keyboard-pcb-tutorial.sch

EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L MCU_Microchip_ATmega:ATmega32U4-AU U1
U 1 1 60DDBFE5
P 5200 3550
F 0 "U1" H 5200 1661 50  0000 C CNN
F 1 "ATmega32U4-AU" H 5200 1570 50  0000 C CNN
F 2 "Package_QFP:TQFP-44_10x10mm_P0.8mm" H 5200 3550 50  0001 C CIN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-7766-8-bit-AVR-ATmega16U4-32U4_Datasheet.pdf" H 5200 3550 50  0001 C CNN
	1    5200 3550
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR04
U 1 1 60DDDD89
P 5100 1500
F 0 "#PWR04" H 5100 1350 50  0001 C CNN
F 1 "+5V" H 5115 1673 50  0000 C CNN
F 2 "" H 5100 1500 50  0001 C CNN
F 3 "" H 5100 1500 50  0001 C CNN
	1    5100 1500
	1    0    0    -1  
$EndComp
Wire Wire Line
	5100 1500 5100 1750
Wire Wire Line
	5200 1750 5100 1750
Connection ~ 5100 1750
Wire Wire Line
	5300 1750 5200 1750
Connection ~ 5200 1750
$Comp
L power:GND #PWR013
U 1 1 60DDEF55
P 4700 5500
F 0 "#PWR013" H 4700 5250 50  0001 C CNN
F 1 "GND" H 4705 5327 50  0000 C CNN
F 2 "" H 4700 5500 50  0001 C CNN
F 3 "" H 4700 5500 50  0001 C CNN
	1    4700 5500
	1    0    0    -1  
$EndComp
Wire Wire Line
	5200 5350 5100 5350
Wire Wire Line
	5100 5350 4700 5350
Wire Wire Line
	4700 5350 4700 5500
Connection ~ 5100 5350
$Comp
L Device:R_Small R4
U 1 1 60DDFCA7
P 6600 4150
F 0 "R4" V 6404 4150 50  0000 C CNN
F 1 "10k" V 6495 4150 50  0000 C CNN
F 2 "Resistor_SMD:R_0805_2012Metric" H 6600 4150 50  0001 C CNN
F 3 "~" H 6600 4150 50  0001 C CNN
	1    6600 4150
	0    1    1    0   
$EndComp
$Comp
L power:GND #PWR011
U 1 1 60DE1173
P 7100 4150
F 0 "#PWR011" H 7100 3900 50  0001 C CNN
F 1 "GND" H 7105 3977 50  0000 C CNN
F 2 "" H 7100 4150 50  0001 C CNN
F 3 "" H 7100 4150 50  0001 C CNN
	1    7100 4150
	1    0    0    -1  
$EndComp
Wire Wire Line
	6700 4150 7100 4150
Wire Wire Line
	6500 4150 5800 4150
$Comp
L Device:R_Small R2
U 1 1 60DE1C2B
P 4200 3050
F 0 "R2" V 4004 3050 50  0000 C CNN
F 1 "22" V 4095 3050 50  0000 C CNN
F 2 "Resistor_SMD:R_0805_2012Metric" H 4200 3050 50  0001 C CNN
F 3 "~" H 4200 3050 50  0001 C CNN
	1    4200 3050
	0    1    1    0   
$EndComp
$Comp
L Device:R_Small R3
U 1 1 60DE283C
P 3850 3150
F 0 "R3" V 3654 3150 50  0000 C CNN
F 1 "22" V 3745 3150 50  0000 C CNN
F 2 "Resistor_SMD:R_0805_2012Metric" H 3850 3150 50  0001 C CNN
F 3 "~" H 3850 3150 50  0001 C CNN
	1    3850 3150
	0    1    1    0   
$EndComp
Wire Wire Line
	4600 3050 4300 3050
Wire Wire Line
	4600 3150 3950 3150
Wire Wire Line
	3500 3050 4100 3050
Wire Wire Line
	3750 3150 3500 3150
$Comp
L Device:C_Small C3
U 1 1 60DE405A
P 4000 3450
F 0 "C3" H 4092 3496 50  0000 L CNN
