EESchema Schematic File Version 2
LIBS:my74xx
LIBS:ftdi
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:USB2SerialMux-cache
LIBS:crystal
EELAYER 25 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date "11 jul 2016"
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Text Label 5250 4050 0    60   ~ 0
TxD_RxD
Text Label 5250 3950 0    60   ~ 0
RxD_TxD
$Comp
L CONN_01X08 P3
U 1 1 578800A6
P 9850 2000
F 0 "P3" H 9850 2450 50  0000 C CNN
F 1 "CONN_01X08" V 9950 2000 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x08" H 9850 2000 50  0001 C CNN
F 3 "" H 9850 2000 50  0000 C CNN
	1    9850 2000
	1    0    0    -1  
$EndComp
$Comp
L CONN_01X08 P4
U 1 1 57880227
P 9850 4650
F 0 "P4" H 9850 5100 50  0000 C CNN
F 1 "CONN_01X08" V 9950 4650 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x08" H 9850 4650 50  0001 C CNN
F 3 "" H 9850 4650 50  0000 C CNN
	1    9850 4650
	1    0    0    -1  
$EndComp
$Comp
L CONN_01X08 P2
U 1 1 578802D4
P 5100 6700
F 0 "P2" H 5100 7150 50  0000 C CNN
F 1 "CONN_01X08" V 5200 6700 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x08" H 5100 6700 50  0001 C CNN
F 3 "" H 5100 6700 50  0000 C CNN
	1    5100 6700
	0    -1   -1   0   
$EndComp
$Comp
L GND #PWR01
U 1 1 578806F7
P 5450 7100
F 0 "#PWR01" H 5450 6850 50  0001 C CNN
F 1 "GND" H 5450 6950 50  0000 C CNN
F 2 "" H 5450 7100 50  0000 C CNN
F 3 "" H 5450 7100 50  0000 C CNN
	1    5450 7100
	1    0    0    -1  
$EndComp
Text Label 6850 2500 2    60   ~ 0
TxD_RxD
Text Label 6850 5150 2    60   ~ 0
RxD_TxD
$Comp
L GND #PWR02
U 1 1 57880CBC
P 7050 3050
F 0 "#PWR02" H 7050 2800 50  0001 C CNN
F 1 "GND" H 7050 2900 50  0000 C CNN
F 2 "" H 7050 3050 50  0000 C CNN
F 3 "" H 7050 3050 50  0000 C CNN
	1    7050 3050
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR03
U 1 1 57880CD9
P 7050 5700
F 0 "#PWR03" H 7050 5450 50  0001 C CNN
F 1 "GND" H 7050 5550 50  0000 C CNN
F 2 "" H 7050 5700 50  0000 C CNN
F 3 "" H 7050 5700 50  0000 C CNN
	1    7050 5700
	1    0    0    -1  
$EndComp
$Comp
L +3.3V #PWR04
U 1 1 57881288
P 2100 1100
F 0 "#PWR04" H 2100 950 50  0001 C CNN
F 1 "+3.3V" H 2100 1240 50  0000 C CNN
F 2 "" H 2100 1100 50  0000 C CNN
F 3 "" H 2100 1100 50  0000 C CNN
	1    2100 1100
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR05
U 1 1 57881458
P 1100 1100
F 0 "#PWR05" H 1100 950 50  0001 C CNN
F 1 "+5V" H 1100 1240 50  0000 C CNN
F 2 "" H 1100 1100 50  0000 C CNN
F 3 "" H 1100 1100 50  0000 C CNN
	1    1100 1100
	1    0    0    -1  
$EndComp
$Comp
L +3.3V #PWR06
U 1 1 578815D1
P 6850 1300
F 0 "#PWR06" H 6850 1150 50  0001 C CNN
F 1 "+3.3V" H 6850 1440 50  0000 C CNN
F 2 "" H 6850 1300 50  0000 C CNN
F 3 "" H 6850 1300 50  0000 C CNN
	1    6850 1300
	1    0    0    -1  
$EndComp
$Comp
L +3.3V #PWR07
