reform/reform-keyboard-pcb/reform-kbd-mcu.sch

EESchema Schematic File Version 4
LIBS:power
LIBS:device
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:regul
LIBS:74xx
LIBS:cmos4000
LIBS:adc-dac
LIBS:memory
LIBS:xilinx
LIBS:microcontrollers
LIBS:dsp
LIBS:microchip
LIBS:analog_switches
LIBS:motorola
LIBS:texas
LIBS:intel
LIBS:audio
LIBS:interface
LIBS:digital-audio
LIBS:philips
LIBS:display
LIBS:cypress
LIBS:siliconi
LIBS:opto
LIBS:atmel
LIBS:contrib
LIBS:valves
LIBS:mntcomp-keyboard
LIBS:mntcomp-keyboard-cache
EELAYER 26 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 2 2
Title "Reform Keyboard"
Date "2018-11-11"
Rev "0.4"
Comp "MNT Media and Technology UG"
Comment1 "License: GPLv3+ https://www.gnu.org/licenses/gpl-3.0.en.html"
Comment2 "Copyright 2017,2018 Lukas F. Hartmann / mntmn"
Comment3 "https://mntmn.com/reform"
Comment4 ""
$EndDescr
$Comp
L GND #PWR01
U 1 1 5A20720B
P 3800 4700
F 0 "#PWR01" H 3800 4450 50  0001 C CNN
F 1 "GND" H 3800 4550 50  0000 C CNN
F 2 "" H 3800 4700 50  0001 C CNN
F 3 "" H 3800 4700 50  0001 C CNN
	1    3800 4700
	1    0    0    -1  
$EndComp
$Comp
L C_Small C1
U 1 1 5A2073AA
P 2700 3600
F 0 "C1" H 2710 3670 50  0000 L CNN
F 1 "18pF" H 2710 3520 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 2700 3600 50  0001 C CNN
F 3 "" H 2700 3600 50  0001 C CNN
	1    2700 3600
	1    0    0    -1  
$EndComp
$Comp
L C_Small C2
U 1 1 5A2073F7
P 3300 3600
F 0 "C2" H 3310 3670 50  0000 L CNN
F 1 "18pF" H 3310 3520 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 3300 3600 50  0001 C CNN
F 3 "" H 3300 3600 50  0001 C CNN
	1    3300 3600
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR02
U 1 1 5A207477
P 3000 3850
F 0 "#PWR02" H 3000 3600 50  0001 C CNN
F 1 "GND" H 3000 3700 50  0000 C CNN
F 2 "" H 3000 3850 50  0001 C CNN
F 3 "" H 3000 3850 50  0001 C CNN
	1    3000 3850
	1    0    0    -1  
$EndComp
$Comp
L C_Small C3
U 1 1 5A20764E
P 3800 4500
F 0 "C3" H 3810 4570 50  0000 L CNN
F 1 "1uF" H 3810 4420 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 3800 4500 50  0001 C CNN
F 3 "" H 3800 4500 50  0001 C CNN
	1    3800 4500
	1    0    0    -1  
$EndComp
Text GLabel 8900 3850 2    60   Input ~ 0
UVCC
$Comp
L GND #PWR03
U 1 1 5A2077AE
P 9400 4000
F 0 "#PWR03" H 9400 3750 50  0001 C CNN
F 1 "GND" H 9400 3850 50  0000 C CNN
F 2 "" H 9400 4000 50  0001 C CNN
F 3 "" H 9400 4000 50  0001 C CNN
	1    9400 4000
	1    0    0    -1  
$EndComp
Text GLabel 8900 3650 2    60   Input ~ 0
D+
Text GLabel 8900 3750 2    60   Input ~ 0
D-
Text GLabel 8900 3450 2    60   Input ~ 0
PWRON
Text GLabel 3900 3700 0    60   Input ~ 0
UVCC
Text GLabel 3600 4050 0    60   Input ~ 0
D+
