kezboard-pcb/kezboard-pcb.sch

EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 3
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
NoConn ~ 2150 1800
$Comp
L Device:C C?
U 1 1 5F0786B1
P 850 1300
F 0 "C?" V 598 1300 50  0000 C CNN
F 1 "22pF" V 689 1300 50  0000 C CNN
F 2 "" H 888 1150 50  0001 C CNN
F 3 "~" H 850 1300 50  0001 C CNN
	1    850  1300
	0    1    1    0   
$EndComp
$Comp
L power:+5V #PWR?
U 1 1 5F0A1BFA
P 2650 750
F 0 "#PWR?" H 2650 600 50  0001 C CNN
F 1 "+5V" H 2665 923 50  0000 C CNN
F 2 "" H 2650 750 50  0001 C CNN
F 3 "" H 2650 750 50  0001 C CNN
	1    2650 750 
	1    0    0    -1  
$EndComp
Wire Wire Line
	2650 750  2650 900 
Wire Wire Line
	2300 4500 2300 4600
$Comp
L power:GND #PWR?
U 1 1 5F0A8134
P 2300 4600
F 0 "#PWR?" H 2300 4350 50  0001 C CNN
F 1 "GND" H 2305 4427 50  0000 C CNN
F 2 "" H 2300 4600 50  0001 C CNN
F 3 "" H 2300 4600 50  0001 C CNN
	1    2300 4600
	1    0    0    -1  
$EndComp
$Comp
L Device:R R?
U 1 1 5F0B5901
P 1750 2300
F 0 "R?" V 1543 2300 50  0000 C CNN
F 1 "22" V 1634 2300 50  0000 C CNN
F 2 "" V 1680 2300 50  0001 C CNN
F 3 "~" H 1750 2300 50  0001 C CNN
	1    1750 2300
	0    -1   -1   0   
$EndComp
$Comp
L power:+5V #PWR?
U 1 1 5EFFA2CA
P 9600 750
F 0 "#PWR?" H 9600 600 50  0001 C CNN
F 1 "+5V" H 9615 923 50  0000 C CNN
F 2 "" H 9600 750 50  0001 C CNN
F 3 "" H 9600 750 50  0001 C CNN
	1    9600 750 
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5F000FB1
P 9600 1150
F 0 "#PWR?" H 9600 900 50  0001 C CNN
F 1 "GND" H 9605 977 50  0000 C CNN
F 2 "" H 9600 1150 50  0001 C CNN
F 3 "" H 9600 1150 50  0001 C CNN
	1    9600 1150
	1    0    0    -1  
$EndComp
Wire Wire Line
	9600 1150 9600 1100
Connection ~ 9600 1100
Wire Wire Line
	9600 750  9600 800 
Connection ~ 9600 800 
$Comp
L Device:C C?
U 1 1 5F00AFA0
P 9350 950
F 0 "C?" H 9465 996 50  0000 L CNN
F 1 "0.1uF" H 9465 905 50  0000 L CNN
F 2 "" H 9388 800 50  0001 C CNN
F 3 "~" H 9350 950 50  0001 C CNN
	1    9350 950 
	1    0    0    -1  
$EndComp
Connection ~ 9350 800 
Wire Wire Line
	9350 800  9600 800 
Connection ~ 9350 1100
Wire Wire Line
	9350 1100 9600 1100
$Comp
L Device:C C?
U 1 1 5F00B4C3
P 9850 950
F 0 "C?" H 9965 996 50  0000 L CNN
F 1 "0.1uF" H 9965 905 50  0000 L CNN
F 2 "" H 9888 800 50  0001 C CNN
F 3 "~" H 9850 950 50  0001 C CNN
	1    9850 950 
	1    0    0    -1  
$EndComp
Wire Wire Line
	9600 800  9850 800 
Connection ~ 9850 800 
Wire Wire Line
	9600 1100 9850 1100
Connection ~ 9850 1100
$Comp
L Device:C C?