U 1 1 578816A8
P 6850 3900
F 0 "#PWR07" H 6850 3750 50  0001 C CNN
F 1 "+3.3V" H 6850 4040 50  0000 C CNN
F 2 "" H 6850 3900 50  0000 C CNN
F 3 "" H 6850 3900 50  0000 C CNN
	1    6850 3900
	1    0    0    -1  
$EndComp
Text Label 8850 2550 0    60   ~ 0
S0
Text Label 8850 2650 0    60   ~ 0
S1
Text Label 8850 2750 0    60   ~ 0
S2
Text Label 8900 5200 0    60   ~ 0
S0
Text Label 8900 5300 0    60   ~ 0
S1
Text Label 8900 5400 0    60   ~ 0
S2
$Comp
L USB_OTG P1
U 1 1 578834A3
P 900 6750
F 0 "P1" H 1225 6625 50  0000 C CNN
F 1 "USB_OTG" H 900 6950 50  0000 C CNN
F 2 "reichelt:USB-MINI-B-SMD" V 850 6650 50  0001 C CNN
F 3 "" V 850 6650 50  0000 C CNN
	1    900  6750
	0    -1   1    0   
$EndComp
Text Label 2350 4000 2    60   ~ 0
D-
Text Label 2350 3900 2    60   ~ 0
D+
$Comp
L +5V #PWR08
U 1 1 578920DC
P 1300 6150
F 0 "#PWR08" H 1300 6000 50  0001 C CNN
F 1 "+5V" H 1300 6290 50  0000 C CNN
F 2 "" H 1300 6150 50  0000 C CNN
F 3 "" H 1300 6150 50  0000 C CNN
	1    1300 6150
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR09
U 1 1 578921B9
P 1300 7050
F 0 "#PWR09" H 1300 6800 50  0001 C CNN
F 1 "GND" H 1300 6900 50  0000 C CNN
F 2 "" H 1300 7050 50  0000 C CNN
F 3 "" H 1300 7050 50  0000 C CNN
	1    1300 7050
	1    0    0    -1  
$EndComp
$Comp
L C C6
U 1 1 57892501
P 1100 1450
F 0 "C6" H 1125 1550 50  0000 L CNN
F 1 "100n" H 1125 1350 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 1138 1300 50  0001 C CNN
F 3 "" H 1100 1450 50  0000 C CNN
	1    1100 1450
	1    0    0    -1  
$EndComp
$Comp
L C C5
U 1 1 57892620
P 2100 1450
F 0 "C5" H 2125 1550 50  0000 L CNN
F 1 "100n" H 2125 1350 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 2138 1300 50  0001 C CNN
F 3 "" H 2100 1450 50  0000 C CNN
	1    2100 1450
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR010
U 1 1 57892AF2
P 800 7250
F 0 "#PWR010" H 800 7000 50  0001 C CNN
F 1 "GND" H 800 7100 50  0000 C CNN
F 2 "" H 800 7250 50  0000 C CNN
F 3 "" H 800 7250 50  0000 C CNN
	1    800  7250
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR011
U 1 1 57892B6F
P 2300 6450
F 0 "#PWR011" H 2300 6200 50  0001 C CNN
F 1 "GND" H 2300 6300 50  0000 C CNN
F 2 "" H 2300 6450 50  0000 C CNN
F 3 "" H 2300 6450 50  0000 C CNN
	1    2300 6450
	0    -1   -1   0   
$EndComp
$Comp
L C C2
U 1 1 57892EC4
P 6600 1650
F 0 "C2" H 6625 1750 50  0000 L CNN
F 1 "100n" H 6625 1550 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 6638 1500 50  0001 C CNN
F 3 "" H 6600 1650 50  0000 C CNN
	1    6600 1650
	0    -1   -1   0   
$EndComp
$Comp
L C C3
U 1 1 57893092
P 6600 4300
F 0 "C3" H 6625 4400 50  0000 L CNN
F 1 "100n" H 6625 4200 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 6638 4150 50  0001 C CNN
F 3 "" H 6600 4300 50  0000 C CNN