Text GLabel 3600 4150 0    60   Input ~ 0
D-
Text GLabel 4700 1900 1    60   Input ~ 0
UVCC
$Comp
L GND #PWR04
U 1 1 5A207A65
P 4750 6200
F 0 "#PWR04" H 4750 5950 50  0001 C CNN
F 1 "GND" H 4750 6050 50  0000 C CNN
F 2 "" H 4750 6200 50  0001 C CNN
F 3 "" H 4750 6200 50  0001 C CNN
	1    4750 6200
	1    0    0    -1  
$EndComp
$Comp
L Conn_01x02 J1
U 1 1 5A207D64
P 7700 2950
F 0 "J1" H 7700 3050 50  0000 C CNN
F 1 "Conn_01x02" H 7700 2750 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x02_Pitch2.00mm" H 7700 2950 50  0001 C CNN
F 3 "" H 7700 2950 50  0001 C CNN
	1    7700 2950
	-1   0    0    1   
$EndComp
Text GLabel 7900 2850 2    60   Input ~ 0
RESET
Text GLabel 3700 2700 0    60   Input ~ 0
RESET
$Comp
L GND #PWR05
U 1 1 5A207DEF
P 8000 3100
F 0 "#PWR05" H 8000 2850 50  0001 C CNN
F 1 "GND" H 8000 2950 50  0000 C CNN
F 2 "" H 8000 3100 50  0001 C CNN
F 3 "" H 8000 3100 50  0001 C CNN
	1    8000 3100
	1    0    0    -1  
$EndComp
Text GLabel 6250 2700 2    60   Input ~ 0
ROW1
Text GLabel 6250 2800 2    60   Input ~ 0
ROW2
Text GLabel 6250 2900 2    60   Input ~ 0
ROW3
Text GLabel 6250 3000 2    60   Input ~ 0
ROW4
Text GLabel 6250 3100 2    60   Input ~ 0
ROW5
Text GLabel 6250 3200 2    60   Input ~ 0
ROW6
Text GLabel 6250 3300 2    60   Input ~ 0
COL1
Text GLabel 6250 3400 2    60   Input ~ 0
COL2
Text GLabel 6250 3900 2    60   Input ~ 0
COL3
Text GLabel 6250 4000 2    60   Input ~ 0
COL4
Text GLabel 6250 4100 2    60   Input ~ 0
COL5
Text GLabel 6250 4200 2    60   Input ~ 0
COL6
Text GLabel 6250 4300 2    60   Input ~ 0
COL7
Text GLabel 6250 4400 2    60   Input ~ 0
COL8
Text GLabel 6250 4500 2    60   Input ~ 0
COL9
Text GLabel 6250 4600 2    60   Input ~ 0
COL10
Text GLabel 6250 5100 2    60   Input ~ 0
COL11
Text GLabel 6250 5200 2    60   Input ~ 0
COL12
Text GLabel 6250 5300 2    60   Input ~ 0
COL13
Text GLabel 6250 5400 2    60   Input ~ 0
COL14
Text GLabel 6250 5500 2    60   Input ~ 0
COL15
$Comp
L ATMEGA32U4-AU U1
U 1 1 5A21306C
P 5150 4250
F 0 "U1" H 4200 5950 50  0000 C CNN
F 1 "ATMEGA32U4-AU" H 5850 2750 50  0000 C CNN
F 2 "Housings_QFP:TQFP-44_10x10mm_Pitch0.8mm" H 5150 4250 50  0001 C CIN
F 3 "" H 6250 5350 50  0001 C CNN
	1    5150 4250
	1    0    0    -1  
$EndComp
Text GLabel 6250 5600 2    60   Input ~ 0
PWRON
Text GLabel 3700 2150 0    60   Input ~ 0
RAWVCC
$Comp
L Conn_01x06 J2
U 1 1 5A213B3D
P 8700 3650
F 0 "J2" H 8700 3950 50  0000 C CNN
F 1 "Conn_01x06" H 8700 3250 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x06_Pitch2.00mm" H 8700 3650 50  0001 C CNN
F 3 "" H 8700 3650 50  0001 C CNN
	1    8700 3650
	-1   0    0    1   
$EndComp
Text GLabel 8900 3350 2    60   Input ~ 0
RAWVCC
$Comp
L R_Small R2