F 1 "C_Small" H 4092 3405 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 4000 3450 50  0001 C CNN
F 3 "~" H 4000 3450 50  0001 C CNN
	1    4000 3450
	1    0    0    -1  
$EndComp
Wire Wire Line
	4000 3350 4600 3350
$Comp
L power:GND #PWR09
U 1 1 60DE5477
P 4000 3700
F 0 "#PWR09" H 4000 3450 50  0001 C CNN
F 1 "GND" H 4005 3527 50  0000 C CNN
F 2 "" H 4000 3700 50  0001 C CNN
F 3 "" H 4000 3700 50  0001 C CNN
	1    4000 3700
	1    0    0    -1  
$EndComp
Wire Wire Line
	4000 3550 4000 3700
$Comp
L Device:C_Small C4
U 1 1 60DE5B5F
P 3050 4400
F 0 "C4" H 3142 4446 50  0000 L CNN
F 1 "0.1uF" H 3142 4355 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 3050 4400 50  0001 C CNN
F 3 "~" H 3050 4400 50  0001 C CNN
	1    3050 4400
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C5
U 1 1 60DE7219
P 3450 4400
F 0 "C5" H 3542 4446 50  0000 L CNN
F 1 "0.1uF" H 3542 4355 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 3450 4400 50  0001 C CNN
F 3 "~" H 3450 4400 50  0001 C CNN
	1    3450 4400
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C6
U 1 1 60DE74CE
P 3850 4400
F 0 "C6" H 3942 4446 50  0000 L CNN
F 1 "0.1uF" H 3942 4355 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 3850 4400 50  0001 C CNN
F 3 "~" H 3850 4400 50  0001 C CNN
	1    3850 4400
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C7
U 1 1 60DE7795
P 4250 4400
F 0 "C7" H 4342 4446 50  0000 L CNN
F 1 "0.10uF" H 4342 4355 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 4250 4400 50  0001 C CNN
F 3 "~" H 4250 4400 50  0001 C CNN
	1    4250 4400
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR010
U 1 1 60DE84AA
P 3650 4150
F 0 "#PWR010" H 3650 4000 50  0001 C CNN
F 1 "+5V" H 3665 4323 50  0000 C CNN
F 2 "" H 3650 4150 50  0001 C CNN
F 3 "" H 3650 4150 50  0001 C CNN
	1    3650 4150
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR012
U 1 1 60DE8BE5
P 3650 4650
F 0 "#PWR012" H 3650 4400 50  0001 C CNN
F 1 "GND" H 3655 4477 50  0000 C CNN
F 2 "" H 3650 4650 50  0001 C CNN
F 3 "" H 3650 4650 50  0001 C CNN
	1    3650 4650
	1    0    0    -1  
$EndComp
Wire Wire Line
	3050 4300 3450 4300
Connection ~ 3450 4300
Wire Wire Line
	3450 4300 3650 4300
Connection ~ 3850 4300
Wire Wire Line
	3850 4300 4250 4300
Wire Wire Line
	3050 4500 3450 4500
Connection ~ 3450 4500
Wire Wire Line
	3450 4500 3650 4500
Connection ~ 3850 4500
Wire Wire Line
	3850 4500 4250 4500
Wire Wire Line
	3650 4650 3650 4500
Connection ~ 3650 4500
Wire Wire Line
	3650 4500 3850 4500
Wire Wire Line
	3650 4150 3650 4300
Connection ~ 3650 4300
Wire Wire Line
	3650 4300 3850 4300
$Comp
L power:+5V #PWR08
U 1 1 60DEA2AB