U 1 1 5EFFF252
P 8850 950
F 0 "C?" H 8965 996 50  0000 L CNN
F 1 "0.1uF" H 8965 905 50  0000 L CNN
F 2 "" H 8888 800 50  0001 C CNN
F 3 "~" H 8850 950 50  0001 C CNN
	1    8850 950 
	1    0    0    -1  
$EndComp
Wire Wire Line
	8850 800  9350 800 
Wire Wire Line
	8850 1100 9350 1100
$Comp
L Device:C C?
U 1 1 5F007EF5
P 10850 950
F 0 "C?" H 10965 996 50  0000 L CNN
F 1 "10uF" H 10965 905 50  0000 L CNN
F 2 "" H 10888 800 50  0001 C CNN
F 3 "~" H 10850 950 50  0001 C CNN
	1    10850 950 
	1    0    0    -1  
$EndComp
Wire Wire Line
	9850 800  10350 800 
Wire Wire Line
	9850 1100 10350 1100
$Comp
L Device:R R?
U 1 1 5F058934
P 1950 1000
F 0 "R?" H 2020 1046 50  0000 L CNN
F 1 "10k" H 2020 955 50  0000 L CNN
F 2 "" V 1880 1000 50  0001 C CNN
F 3 "~" H 1950 1000 50  0001 C CNN
	1    1950 1000
	1    0    0    -1  
$EndComp
$Comp
L Device:C C?
U 1 1 5F0BA64F
P 850 1700
F 0 "C?" V 598 1700 50  0000 C CNN
F 1 "22pF" V 689 1700 50  0000 C CNN
F 2 "" H 888 1550 50  0001 C CNN
F 3 "~" H 850 1700 50  0001 C CNN
	1    850  1700
	0    -1   -1   0   
$EndComp
Text GLabel 1550 2300 0    50   Input ~ 0
D-
Text GLabel 1550 2200 0    50   Input ~ 0
D+
Wire Wire Line
	1600 2200 1550 2200
$Comp
L Device:R R?
U 1 1 5F0AD349
P 1750 2200
F 0 "R?" V 1543 2200 50  0000 C CNN
F 1 "22" V 1634 2200 50  0000 C CNN
F 2 "" V 1680 2200 50  0001 C CNN
F 3 "~" H 1750 2200 50  0001 C CNN
	1    1750 2200
	0    1    1    0   
$EndComp
Wire Wire Line
	2150 2500 1950 2500
$Comp
L Device:C C?
U 1 1 5F049C39
P 1950 2650
F 0 "C?" H 2065 2696 50  0000 L CNN
F 1 "1uF" H 2065 2605 50  0000 L CNN
F 2 "" H 1988 2500 50  0001 C CNN
F 3 "~" H 1950 2650 50  0001 C CNN
	1    1950 2650
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5F0D86BC
P 4150 3350
F 0 "#PWR?" H 4150 3100 50  0001 C CNN
F 1 "GND" H 4155 3177 50  0000 C CNN
F 2 "" H 4150 3350 50  0001 C CNN
F 3 "" H 4150 3350 50  0001 C CNN
	1    4150 3350
	1    0    0    -1  
$EndComp
Wire Wire Line
	4150 3300 4150 3350
Wire Wire Line
	4100 3300 4150 3300
$Comp
L Device:R R?
U 1 1 5F0D539D
P 3950 3300
F 0 "R?" V 3743 3300 50  0000 C CNN
F 1 "10k" V 3834 3300 50  0000 C CNN
F 2 "" V 3880 3300 50  0001 C CNN
F 3 "~" H 3950 3300 50  0001 C CNN
	1    3950 3300
	0    1    1    0   
$EndComp
$Sheet
S 1000 6500 1500 1000
U 5F51BE8C
F0 "Switch Matrix" 50
F1 "switch-matrix.sch" 50
$EndSheet
$Comp
L power:+5V #PWR?
U 1 1 5F062179
P 1900 2000
F 0 "#PWR?" H 1900 1850 50  0001 C CNN
F 1 "+5V" H 1915 2173 50  0000 C CNN
F 2 "" H 1900 2000 50  0001 C CNN
F 3 "" H 1900 2000 50  0001 C CNN
	1    1900 2000
	1    0    0    -1  
$EndComp
Wire Wire Line
	1600 2300 1550 2300
$Comp
L Device:C C?