U 1 1 5A213EDF
P 3750 4150
F 0 "R2" V 3850 4100 50  0000 L CNN
F 1 "0" V 3850 4250 50  0000 L CNN
F 2 "Resistors_SMD:R_0603_HandSoldering" H 3750 4150 50  0001 C CNN
F 3 "" H 3750 4150 50  0001 C CNN
	1    3750 4150
	0    1    1    0   
$EndComp
$Comp
L R_Small R1
U 1 1 5A213F64
P 3750 4050
F 0 "R1" V 3650 4000 50  0000 L CNN
F 1 "0" V 3650 4150 50  0000 L CNN
F 2 "Resistors_SMD:R_0603_HandSoldering" H 3750 4050 50  0001 C CNN
F 3 "" H 3750 4050 50  0001 C CNN
	1    3750 4050
	0    1    1    0   
$EndComp
Text GLabel 4950 1900 1    60   Input ~ 0
RAWVCC
$Comp
L C_Small C4
U 1 1 5A2148C0
P 4450 2200
F 0 "C4" H 4460 2270 50  0000 L CNN
F 1 "1uF" H 4460 2120 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 4450 2200 50  0001 C CNN
F 3 "" H 4450 2200 50  0001 C CNN
	1    4450 2200
	1    0    0    -1  
$EndComp
$Comp
L C_Small C5
U 1 1 5A214A09
P 5700 2150
F 0 "C5" H 5710 2220 50  0000 L CNN
F 1 "1uF" H 5710 2070 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 5700 2150 50  0001 C CNN
F 3 "" H 5700 2150 50  0001 C CNN
	1    5700 2150
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR06
U 1 1 5A214AB7
P 4450 2300
F 0 "#PWR06" H 4450 2050 50  0001 C CNN
F 1 "GND" H 4450 2150 50  0000 C CNN
F 2 "" H 4450 2300 50  0001 C CNN
F 3 "" H 4450 2300 50  0001 C CNN
	1    4450 2300
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR07
U 1 1 5A214B4F
P 5700 2300
F 0 "#PWR07" H 5700 2050 50  0001 C CNN
F 1 "GND" H 5700 2150 50  0000 C CNN
F 2 "" H 5700 2300 50  0001 C CNN
F 3 "" H 5700 2300 50  0001 C CNN
	1    5700 2300
	1    0    0    -1  
$EndComp
$Comp
L TEST MH1
U 1 1 5A26DEEF
P 1500 5950
F 0 "MH1" H 1500 6250 50  0000 C BNN
F 1 "Hole" H 1500 6200 50  0000 C CNN
F 2 "Mounting_Holes:MountingHole_3mm" H 1500 5950 50  0001 C CNN
F 3 "" H 1500 5950 50  0001 C CNN
	1    1500 5950
	1    0    0    -1  
$EndComp
$Comp
L TEST MH2
U 1 1 5A26E0DE
P 1750 5950
F 0 "MH2" H 1750 6250 50  0000 C BNN
F 1 "Hole" H 1750 6200 50  0000 C CNN
F 2 "Mounting_Holes:MountingHole_3mm" H 1750 5950 50  0001 C CNN
F 3 "" H 1750 5950 50  0001 C CNN
	1    1750 5950
	1    0    0    -1  
$EndComp
$Comp
L TEST MH3
U 1 1 5A26E127
P 2000 5950
F 0 "MH3" H 2000 6250 50  0000 C BNN
F 1 "Hole" H 2000 6200 50  0000 C CNN
F 2 "Mounting_Holes:MountingHole_3mm" H 2000 5950 50  0001 C CNN
F 3 "" H 2000 5950 50  0001 C CNN
	1    2000 5950
	1    0    0    -1  
$EndComp
$Comp
L TEST MH4
U 1 1 5A26E16D
P 2250 5950
F 0 "MH4" H 2250 6250 50  0000 C BNN
F 1 "Hole" H 2250 6200 50  0000 C CNN
F 2 "Mounting_Holes:MountingHole_3mm" H 2250 5950 50  0001 C CNN
F 3 "" H 2250 5950 50  0001 C CNN
	1    2250 5950
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR08
U 1 1 5A635C68