P 4350 2850
F 0 "#PWR08" H 4350 2700 50  0001 C CNN
F 1 "+5V" H 4365 3023 50  0000 C CNN
F 2 "" H 4350 2850 50  0001 C CNN
F 3 "" H 4350 2850 50  0001 C CNN
	1    4350 2850
	1    0    0    -1  
$EndComp
Wire Wire Line
	4350 2850 4600 2850
$Comp
L Device:Crystal_GND24_Small Y1
U 1 1 60DEB17C
P 4050 2350
F 0 "Y1" V 4004 2494 50  0000 L CNN
F 1 "16Mhz" V 4095 2494 50  0000 L CNN
F 2 "Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm" H 4050 2350 50  0001 C CNN
F 3 "~" H 4050 2350 50  0001 C CNN
	1    4050 2350
	0    1    1    0   
$EndComp
Wire Wire Line
	4050 2250 4600 2250
Wire Wire Line
	4600 2450 4050 2450
$Comp
L Device:C_Small C1
U 1 1 60DED038
P 3750 2250
F 0 "C1" V 3521 2250 50  0000 C CNN
F 1 "22pF" V 3612 2250 50  0000 C CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 3750 2250 50  0001 C CNN
F 3 "~" H 3750 2250 50  0001 C CNN
	1    3750 2250
	0    1    1    0   
$EndComp
$Comp
L Device:C_Small C2
U 1 1 60DEE5D3
P 3750 2600
F 0 "C2" V 3521 2600 50  0000 C CNN
F 1 "22pF" V 3612 2600 50  0000 C CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 3750 2600 50  0001 C CNN
F 3 "~" H 3750 2600 50  0001 C CNN
	1    3750 2600
	0    1    1    0   
$EndComp
$Comp
L power:GND #PWR07
U 1 1 60DEEC2A
P 3650 2700
F 0 "#PWR07" H 3650 2450 50  0001 C CNN
F 1 "GND" H 3655 2527 50  0000 C CNN
F 2 "" H 3650 2700 50  0001 C CNN
F 3 "" H 3650 2700 50  0001 C CNN
	1    3650 2700
	1    0    0    -1  
$EndComp
Wire Wire Line
	3650 2700 3650 2600
Wire Wire Line
	3650 2600 3650 2250
Connection ~ 3650 2600
Wire Wire Line
	3850 2250 4050 2250
Connection ~ 4050 2250
Wire Wire Line
	3850 2600 3850 2450
Wire Wire Line
	3850 2450 4050 2450
Connection ~ 4050 2450
Wire Wire Line
	3950 2350 3950 2700
Wire Wire Line
	3950 2700 3650 2700
Connection ~ 3650 2700
Wire Wire Line
	4150 2350 4150 2700
Wire Wire Line
	4150 2700 3950 2700
Connection ~ 3950 2700
$Comp
L power:GND #PWR05
U 1 1 60DF3810
P 3950 1950
F 0 "#PWR05" H 3950 1700 50  0001 C CNN
F 1 "GND" H 3955 1777 50  0000 C CNN
F 2 "" H 3950 1950 50  0001 C CNN
F 3 "" H 3950 1950 50  0001 C CNN
	1    3950 1950
	1    0    0    -1  
$EndComp
$Comp
L Switch:SW_Push SW1
U 1 1 60DF449B
P 4250 2050
F 0 "SW1" H 4250 2335 50  0000 C CNN
F 1 "SW_Push" H 4250 2244 50  0000 C CNN
F 2 "random-keyboard-parts:SKQG-1155865" H 4250 2250 50  0001 C CNN
F 3 "~" H 4250 2250 50  0001 C CNN
	1    4250 2050
	1    0    0    -1  
$EndComp
Wire Wire Line
	4450 2050 4500 2050
Wire Wire Line
	3950 1950 4050 1950
Wire Wire Line
	4050 1950 4050 2050
$Comp
L Device:R_Small R1
U 1 1 60DFAA04
P 4500 1750
F 0 "R1" H 4441 1704 50  0000 R CNN
F 1 "10k" H 4441 1795 50  0000 R CNN