U 1 1 5F92A552
P 10350 950
F 0 "C?" H 10465 996 50  0000 L CNN
F 1 "0.1uF" H 10465 905 50  0000 L CNN
F 2 "" H 10388 800 50  0001 C CNN
F 3 "~" H 10350 950 50  0001 C CNN
	1    10350 950 
	1    0    0    -1  
$EndComp
Connection ~ 10350 800 
Wire Wire Line
	10350 800  10850 800 
Connection ~ 10350 1100
Wire Wire Line
	10350 1100 10850 1100
Wire Wire Line
	8350 800  8850 800 
Connection ~ 8850 800 
Wire Wire Line
	8350 1100 8850 1100
Connection ~ 8850 1100
$Sheet
S 3000 6500 1500 1000
U 5F949B9C
F0 "LED Matrix" 50
F1 "led-matrix.sch" 50
$EndSheet
$Comp
L Connector:AVR-ISP-6 J?
U 1 1 5F955015
P 7300 1400
F 0 "J?" H 6971 1496 50  0000 R CNN
F 1 "AVR-ISP-6" H 6971 1405 50  0000 R CNN
F 2 "" V 7050 1450 50  0001 C CNN
F 3 " ~" H 6025 850 50  0001 C CNN
	1    7300 1400
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5F95C857
P 7200 1850
F 0 "#PWR?" H 7200 1600 50  0001 C CNN
F 1 "GND" H 7205 1677 50  0000 C CNN
F 2 "" H 7200 1850 50  0001 C CNN
F 3 "" H 7200 1850 50  0001 C CNN
	1    7200 1850
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR?
U 1 1 5F95CE07
P 7200 750
F 0 "#PWR?" H 7200 600 50  0001 C CNN
F 1 "+5V" H 7215 923 50  0000 C CNN
F 2 "" H 7200 750 50  0001 C CNN
F 3 "" H 7200 750 50  0001 C CNN
	1    7200 750 
	1    0    0    -1  
$EndComp
Wire Wire Line
	7200 1800 7200 1850
Text GLabel 7750 1200 2    50   Input ~ 0
MISO
Text GLabel 7750 1300 2    50   Output ~ 0
MOSI
Text GLabel 7750 1400 2    50   Output ~ 0
SCK
Text GLabel 7750 1500 2    50   Output ~ 0
RST
Wire Wire Line
	7700 1200 7750 1200
Wire Wire Line
	7700 1300 7750 1300
Wire Wire Line
	7700 1400 7750 1400
Wire Wire Line
	7700 1500 7750 1500
Text GLabel 1350 1200 0    50   Input ~ 0
RST
$Comp
L Diode:1N4148W D?
U 1 1 5F04AFDC
P 1450 1000
F 0 "D?" V 1404 1080 50  0000 L CNN
F 1 "1N4148W" V 1495 1080 50  0000 L CNN
F 2 "Diode_SMD:D_SOD-123" H 1450 825 50  0001 C CNN
F 3 "https://www.vishay.com/docs/85748/1n4148w.pdf" H 1450 1000 50  0001 C CNN
	1    1450 1000
	0    1    1    0   
$EndComp
Wire Wire Line
	1450 1150 1450 1200
Wire Wire Line
	1450 1200 1950 1200
Wire Wire Line
	1950 1200 2150 1200
Connection ~ 1950 1200
Wire Wire Line
	1950 1150 1950 1200
$Comp
L power:+5V #PWR?
U 1 1 5F09393A
P 1950 750
F 0 "#PWR?" H 1950 600 50  0001 C CNN
F 1 "+5V" H 1965 923 50  0000 C CNN
F 2 "" H 1950 750 50  0001 C CNN
F 3 "" H 1950 750 50  0001 C CNN
	1    1950 750 
	1    0    0    -1  
$EndComp
Wire Wire Line
	1950 750  1950 800 
Wire Wire Line
	1450 850  1450 800 
Wire Wire Line
	1450 800  1950 800 
Connection ~ 1950 800 
Wire Wire Line
	1950 800  1950 850 
$Comp
L power:GND #PWR?
