fancontroller/fancontroller.sch

EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title "A PC fan controller that doesn't (completely) suck"
Date "2021-04-25"
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L stm32g031f8-mcu_st_stm32g0:STM32G031F8-MCU_ST_STM32G0 U1
U 1 1 60DA6FFF
P 3400 4150
F 0 "U1" H 4450 4800 50  0000 C CNN
F 1 "STM32G031F8" H 4450 4700 50  0000 C CNN
F 2 "Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm" H 3400 4150 50  0001 C CNN
F 3 "" H 3400 4150 50  0001 C CNN
	1    3400 4150
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR03
U 1 1 60DA8EE8
P 3900 3500
F 0 "#PWR03" H 3900 3350 50  0001 C CNN
F 1 "+3V3" H 3915 3673 50  0000 C CNN
F 2 "" H 3900 3500 50  0001 C CNN
F 3 "" H 3900 3500 50  0001 C CNN
	1    3900 3500
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR04
U 1 1 60DA975A
P 3900 5100
F 0 "#PWR04" H 3900 4850 50  0001 C CNN
F 1 "GND" H 3905 4927 50  0000 C CNN
F 2 "" H 3900 5100 50  0001 C CNN
F 3 "" H 3900 5100 50  0001 C CNN
	1    3900 5100
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C2
U 1 1 60DAAAE6
P 2250 4250
F 0 "C2" H 2342 4296 50  0000 L CNN
F 1 "4.7µF" H 2342 4205 50  0000 L CNN
F 2 "" H 2250 4250 50  0001 C CNN
F 3 "~" H 2250 4250 50  0001 C CNN
	1    2250 4250
	1    0    0    -1  
$EndComp
Text GLabel 4900 3950 2    50   Input ~ 0
SWCLK
Text GLabel 4900 4050 2    50   BiDi ~ 0
SWDIO
Text GLabel 2900 4750 0    50   Input ~ 0
Rx
Text GLabel 2900 4650 0    50   Output ~ 0
Tx
Text GLabel 2900 4550 0    50   Output ~ 0
Control_Case2
Text GLabel 2900 4450 0    50   Output ~ 0
Control_Case1
$Comp
L Device:C_Small C1
U 1 1 60DAAEA6
P 2050 4250
F 0 "C1" H 1850 4300 50  0000 L CNN
F 1 "100nF" H 1700 4200 50  0000 L CNN
F 2 "" H 2050 4250 50  0001 C CNN
F 3 "~" H 2050 4250 50  0001 C CNN
	1    2050 4250
	1    0    0    -1  
$EndComp
Wire Wire Line
	3900 3500 2250 3500
Wire Wire Line
	2050 3500 2050 4150
Connection ~ 3900 3500
Wire Wire Line
	2050 4350 2050 5050
Wire Wire Line
	2050 5050 2250 5050
Connection ~ 3900 5050
Wire Wire Line
	2250 4350 2250 5050
Connection ~ 2250 5050
Wire Wire Line
	2250 5050 3900 5050
Wire Wire Line
	2250 4150 2250 3500
Connection ~ 2250 3500
Wire Wire Line
	2250 3500 2050 3500
$Comp
L Connector_Generic:Conn_02x03_Odd_Even J1
U 1 1 60DBB72D
P 2750 3050
F 0 "J1" H 2800 3367 50  0000 C CNN
F 1 "Dbg Header" H 2800 3276 50  0000 C CNN
F 2 "" H 2750 3050 50  0001 C CNN
F 3 "~" H 2750 3050 50  0001 C CNN
	1    2750 3050
	1    0    0    -1  
$EndComp
$Comp
L Regulator_Linear:MCP1700-3302E_TO92 U2
U 1 1 60DCAC22
P 8950 2050
F 0 "U2" H 8950 1808 50  0000 C CNN
F 1 "MCP1700-3302E" H 8950 1899 50  0000 C CNN
F 2 "Package_TO_SOT_THT:TO-92_Inline" H 8950 1850 50  0001 C CIN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/20001826D.pdf" H 8950 2050 50  0001 C CNN