F 2 "Resistor_SMD:R_0805_2012Metric" H 4500 1750 50  0001 C CNN
F 3 "~" H 4500 1750 50  0001 C CNN
	1    4500 1750
	-1   0    0    1   
$EndComp
$Comp
L power:+5V #PWR03
U 1 1 60DFB537
P 4500 1500
F 0 "#PWR03" H 4500 1350 50  0001 C CNN
F 1 "+5V" H 4515 1673 50  0000 C CNN
F 2 "" H 4500 1500 50  0001 C CNN
F 3 "" H 4500 1500 50  0001 C CNN
	1    4500 1500
	1    0    0    -1  
$EndComp
Wire Wire Line
	4500 1500 4500 1650
Wire Wire Line
	4500 1850 4500 2050
Connection ~ 4500 2050
Wire Wire Line
	4500 2050 4600 2050
Text GLabel 3500 3050 0    50   Input ~ 0
D+
Text GLabel 3500 3150 0    50   Input ~ 0
D-
$Comp
L random-keyboard-parts:Molex-0548190589 USB1
U 1 1 60DFDBDF
P 8400 1650
F 0 "USB1" V 8937 1617 60  0000 C CNN
F 1 "Molex-0548190589" V 8831 1617 60  0000 C CNN
F 2 "random-keyboard-parts:Molex-0548190589" H 8400 1650 60  0001 C CNN
F 3 "" H 8400 1650 60  0001 C CNN
	1    8400 1650
	0    -1   -1   0   
$EndComp
$Comp
L Device:Polyfuse_Small F1
U 1 1 60DFF173
P 9450 1450
F 0 "F1" V 9245 1450 50  0000 C CNN
F 1 "Polyfuse_Small" V 9336 1450 50  0000 C CNN
F 2 "Fuse:Fuse_1206_3216Metric" H 9500 1250 50  0001 L CNN
F 3 "~" H 9450 1450 50  0001 C CNN
	1    9450 1450
	0    1    1    0   
$EndComp
$Comp
L power:VCC #PWR01
U 1 1 60DFFEDF
P 9000 1450
F 0 "#PWR01" H 9000 1300 50  0001 C CNN
F 1 "VCC" H 9015 1623 50  0000 C CNN
F 2 "" H 9000 1450 50  0001 C CNN
F 3 "" H 9000 1450 50  0001 C CNN
	1    9000 1450
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR02
U 1 1 60E0071E
P 9950 1450
F 0 "#PWR02" H 9950 1300 50  0001 C CNN
F 1 "+5V" H 9965 1623 50  0000 C CNN
F 2 "" H 9950 1450 50  0001 C CNN
F 3 "" H 9950 1450 50  0001 C CNN
	1    9950 1450
	1    0    0    -1  
$EndComp
Wire Wire Line
	9950 1450 9550 1450
Wire Wire Line
	9350 1450 9000 1450
Wire Wire Line
	9000 1450 8700 1450
Connection ~ 9000 1450
Text GLabel 8700 1650 2    50   Input ~ 0
D+
Text GLabel 8700 1550 2    50   Input ~ 0
D-
$Comp
L power:GND #PWR06
U 1 1 60E03C34
P 8700 2000
F 0 "#PWR06" H 8700 1750 50  0001 C CNN
F 1 "GND" H 8705 1827 50  0000 C CNN
F 2 "" H 8700 2000 50  0001 C CNN
F 3 "" H 8700 2000 50  0001 C CNN
	1    8700 2000
	1    0    0    -1  
$EndComp
Wire Wire Line
	8700 2000 8700 1850
$Comp
L MX_Alps_Hybrid:MX-NoLED MX1
U 1 1 60E09BBF
P 8300 3350
F 0 "MX1" H 8333 3573 60  0000 C CNN
F 1 "MX-NoLED" H 8333 3499 20  0000 C CNN
F 2 "MX_Alps_Hybrid:MX-1U" H 7675 3325 60  0001 C CNN
F 3 "" H 7675 3325 60  0001 C CNN
	1    8300 3350
	1    0    0    -1  
$EndComp
$Comp
L Device:D_Small D1
U 1 1 60E0A976
P 8150 3700
F 0 "D1" V 8196 3630 50  0000 R CNN
F 1 "D_Small" V 8105 3630 50  0000 R CNN