U 1 1 5F06FEED
P 1950 2800
F 0 "#PWR?" H 1950 2550 50  0001 C CNN
F 1 "GND" H 1955 2627 50  0000 C CNN
F 2 "" H 1950 2800 50  0001 C CNN
F 3 "" H 1950 2800 50  0001 C CNN
	1    1950 2800
	1    0    0    -1  
$EndComp
$Comp
L Device:C C?
U 1 1 5F92990D
P 8350 950
F 0 "C?" H 8465 996 50  0000 L CNN
F 1 "0.1uF" H 8465 905 50  0000 L CNN
F 2 "" H 8388 800 50  0001 C CNN
F 3 "~" H 8350 950 50  0001 C CNN
	1    8350 950 
	1    0    0    -1  
$EndComp
Wire Wire Line
	1650 1400 2150 1400
Wire Wire Line
	1650 1600 2150 1600
$Comp
L power:GND #PWR?
U 1 1 5F079E40
P 650 2100
F 0 "#PWR?" H 650 1850 50  0001 C CNN
F 1 "GND" H 655 1927 50  0000 C CNN
F 2 "" H 650 2100 50  0001 C CNN
F 3 "" H 650 2100 50  0001 C CNN
	1    650  2100
	1    0    0    -1  
$EndComp
$Comp
L Device:Crystal_GND24 Y?
U 1 1 5F294622
P 1100 1500
F 0 "Y?" V 1054 1744 50  0000 L CNN
F 1 "16MHz" V 1145 1744 50  0000 L CNN
F 2 "" H 1100 1500 50  0001 C CNN
F 3 "~" H 1100 1500 50  0001 C CNN
	1    1100 1500
	0    1    1    0   
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5F2A6310
P 1300 1750
F 0 "#PWR?" H 1300 1500 50  0001 C CNN
F 1 "GND" H 1305 1577 50  0000 C CNN
F 2 "" H 1300 1750 50  0001 C CNN
F 3 "" H 1300 1750 50  0001 C CNN
	1    1300 1750
	1    0    0    -1  
$EndComp
Wire Wire Line
	7200 750  7200 900 
Wire Wire Line
	1350 1200 1450 1200
Connection ~ 1450 1200
Wire Wire Line
	650  2100 650  1700
Wire Wire Line
	650  1300 700  1300
Wire Wire Line
	650  1700 700  1700
Connection ~ 650  1700
Wire Wire Line
	650  1700 650  1500
Wire Wire Line
	1000 1300 1100 1300
Wire Wire Line
	1100 1300 1100 1350
Wire Wire Line
	1000 1700 1100 1700
Wire Wire Line
	1100 1700 1100 1650
Wire Wire Line
	900  1500 650  1500
Connection ~ 650  1500
Wire Wire Line
	650  1500 650  1300
Wire Wire Line
	1300 1500 1300 1750
Wire Wire Line
	1100 1700 1650 1700
Wire Wire Line
	1650 1700 1650 1600
Connection ~ 1100 1700
Wire Wire Line
	1100 1300 1650 1300
Wire Wire Line
	1650 1300 1650 1400
Connection ~ 1100 1300
Text GLabel 3400 3700 2    50   Input ~ 0
ROW1
Text GLabel 3400 3800 2    50   Input ~ 0
ROW2
Text GLabel 3400 3600 2    50   Input ~ 0
ROW0
Text GLabel 3550 1250 1    50   Input ~ 0
MOSI
Text GLabel 3650 1250 1    50   Output ~ 0
MISO
Text GLabel 3400 3900 2    50   Input ~ 0
ROW3
Wire Wire Line
	3650 1250 3650 1500
Wire Wire Line
	3550 1250 3550 1400
Text GLabel 3400 4000 2    50   Input ~ 0
ROW4
Text GLabel 3400 4100 2    50   Input ~ 0
ROW5
Text GLabel 3400 2400 2    50   Output ~ 0
COL03
Text GLabel 3400 2500 2    50   Output ~ 0
COL04
Text GLabel 3400 2600 2    50   Output ~ 0
COL05
Text GLabel 3400 2700 2    50   Output ~ 0
COL06
Text GLabel 3400 2900 2    50   Output ~ 0
COL07
Text GLabel 3400 2800 2    50   Output ~ 0
COL08
Text GLabel 3400 3100 2    50   Output ~ 0
COL10
Text GLabel 3400 2100 2    50   Output ~ 0
COL14
Text GLabel 3400 2200 2    50   Output ~ 0
COL15
Wire Wire Line
	3800 3300 3350 3300
NoConn ~ 5500 3400
NoConn ~ 5500 3300
Text GLabel 5600 1900 2    50   Output ~ 0
D+
Wire Wire Line
	5500 1900 5600 1900
Wire Wire Line
	5500 1600 5600 1600
Wire Wire Line
	5500 1600 5500 1700
Text GLabel 5600 1600 2    50   Output ~ 0
D-
NoConn ~ 5500 3100
NoConn ~ 5500 3000
NoConn ~ 5500 2800
NoConn ~ 5500 2700
NoConn ~ 5500 2500
NoConn ~ 5500 2400
NoConn ~ 5500 2200
NoConn ~ 5500 2100
Wire Wire Line
	5500 1800 5500 1900
Connection ~ 5500 1900
Connection ~ 5500 1600
$Comp
L Connector:USB_C_Receptacle J?