	1    8950 2050
	-1   0    0    1   
$EndComp
$Comp
L power:+5V #PWR022
U 1 1 60DCF9FC
P 9450 2050
F 0 "#PWR022" H 9450 1900 50  0001 C CNN
F 1 "+5V" H 9465 2223 50  0000 C CNN
F 2 "" H 9450 2050 50  0001 C CNN
F 3 "" H 9450 2050 50  0001 C CNN
	1    9450 2050
	1    0    0    -1  
$EndComp
Wire Wire Line
	9450 2050 9250 2050
$Comp
L power:+3V3 #PWR018
U 1 1 60DD0622
P 8450 2050
F 0 "#PWR018" H 8450 1900 50  0001 C CNN
F 1 "+3V3" H 8465 2223 50  0000 C CNN
F 2 "" H 8450 2050 50  0001 C CNN
F 3 "" H 8450 2050 50  0001 C CNN
	1    8450 2050
	1    0    0    -1  
$EndComp
Wire Wire Line
	8650 2050 8450 2050
$Comp
L power:GND #PWR021
U 1 1 60DD390D
P 8950 2350
F 0 "#PWR021" H 8950 2100 50  0001 C CNN
F 1 "GND" H 8955 2177 50  0000 C CNN
F 2 "" H 8950 2350 50  0001 C CNN
F 3 "" H 8950 2350 50  0001 C CNN
	1    8950 2350
	1    0    0    -1  
$EndComp
NoConn ~ 2900 3850
NoConn ~ 2900 3950
NoConn ~ 2900 4050
NoConn ~ 2900 4350
NoConn ~ 4900 4150
NoConn ~ 4900 4250
NoConn ~ 4900 4350
Text GLabel 3050 3050 2    50   BiDi ~ 0
SWDIO
Text GLabel 2550 3050 0    50   Input ~ 0
SWCLK
$Comp
L power:+3V3 #PWR01
U 1 1 60E6284A
P 2400 2950
F 0 "#PWR01" H 2400 2800 50  0001 C CNN
F 1 "+3V3" H 2415 3123 50  0000 C CNN
F 2 "" H 2400 2950 50  0001 C CNN
F 3 "" H 2400 2950 50  0001 C CNN
	1    2400 2950
	1    0    0    -1  
$EndComp
Text GLabel 3050 3150 2    50   Input ~ 0
Rx
Text GLabel 2550 3150 0    50   Output ~ 0
Tx
Wire Wire Line
	2400 2950 2550 2950
$Comp
L power:GND #PWR02
U 1 1 60E7DBF6
P 3550 2950
F 0 "#PWR02" H 3550 2700 50  0001 C CNN
F 1 "GND" H 3555 2777 50  0000 C CNN
F 2 "" H 3550 2950 50  0001 C CNN
F 3 "" H 3550 2950 50  0001 C CNN
	1    3550 2950
	1    0    0    -1  
$EndComp
Wire Wire Line
	3050 2950 3550 2950
Text GLabel 4900 4450 2    50   Input ~ 0
Tach_GPU
Text GLabel 4900 4550 2    50   Input ~ 0
Tach_CPU
Text GLabel 4900 4650 2    50   Input ~ 0
Tach_Case2
Text GLabel 4900 4750 2    50   Input ~ 0
Tach_Case1
$Comp
L Device:R_Small R1
U 1 1 60EE221B
P 5400 4000
F 0 "R1" H 5459 4046 50  0000 L CNN
F 1 "internal" H 5459 3955 50  0000 L CNN
F 2 "" H 5400 4000 50  0001 C CNN
F 3 "~" H 5400 4000 50  0001 C CNN
	1    5400 4000
	1    0    0    -1  
$EndComp
Wire Wire Line
	4900 3850 5400 3850
$Comp
L power:GND #PWR05
U 1 1 60EE38A0
P 5400 4100
F 0 "#PWR05" H 5400 3850 50  0001 C CNN
F 1 "GND" H 5405 3927 50  0000 C CNN
F 2 "" H 5400 4100 50  0001 C CNN
F 3 "" H 5400 4100 50  0001 C CNN
	1    5400 4100
	1    0    0    -1  
$EndComp
Connection ~ 5400 3850
$Comp
L Jumper:Jumper_2_Bridged JP1
U 1 1 60EF0FB5
P 5400 3550
F 0 "JP1" H 5400 3745 50  0000 C CNN
F 1 "Jumper" H 5400 3654 50  0000 C CNN
F 2 "" H 5400 3550 50  0001 C CNN
F 3 "~" H 5400 3550 50  0001 C CNN
	1    5400 3550
	0    -1   -1   0   
$EndComp
$Comp
L power:+3V3 #PWR06