F 2 "Diode_SMD:D_SOD-123" V 8150 3700 50  0001 C CNN
F 3 "~" V 8150 3700 50  0001 C CNN
	1    8150 3700
	0    -1   -1   0   
$EndComp
$Comp
L MX_Alps_Hybrid:MX-NoLED MX2
U 1 1 60E17B27
P 9050 3350
F 0 "MX2" H 9083 3573 60  0000 C CNN
F 1 "MX-NoLED" H 9083 3499 20  0000 C CNN
F 2 "MX_Alps_Hybrid:MX-1U" H 8425 3325 60  0001 C CNN
F 3 "" H 8425 3325 60  0001 C CNN
	1    9050 3350
	1    0    0    -1  
$EndComp
$Comp
L Device:D_Small D2
U 1 1 60E1856C
P 8900 3700
F 0 "D2" V 8946 3630 50  0000 R CNN
F 1 "D_Small" V 8855 3630 50  0000 R CNN
F 2 "Diode_SMD:D_SOD-123" V 8900 3700 50  0001 C CNN
F 3 "~" V 8900 3700 50  0001 C CNN
	1    8900 3700
	0    -1   -1   0   
$EndComp
Wire Wire Line
	9000 3500 9000 3600
Wire Wire Line
	9000 3600 8900 3600
Wire Wire Line
	8150 3600 8250 3600
Wire Wire Line
	8250 3600 8250 3500
$Comp
L MX_Alps_Hybrid:MX-NoLED MX3
U 1 1 60E1A6C0
P 8300 4200
F 0 "MX3" H 8333 4423 60  0000 C CNN
F 1 "MX-NoLED" H 8333 4349 20  0000 C CNN
F 2 "MX_Alps_Hybrid:MX-1U" H 7675 4175 60  0001 C CNN
F 3 "" H 7675 4175 60  0001 C CNN
	1    8300 4200
	1    0    0    -1  
$EndComp
$Comp
L MX_Alps_Hybrid:MX-NoLED MX4
U 1 1 60E1AC3F
P 9050 4200
F 0 "MX4" H 9083 4423 60  0000 C CNN
F 1 "MX-NoLED" H 9083 4349 20  0000 C CNN
F 2 "MX_Alps_Hybrid:MX-1U" H 8425 4175 60  0001 C CNN
F 3 "" H 8425 4175 60  0001 C CNN
	1    9050 4200
	1    0    0    -1  
$EndComp
$Comp
L Device:D_Small D3
U 1 1 60E1AFD4
P 8150 4550
F 0 "D3" V 8196 4480 50  0000 R CNN
F 1 "D_Small" V 8105 4480 50  0000 R CNN
F 2 "Diode_SMD:D_SOD-123" V 8150 4550 50  0001 C CNN
F 3 "~" V 8150 4550 50  0001 C CNN
	1    8150 4550
	0    -1   -1   0   
$EndComp
$Comp
L Device:D_Small D4
U 1 1 60E1B61B
P 8900 4550
F 0 "D4" V 8946 4480 50  0000 R CNN
F 1 "D_Small" V 8855 4480 50  0000 R CNN
F 2 "Diode_SMD:D_SOD-123" V 8900 4550 50  0001 C CNN
F 3 "~" V 8900 4550 50  0001 C CNN
	1    8900 4550
	0    -1   -1   0   
$EndComp
Wire Wire Line
	8150 4450 8250 4450
Wire Wire Line
	8250 4450 8250 4350
Wire Wire Line
	8900 4450 9000 4450
Wire Wire Line
	9000 4450 9000 4350
Wire Wire Line
	8450 4150 8450 3300
Wire Wire Line
	8450 3300 8450 2900
Connection ~ 8450 3300
Wire Wire Line
	9200 4150 9200 3300
Wire Wire Line
	9200 3300 9200 2900
Connection ~ 9200 3300
Wire Wire Line
	8900 3800 8150 3800
Wire Wire Line
	8150 3800 7800 3800
Connection ~ 8150 3800
Wire Wire Line
	8900 4650 8150 4650
Wire Wire Line
	8150 4650 7800 4650
Connection ~ 8150 4650
Text GLabel 8450 2900 1    50   Input ~ 0
COL0
Text GLabel 9200 2900 1    50   Input ~ 0
COL1
Text GLabel 7800 3800 0    50   Input ~ 0
ROW0
Text GLabel 7800 4650 0    50   Input ~ 0
ROW1
$EndSCHEMATC