U 1 1 5EFFEB48
P 4900 2100
F 0 "J?" H 5007 3367 50  0000 C CNN
F 1 "USB_C_Receptacle" H 5007 3276 50  0000 C CNN
F 2 "" H 5050 2100 50  0001 C CNN
F 3 "https://www.usb.org/sites/default/files/documents/usb_type-c.zip" H 5050 2100 50  0001 C CNN
	1    4900 2100
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR?
U 1 1 5F8E36F7
P 5900 750
F 0 "#PWR?" H 5900 600 50  0001 C CNN
F 1 "+5V" H 5915 923 50  0000 C CNN
F 2 "" H 5900 750 50  0001 C CNN
F 3 "" H 5900 750 50  0001 C CNN
	1    5900 750 
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5F009DA8
P 4900 3700
F 0 "#PWR?" H 4900 3450 50  0001 C CNN
F 1 "GND" H 4905 3527 50  0000 C CNN
F 2 "" H 4900 3700 50  0001 C CNN
F 3 "" H 4900 3700 50  0001 C CNN
	1    4900 3700
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5F00B4A1
P 4600 3700
F 0 "#PWR?" H 4600 3450 50  0001 C CNN
F 1 "GND" H 4605 3527 50  0000 C CNN
F 2 "" H 4600 3700 50  0001 C CNN
F 3 "" H 4600 3700 50  0001 C CNN
	1    4600 3700
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5F032218
P 5950 1700
F 0 "#PWR?" H 5950 1450 50  0001 C CNN
F 1 "GND" H 5955 1527 50  0000 C CNN
F 2 "" H 5950 1700 50  0001 C CNN
F 3 "" H 5950 1700 50  0001 C CNN
	1    5950 1700
	1    0    0    -1  
$EndComp
$Comp
L Device:R R?
U 1 1 5F030D08
P 5950 1550
F 0 "R?" H 6020 1596 50  0000 L CNN
F 1 "5.1k" H 6020 1505 50  0000 L CNN
F 2 "" V 5880 1550 50  0001 C CNN
F 3 "~" H 5950 1550 50  0001 C CNN
	1    5950 1550
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5F03268A
P 6200 1600
F 0 "#PWR?" H 6200 1350 50  0001 C CNN
F 1 "GND" H 6205 1427 50  0000 C CNN
F 2 "" H 6200 1600 50  0001 C CNN
F 3 "" H 6200 1600 50  0001 C CNN
	1    6200 1600
	1    0    0    -1  
$EndComp
$Comp
L Device:R R?
U 1 1 5F02FDA7
P 6200 1450
F 0 "R?" H 6270 1496 50  0000 L CNN
F 1 "5.1k" H 6270 1405 50  0000 L CNN
F 2 "" V 6130 1450 50  0001 C CNN
F 3 "~" H 6200 1450 50  0001 C CNN
	1    6200 1450
	1    0    0    -1  
$EndComp
Wire Wire Line
	5500 1400 5950 1400
Wire Wire Line
	5500 1300 6200 1300
$Comp
L Device:Polyfuse F?