U 1 1 60EF4753
P 5400 3250
F 0 "#PWR06" H 5400 3100 50  0001 C CNN
F 1 "+3V3" H 5415 3423 50  0000 C CNN
F 2 "" H 5400 3250 50  0001 C CNN
F 3 "" H 5400 3250 50  0001 C CNN
	1    5400 3250
	1    0    0    -1  
$EndComp
Wire Wire Line
	5400 3850 5400 3900
$Comp
L Connector_Generic:Conn_01x04 J6
U 1 1 60D8ABE0
P 7900 4850
F 0 "J6" H 7850 4400 50  0000 L CNN
F 1 "Case Fan 1" H 7700 4500 50  0000 L CNN
F 2 "" H 7900 4850 50  0001 C CNN
F 3 "~" H 7900 4850 50  0001 C CNN
	1    7900 4850
	-1   0    0    1   
$EndComp
$Comp
L Connector_Generic:Conn_01x02 J2
U 1 1 60D8ABF5
P 6300 3850
F 0 "J2" H 6300 3500 50  0000 C CNN
F 1 "GPU In" H 6300 3600 50  0000 C CNN
F 2 "" H 6300 3850 50  0001 C CNN
F 3 "~" H 6300 3850 50  0001 C CNN
	1    6300 3850
	-1   0    0    1   
$EndComp
Text GLabel 8100 4650 2    50   Input ~ 0
Control_Case1
$Comp
L Device:R_Small R5
U 1 1 60DA6930
P 9000 4550
F 0 "R5" H 9059 4596 50  0000 L CNN
F 1 "10k" H 9059 4505 50  0000 L CNN
F 2 "" H 9000 4550 50  0001 C CNN
F 3 "~" H 9000 4550 50  0001 C CNN
	1    9000 4550
	1    0    0    -1  
$EndComp
Wire Wire Line
	8100 4750 9000 4750
$Comp
L power:+3V3 #PWR020
U 1 1 60DA9398
P 9000 4450
F 0 "#PWR020" H 9000 4300 50  0001 C CNN
F 1 "+3V3" H 9015 4623 50  0000 C CNN
F 2 "" H 9000 4450 50  0001 C CNN
F 3 "" H 9000 4450 50  0001 C CNN
	1    9000 4450
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C3
U 1 1 60DAB1BE
P 6850 4950
F 0 "C3" H 6758 4904 50  0000 R CNN
F 1 "15nF" H 6758 4995 50  0000 R CNN
F 2 "" H 6850 4950 50  0001 C CNN
F 3 "~" H 6850 4950 50  0001 C CNN
	1    6850 4950
	-1   0    0    1   
$EndComp
Wire Wire Line
	9000 4650 9000 4750
Connection ~ 9000 4750
Text GLabel 9300 4750 2    50   Output ~ 0
Tach_Case1
$Comp
L Device:D_Small D2
U 1 1 60DBBBC9
P 8200 4950
F 0 "D2" H 8200 5157 50  0000 C CNN
F 1 "1N4148" H 8200 5066 50  0000 C CNN
F 2 "" V 8200 4950 50  0001 C CNN
F 3 "~" V 8200 4950 50  0001 C CNN
	1    8200 4950
	-1   0    0    1   
$EndComp
$Comp
L power:GND #PWR015
U 1 1 60DBCEF7
P 8500 5000
F 0 "#PWR015" H 8500 4750 50  0001 C CNN
F 1 "GND" H 8505 4827 50  0000 C CNN
F 2 "" H 8500 5000 50  0001 C CNN
F 3 "" H 8500 5000 50  0001 C CNN
	1    8500 5000
	1    0    0    -1  
$EndComp
$Comp
L power:+12V #PWR017
U 1 1 60DC51B1
P 8750 4450
F 0 "#PWR017" H 8750 4300 50  0001 C CNN
F 1 "+12V" H 8765 4623 50  0000 C CNN
F 2 "" H 8750 4450 50  0001 C CNN
F 3 "" H 8750 4450 50  0001 C CNN
	1    8750 4450
	1    0    0    -1  
$EndComp
Wire Wire Line
	8100 4850 8750 4850
Wire Wire Line
	8750 4850 8750 4450
Wire Wire Line
	8300 4950 8500 4950
Wire Wire Line
	9000 4750 9300 4750
$Comp
L Connector_Generic:Conn_01x04 J5
U 1 1 60DE61A0
P 7900 3750
F 0 "J5" H 7850 3300 50  0000 L CNN
F 1 "Case Fan 2" H 7700 3400 50  0000 L CNN
F 2 "" H 7900 3750 50  0001 C CNN
F 3 "~" H 7900 3750 50  0001 C CNN