P 5150 2050
F 0 "#PWR08" H 5150 1900 50  0001 C CNN
F 1 "+5V" H 5150 2190 50  0000 C CNN
F 2 "" H 5150 2050 50  0001 C CNN
F 3 "" H 5150 2050 50  0001 C CNN
	1    5150 2050
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR09
U 1 1 5A635C9E
P 3800 2050
F 0 "#PWR09" H 3800 1900 50  0001 C CNN
F 1 "+5V" H 3800 2190 50  0000 C CNN
F 2 "" H 3800 2050 50  0001 C CNN
F 3 "" H 3800 2050 50  0001 C CNN
	1    3800 2050
	1    0    0    -1  
$EndComp
$Comp
L R_Small R3
U 1 1 5A21443A
P 3800 2350
F 0 "R3" H 3830 2370 50  0000 L CNN
F 1 "10k" H 3830 2310 50  0000 L CNN
F 2 "Resistors_SMD:R_0603_HandSoldering" H 3800 2350 50  0001 C CNN
F 3 "" H 3800 2350 50  0001 C CNN
	1    3800 2350
	1    0    0    -1  
$EndComp
$Comp
L Crystal_GND24 Y1
U 1 1 5A6378F6
P 3000 3300
F 0 "Y1" H 3125 3500 50  0000 L CNN
F 1 "16MHz" H 3125 3425 50  0000 L CNN
F 2 "Crystals:Crystal_SMD_3225-4pin_3.2x2.5mm_HandSoldering" H 3000 3300 50  0001 C CNN
F 3 "" H 3000 3300 50  0001 C CNN
	1    3000 3300
	1    0    0    -1  
$EndComp
$Comp
L LED D80
U 1 1 5A666D80
P 6950 5300
F 0 "D80" H 6950 5400 50  0000 C CNN
F 1 "LED" H 6950 5200 50  0000 C CNN
F 2 "LEDs:LED_0805_HandSoldering" H 6950 5300 50  0001 C CNN
F 3 "" H 6950 5300 50  0001 C CNN
	1    6950 5300
	0    1    1    0   
$EndComp
$Comp
L R_Small R4
U 1 1 5A666EFB
P 6950 5550
F 0 "R4" H 6980 5570 50  0000 L CNN
F 1 "R_Small" H 6980 5510 50  0000 L CNN
F 2 "Resistors_SMD:R_0603_HandSoldering" H 6950 5550 50  0001 C CNN
F 3 "" H 6950 5550 50  0001 C CNN
	1    6950 5550
	1    0    0    -1  
$EndComp
Text GLabel 7200 5750 2    60   Input ~ 0
RAWVCC
$Comp
L Conn_01x05 J3
U 1 1 5A6671A0
P 7400 4800
F 0 "J3" H 7400 5100 50  0000 C CNN
F 1 "Conn_01x05" H 7400 4500 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x05_Pitch2.00mm" H 7400 4800 50  0001 C CNN
F 3 "" H 7400 4800 50  0001 C CNN
	1    7400 4800
	1    0    0    -1  
$EndComp
Wire Wire Line
	3300 3300 3300 3500
Wire Wire Line
	2700 3000 2700 3500
Wire Wire Line
	2700 3800 3300 3800
Wire Wire Line
	3000 3500 3000 3850
Wire Wire Line
	3300 3800 3300 3700
Connection ~ 3000 3800
Wire Wire Line
	4750 5850 4750 6200
Wire Wire Line
	9400 4000 9400 3550
Wire Wire Line
	9400 3550 8900 3550
Wire Wire Line
	8000 3100 8000 2950
Wire Wire Line
	8000 2950 7900 2950
Wire Wire Line
	4000 4300 3800 4300
Wire Wire Line
	3800 4300 3800 4400
Wire Wire Line
	3800 4700 3800 4600
Wire Wire Line
	4700 1900 4700 2450
Wire Wire Line
	4950 1900 4950 2450
Connection ~ 4950 2300
Wire Wire Line
	5050 2450 5050 2300
Connection ~ 5050 2300
Wire Wire Line
	5300 2300 5300 2450
Connection ~ 5300 2300
Connection ~ 5400 2300
Wire Wire Line
	5300 6000 5300 5850
Wire Wire Line
	4750 6000 5300 6000