U 1 1 5F286423
P 5700 1100
F 0 "F?" V 5475 1100 50  0000 C CNN
F 1 "500mA" V 5566 1100 50  0000 C CNN
F 2 "" H 5750 900 50  0001 L CNN
F 3 "~" H 5700 1100 50  0001 C CNN
	1    5700 1100
	0    1    1    0   
$EndComp
Wire Wire Line
	5900 750  5900 1100
Wire Wire Line
	5900 1100 5850 1100
Wire Wire Line
	5550 1100 5500 1100
Wire Wire Line
	2650 4500 2300 4500
Wire Wire Line
	2750 4500 2650 4500
Connection ~ 2650 4500
Connection ~ 2650 900 
Wire Wire Line
	2750 900  2650 900 
Wire Wire Line
	2750 900  2850 900 
Connection ~ 2750 900 
$Comp
L MCU_Microchip_ATmega:ATmega32U4-AU U?
U 1 1 5EFE2795
P 2750 2700
F 0 "U?" H 2750 811 50  0000 C CNN
F 1 "ATmega32U4-AU" H 2750 720 50  0000 C CNN
F 2 "Package_QFP:TQFP-44_10x10mm_P0.8mm" H 2750 2700 50  0001 C CIN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-7766-8-bit-AVR-ATmega16U4-32U4_Datasheet.pdf" H 2750 2700 50  0001 C CNN
	1    2750 2700
	1    0    0    -1  
$EndComp
Text GLabel 3400 3000 2    50   Output ~ 0
COL09
NoConn ~ 3350 3400
NoConn ~ 3350 1200
Text GLabel 3450 1250 1    50   Input ~ 0
SCK
Wire Wire Line
	3450 1250 3450 1300
Wire Wire Line
	3350 1300 3450 1300
Wire Wire Line
	3350 1400 3550 1400
Wire Wire Line
	3350 1500 3650 1500
Wire Wire Line
	3350 2100 3400 2100
Wire Wire Line
	3350 2200 3400 2200
Wire Wire Line
	3350 2400 3400 2400
Wire Wire Line
	3350 2500 3400 2500
Wire Wire Line
	3350 2600 3400 2600
Wire Wire Line
	3350 2700 3400 2700
Wire Wire Line
	3350 2800 3400 2800
Wire Wire Line
	3350 2900 3400 2900
Wire Wire Line
	3350 3000 3400 3000
Wire Wire Line
	3350 3100 3400 3100
Wire Wire Line
	3400 3600 3350 3600
Wire Wire Line
	3350 3700 3400 3700
Wire Wire Line
	3400 3800 3350 3800
Wire Wire Line
	3350 3900 3400 3900
Wire Wire Line
	3400 4000 3350 4000
Wire Wire Line
	3350 4100 3400 4100
Wire Wire Line
	1900 2000 2150 2000
Wire Wire Line
	2150 2200 1900 2200
Wire Wire Line
	1900 2300 2150 2300
Text GLabel 3400 1600 2    50   Output ~ 0
COL11
Text GLabel 3400 1700 2    50   Output ~ 0
COL12
Text GLabel 3400 1800 2    50   Output ~ 0
COL13
Wire Wire Line
	3350 1600 3400 1600
Wire Wire Line
	3350 1700 3400 1700
Wire Wire Line
	3350 1800 3400 1800
Text GLabel 3750 1300 2    50   Output ~ 0
COL00
Text GLabel 3750 1400 2    50   Output ~ 0
COL01
Text GLabel 3750 1500 2    50   Output ~ 0
COL02
Text GLabel 3400 1900 2    50   Output ~ 0
DIN
Connection ~ 3450 1300
Wire Wire Line
	3450 1300 3750 1300
Connection ~ 3550 1400
Wire Wire Line
	3550 1400 3750 1400
Connection ~ 3650 1500
Wire Wire Line
	3650 1500 3750 1500
Wire Wire Line
	3350 1900 3400 1900
$EndSCHEMATC