	1    7900 3750
	-1   0    0    1   
$EndComp
Text GLabel 8100 3550 2    50   Input ~ 0
Control_Case2
$Comp
L Device:R_Small R4
U 1 1 60DE61A7
P 9000 3450
F 0 "R4" H 9059 3496 50  0000 L CNN
F 1 "10k" H 9059 3405 50  0000 L CNN
F 2 "" H 9000 3450 50  0001 C CNN
F 3 "~" H 9000 3450 50  0001 C CNN
	1    9000 3450
	1    0    0    -1  
$EndComp
Wire Wire Line
	8100 3650 9000 3650
$Comp
L power:+3V3 #PWR019
U 1 1 60DE61AE
P 9000 3350
F 0 "#PWR019" H 9000 3200 50  0001 C CNN
F 1 "+3V3" H 9015 3523 50  0000 C CNN
F 2 "" H 9000 3350 50  0001 C CNN
F 3 "" H 9000 3350 50  0001 C CNN
	1    9000 3350
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C4
U 1 1 60DE61B4
P 9000 3750
F 0 "C4" H 8908 3704 50  0000 R CNN
F 1 "15nF" H 8908 3795 50  0000 R CNN
F 2 "" H 9000 3750 50  0001 C CNN
F 3 "~" H 9000 3750 50  0001 C CNN
	1    9000 3750
	-1   0    0    1   
$EndComp
Wire Wire Line
	9000 3550 9000 3650
Connection ~ 9000 3650
Text GLabel 9300 3650 2    50   Output ~ 0
Tach_Case2
$Comp
L Device:D_Small D1
U 1 1 60DE61BD
P 8200 3850
F 0 "D1" H 8200 4057 50  0000 C CNN
F 1 "1N4148" H 8200 3966 50  0000 C CNN
F 2 "" V 8200 3850 50  0001 C CNN
F 3 "~" V 8200 3850 50  0001 C CNN
	1    8200 3850
	-1   0    0    1   
$EndComp
$Comp
L power:GND #PWR014
U 1 1 60DE61C3
P 8500 3900
F 0 "#PWR014" H 8500 3650 50  0001 C CNN
F 1 "GND" H 8505 3727 50  0000 C CNN
F 2 "" H 8500 3900 50  0001 C CNN
F 3 "" H 8500 3900 50  0001 C CNN
	1    8500 3900
	1    0    0    -1  
$EndComp
$Comp
L power:+12V #PWR016
U 1 1 60DE61C9
P 8750 3350
F 0 "#PWR016" H 8750 3200 50  0001 C CNN
F 1 "+12V" H 8765 3523 50  0000 C CNN
F 2 "" H 8750 3350 50  0001 C CNN
F 3 "" H 8750 3350 50  0001 C CNN
	1    8750 3350
	1    0    0    -1  
$EndComp
Wire Wire Line
	8100 3750 8750 3750
Wire Wire Line
	8750 3750 8750 3350
Wire Wire Line
	8300 3850 8500 3850
Wire Wire Line
	8500 3850 9000 3850
Connection ~ 8500 3850
Wire Wire Line
	9000 3650 9300 3650
Wire Wire Line
	8500 4950 8500 5000
Wire Wire Line
	8500 3850 8500 3900
$Comp
L Device:R_Small R2
U 1 1 60E31FC0
P 6850 3550
F 0 "R2" H 6909 3596 50  0000 L CNN
F 1 "10k" H 6909 3505 50  0000 L CNN
F 2 "" H 6850 3550 50  0001 C CNN
F 3 "~" H 6850 3550 50  0001 C CNN
	1    6850 3550
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR09
U 1 1 60E34A71
P 6850 3450
F 0 "#PWR09" H 6850 3300 50  0001 C CNN
F 1 "+3V3" H 6865 3623 50  0000 C CNN
F 2 "" H 6850 3450 50  0001 C CNN
F 3 "" H 6850 3450 50  0001 C CNN
	1    6850 3450
	1    0    0    -1  
$EndComp
Text GLabel 7100 3750 2    50   Output ~ 0
Tach_GPU
$Comp
L Device:R_Small R3
U 1 1 60E4EEDF
P 6850 4650
F 0 "R3" H 6909 4696 50  0000 L CNN
F 1 "10k" H 6909 4605 50  0000 L CNN
F 2 "" H 6850 4650 50  0001 C CNN
F 3 "~" H 6850 4650 50  0001 C CNN
	1    6850 4650
	1    0    0    -1  
$EndComp
