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Changes for page Power controller

Last modified by Mathias Larsen on 2026/09/24 21:21
From version 13.1
edited by Mathias Larsen
on 2026/06/17 16:23
Change comment: There is no comment for this version
To version 4.1
edited by Mathias Larsen
on 2026/05/24 17:46
Change comment: There is no comment for this version

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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 8  |=Physical pin|=Electrical pin|=(((
9 9  Description
10 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)
4 +|1|VBAT|
5 +|5|OSC_IN|
6 +|7|NRST|
7 +|8|PA0|
8 +|9|PA1|
9 +|10|PA2|
10 +|11|PA3|
11 +|12|PA4|
12 +|13|PA5|
13 +|14|PA6|
14 +|15|PA7|
15 +|16|PB0|
16 +|17|PB1|
17 +|18|PB2|
18 +|19|VSSA|
19 +|20|VREF|
20 +|21|VDDA|
21 +|22|PB10|
22 +|23|VSS|
23 +|24|VDD|
24 +|25|PB11|
25 +|26|PB12|
26 +|29|PB15|
27 +|30|PA8|
28 +|31|PA9|
29 +|32|PA10|
30 +|33|PA11|
31 +|34|PA12|
32 +|35|VSS|
33 +|36|VDD|
34 +|37|PA13|
35 +|38|PA14|
36 +|40|PB3|
37 +|41|PB4|
38 +|42|PB5|
39 +|43|PB6|
40 +|44|PB7|
41 +|45|PB8|
42 +|46|PB9|
43 +|47|VSS|
44 +|48|VDD|
54 54  
55 55