Connection ~ 4750 6000
Wire Wire Line
	5000 5850 5000 6000
Connection ~ 5000 6000
Wire Wire Line
	5100 5850 5100 6000
Connection ~ 5100 6000
Wire Wire Line
	5200 5850 5200 6000
Connection ~ 5200 6000
Wire Wire Line
	4450 2050 4700 2050
Connection ~ 4700 2050
Wire Wire Line
	4950 2300 5400 2300
Wire Wire Line
	5400 2300 5400 2450
Wire Wire Line
	4950 2050 5700 2050
Connection ~ 4950 2050
Wire Wire Line
	3650 4150 3600 4150
Wire Wire Line
	3650 4050 3600 4050
Wire Wire Line
	3850 4050 4000 4050
Wire Wire Line
	4000 4150 3850 4150
Wire Wire Line
	3900 3700 4000 3700
Wire Wire Line
	4000 3700 4000 3900
Wire Wire Line
	3800 2450 3800 2700
Wire Wire Line
	3700 2700 4000 2700
Connection ~ 3800 2700
Wire Wire Line
	3800 2050 3800 2250
Wire Wire Line
	3700 2150 3800 2150
Connection ~ 3800 2150
Connection ~ 5150 2050
Wire Wire Line
	5700 2300 5700 2250
Wire Wire Line
	6250 3600 7000 3600
Wire Wire Line
	7000 3600 7000 4600
Wire Wire Line
	6250 3700 6950 3700
Wire Wire Line
	6950 3700 6950 4700
Wire Wire Line
	6250 4800 7200 4800
Wire Wire Line
	6250 4900 7050 4900
Wire Wire Line
	7000 4600 7200 4600
Wire Wire Line
	6950 4700 7200 4700
Wire Wire Line
	4450 2100 4450 2050
Wire Wire Line
	4000 3100 3300 3100
Wire Wire Line
	3300 3100 3300 3000
Wire Wire Line
	3300 3000 2700 3000
Connection ~ 2700 3300
Connection ~ 3300 3300
Wire Wire Line
	2700 3800 2700 3700
Wire Wire Line
	3150 3300 4000 3300
Wire Wire Line
	2850 3300 2700 3300
Wire Wire Line
	3000 3100 2800 3100
Wire Wire Line
	2800 3100 2800 3550
Wire Wire Line
	2800 3550 3000 3550
Connection ~ 3000 3550
Wire Wire Line
	6950 5750 6950 5650
Wire Wire Line
	6950 5150 6950 4900
Connection ~ 6950 4900
Wire Wire Line
	7200 5750 6950 5750
Wire Wire Line
	7050 4900 7050 5000
Wire Wire Line
	7050 5000 7200 5000
Wire Wire Line
	7200 4350 7150 4350
Wire Wire Line
	7150 4350 7150 4900
Wire Wire Line
	7150 4900 7200 4900
$Comp
L TEST MH5
U 1 1 5A6678C8
P 2500 5950
F 0 "MH5" H 2500 6250 50  0000 C BNN
F 1 "Hole" H 2500 6200 50  0000 C CNN
F 2 "Mounting_Holes:MountingHole_3mm" H 2500 5950 50  0001 C CNN
F 3 "" H 2500 5950 50  0001 C CNN
	1    2500 5950
	1    0    0    -1  
$EndComp
$Comp
L TEST MH6
U 1 1 5A6678CE
P 2750 5950
F 0 "MH6" H 2750 6250 50  0000 C BNN
F 1 "Hole" H 2750 6200 50  0000 C CNN
F 2 "Mounting_Holes:MountingHole_3mm" H 2750 5950 50  0001 C CNN
F 3 "" H 2750 5950 50  0001 C CNN
	1    2750 5950
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR010
U 1 1 5A667BAA
P 7200 4350
F 0 "#PWR010" H 7200 4100 50  0001 C CNN
F 1 "GND" H 7200 4200 50  0000 C CNN
F 2 "" H 7200 4350 50  0001 C CNN
F 3 "" H 7200 4350 50  0001 C CNN
	1    7200 4350
	0    -1   -1   0   
$EndComp
$EndSCHEMATC