Wire Wire Line
	6500 4850 6850 4850
$Comp
L power:+3V3 #PWR010
U 1 1 60E4EEE6
P 6850 4550
F 0 "#PWR010" H 6850 4400 50  0001 C CNN
F 1 "+3V3" H 6865 4723 50  0000 C CNN
F 2 "" H 6850 4550 50  0001 C CNN
F 3 "" H 6850 4550 50  0001 C CNN
	1    6850 4550
	1    0    0    -1  
$EndComp
Text GLabel 7100 4850 2    50   Output ~ 0
Tach_CPU
Wire Wire Line
	6850 4850 7100 4850
Connection ~ 6850 4850
$Comp
L Connector_Generic:Conn_01x02 J3
U 1 1 60E4EED9
P 6300 4950
F 0 "J3" H 6300 4600 50  0000 C CNN
F 1 "CPU In" H 6300 4700 50  0000 C CNN
F 2 "" H 6300 4950 50  0001 C CNN
F 3 "~" H 6300 4950 50  0001 C CNN
	1    6300 4950
	-1   0    0    1   
$EndComp
$Comp
L power:GND #PWR08
U 1 1 60E4EEEF
P 6500 5050
F 0 "#PWR08" H 6500 4800 50  0001 C CNN
F 1 "GND" H 6505 4877 50  0000 C CNN
F 2 "" H 6500 5050 50  0001 C CNN
F 3 "" H 6500 5050 50  0001 C CNN
	1    6500 5050
	1    0    0    -1  
$EndComp
Wire Wire Line
	6500 3850 6500 3900
$Comp
L power:GND #PWR07
U 1 1 60E42A45
P 6500 3900
F 0 "#PWR07" H 6500 3650 50  0001 C CNN
F 1 "GND" H 6505 3727 50  0000 C CNN
F 2 "" H 6500 3900 50  0001 C CNN
F 3 "" H 6500 3900 50  0001 C CNN
	1    6500 3900
	1    0    0    -1  
$EndComp
Wire Wire Line
	6850 5050 6500 5050
Wire Wire Line
	6850 4750 6850 4850
Wire Wire Line
	6500 3750 6850 3750
Wire Wire Line
	6850 3650 6850 3750
Connection ~ 6850 3750
Wire Wire Line
	6850 3750 7100 3750
$Comp
L Connector_Generic:Conn_01x04 J4
U 1 1 60DB3615
P 7450 2200
F 0 "J4" H 7700 2100 50  0000 C CNN
F 1 "Power In" H 7550 2200 50  0000 L CNN
F 2 "" H 7450 2200 50  0001 C CNN
F 3 "~" H 7450 2200 50  0001 C CNN
	1    7450 2200
	-1   0    0    1   
$EndComp
$Comp
L power:+12V #PWR013
U 1 1 60DB43E7
P 8000 2300
F 0 "#PWR013" H 8000 2150 50  0001 C CNN
F 1 "+12V" H 8015 2473 50  0000 C CNN
F 2 "" H 8000 2300 50  0001 C CNN
F 3 "" H 8000 2300 50  0001 C CNN
	1    8000 2300
	1    0    0    -1  
$EndComp
Wire Wire Line
	7650 2300 8000 2300
$Comp
L power:+5V #PWR012
U 1 1 60DB5C23
P 8000 2000
F 0 "#PWR012" H 8000 1850 50  0001 C CNN
F 1 "+5V" H 8015 2173 50  0000 C CNN
F 2 "" H 8000 2000 50  0001 C CNN
F 3 "" H 8000 2000 50  0001 C CNN
	1    8000 2000
	1    0    0    -1  
$EndComp
Wire Wire Line
	7650 2000 8000 2000
$Comp
L power:GND #PWR011
U 1 1 60DB744F
P 7700 2400
F 0 "#PWR011" H 7700 2150 50  0001 C CNN
F 1 "GND" H 7705 2227 50  0000 C CNN
F 2 "" H 7700 2400 50  0001 C CNN
F 3 "" H 7700 2400 50  0001 C CNN
	1    7700 2400
	1    0    0    -1  
$EndComp
Wire Wire Line
	7650 2100 7700 2100
Wire Wire Line
	7700 2100 7700 2200
Wire Wire Line
	7650 2200 7700 2200
Connection ~ 7700 2200
Wire Wire Line
	7700 2200 7700 2400
Wire Wire Line
	6500 4950 6500 5050
Connection ~ 6500 5050
Wire Wire Line
	5400 3750 5400 3850
Wire Wire Line
	5400 3250 5400 3350
Wire Wire Line
	3900 5050 3900 5100
$EndSCHEMATC