" %)3|(% style="width:205px" %)FAN 1| | | ||
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6.2 | 44 | == Microcontroller Pinout == |
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11.1 | 46 | 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 |
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7.1 | 47 | |
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2.4 | 49 | |=Physical pin|=Electrical pin|=((( |
| 50 | Description | ||
| 51 | ))) | ||
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4.2 | 52 | |1|VBAT|Power source from a backup battery if a RTC would be used (Connected to +3V3 in this case) |
| 53 | |5|OSC_IN|Clock input (8MHz oscillator) | ||
| 54 | |7|NRST|Negative reset which can be connected to a button (Connected to +3V3) | ||
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7.2 | 55 | |8|PA0|Analog signal: Current 6 Supply 24V resserve |
| 56 | |9|PA1|Analog signal: Current 7 Supply 24V resserve | ||
| 57 | |10|PA2|Analog signal: Current 5 Supply sensor card | ||
| 58 | |11|PA3|Analog signal: Current 4 Supply front | ||
| 59 | |12|PA4|Analog signal: Current 3 Supply accumulator | ||
| 60 | |13|PA5|Analog signal: Current 2 Supply fans | ||
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7.3 | 61 | |14|PA6|Digital output LED 9 |
| 62 | |15|PA7|Digital output LED 2 | ||
| 63 | |16|PB0|Analog signal Current 8 Supply buzzer, brake light | ||
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8.1 | 64 | |17|PB1|PWM: enable Fan 1 |
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7.4 | 65 | |18|PB2|Input: V-sense |
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5.1 | 66 | |19|VSSA|Voltage source: Ground |
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9.1 | 67 | |20|VREF|Voltage reference (Internal voltage refferance) |
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5.1 | 68 | |21|VDDA|Voltage source: Power (+3V3) |
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7.4 | 69 | |22|PB10|Digital output: LED 8 |
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5.1 | 70 | |23|VSS|Voltage source: Ground |
| 71 | |24|VDD|Voltage source: Power (+3V3) | ||
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7.1 | 72 | |25|PB11|Current 1 Internal components |
| 73 | |26|PB12|Current 9 Supply 12 V Pumps inverter and datalogger | ||
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8.1 | 74 | |29|PB15|PWM: enable fan 2 |
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13.1 | 75 | |30|PA8|Digital output Enable buzzeer(On the car it is Brake light) |
| 76 | |31|PA9|((( | ||
| 77 | Digital output Enable brake light(On the car it is the buzzer) | ||
| 78 | ))) | ||
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7.4 | 79 | |32|PA10|Input ASMS signal |
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12.1 | 80 | |33|PA11|CAN-BUS RXD |
| 81 | |34|PA12|CAN-BUS TXD | ||
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5.1 | 82 | |35|VSS|Voltage source: Ground |
| 83 | |36|VDD|Voltage source: Power (+3V3) | ||
| 84 | |37|PA13|SWDIO | ||
| 85 | |38|PA14|SWCLK | ||
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9.2 | 86 | |40|PB3|Digital output: LED 3 |
| 87 | |41|PB4|Digital output: LED 4 | ||
| 88 | |42|PB5|Digital output: LED 5 | ||
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10.1 | 89 | |43|PB6|Digital output: Enable Pump 1 |
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9.2 | 90 | |44|PB7|Digital output: Enable Pump 2 |
| 91 | |45|PB8|Digital output: LED 6 | ||
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5.1 | 92 | |46|PB9|LED 7 |
| 93 | |47|VSS|Voltage source: Ground | ||
| 94 | |48|VDD|Voltage source: Power (+3V3) | ||
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2.1 | 95 | |
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14.1 | 96 | == Features to add == |
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| 98 | Add mosfets to cut power if the Lv battery is to low to save power |