	1    6600 4300
	0    -1   -1   0   
$EndComp
$Comp
L GND #PWR012
U 1 1 5789333C
P 6350 4300
F 0 "#PWR012" H 6350 4050 50  0001 C CNN
F 1 "GND" H 6350 4150 50  0000 C CNN
F 2 "" H 6350 4300 50  0000 C CNN
F 3 "" H 6350 4300 50  0000 C CNN
	1    6350 4300
	0    1    1    0   
$EndComp
$Comp
L GND #PWR013
U 1 1 57893416
P 6350 1650
F 0 "#PWR013" H 6350 1400 50  0001 C CNN
F 1 "GND" H 6350 1500 50  0000 C CNN
F 2 "" H 6350 1650 50  0000 C CNN
F 3 "" H 6350 1650 50  0000 C CNN
	1    6350 1650
	0    1    1    0   
$EndComp
$Comp
L C C1
U 1 1 57894879
P 1950 6450
F 0 "C1" H 1975 6550 50  0000 L CNN
F 1 "4,7u" H 1975 6350 50  0000 L CNN
F 2 "Capacitors_SMD:C_0805" H 1988 6300 50  0001 C CNN
F 3 "" H 1950 6450 50  0000 C CNN
	1    1950 6450
	0    -1   -1   0   
$EndComp
$Comp
L C C4
U 1 1 578961B9
P 1950 6150
F 0 "C4" H 1975 6250 50  0000 L CNN
F 1 "10n" H 1975 6050 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 1988 6000 50  0001 C CNN
F 3 "" H 1950 6150 50  0000 C CNN
	1    1950 6150
	0    -1   -1   0   
$EndComp
$Comp
L 74HC4051 U2
U 1 1 5789DF39
P 7850 2300
F 0 "U2" H 7850 2300 50  0000 C CNN
F 1 "74HC4051" H 7850 2150 50  0000 C CNN
F 2 "Housings_SSOP:TSSOP-16_4.4x5mm_Pitch0.65mm" H 7850 2300 50  0001 C CNN
F 3 "" H 7850 2300 50  0000 C CNN
	1    7850 2300
	-1   0    0    -1  
$EndComp
$Comp
L 74HCT4051 U3
U 1 1 5789E407
P 7850 4950
F 0 "U3" H 7850 4950 50  0000 C CNN
F 1 "74HCT4051" H 7850 4800 50  0000 C CNN
F 2 "Housings_SSOP:TSSOP-16_4.4x5mm_Pitch0.65mm" H 7850 4950 50  0001 C CNN
F 3 "" H 7850 4950 50  0000 C CNN
	1    7850 4950
	-1   0    0    -1  
$EndComp
$Comp
L ATMEGA32U4-A U4
U 1 1 5791076B
P 3850 4100
F 0 "U4" H 2900 5800 50  0000 C CNN
F 1 "ATMEGA32U4-A" H 4550 2600 50  0000 C CNN
F 2 "Housings_QFP:TQFP-44_10x10mm_Pitch0.8mm" H 3850 4100 50  0000 C CIN
F 3 "" H 4950 5200 50  0000 C CNN
	1    3850 4100
	1    0    0    -1  
$EndComp
$Comp
L LD1117S33TR U1
U 1 1 57910D48
P 1600 1250
F 0 "U1" H 1600 1500 50  0000 C CNN
F 1 "LD1117S33TR" H 1600 1450 50  0000 C CNN
F 2 "TO_SOT_Packages_SMD:SOT-223" H 1600 1350 50  0000 C CNN
F 3 "" H 1600 1250 50  0000 C CNN
	1    1600 1250
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR014
U 1 1 57912AFB
P 1600 1800
F 0 "#PWR014" H 1600 1550 50  0001 C CNN
F 1 "GND" H 1600 1650 50  0000 C CNN
F 2 "" H 1600 1800 50  0000 C CNN
F 3 "" H 1600 1800 50  0000 C CNN
	1    1600 1800
	1    0    0    -1  
$EndComp
$Comp
L R R3
U 1 1 57912DC2
P 2600 2150
F 0 "R3" V 2680 2150 50  0000 C CNN
F 1 "10k" V 2600 2150 50  0000 C CNN
F 2 "Capacitors_SMD:C_0805_HandSoldering" V 2530 2150 50  0001 C CNN
F 3 "" H 2600 2150 50  0000 C CNN
	1    2600 2150
	1    0    0    -1  
$EndComp
$Comp
L +3.3V #PWR015
U 1 1 5791308C
P 2600 1900
F 0 "#PWR015" H 2600 1750 50  0001 C CNN
F 1 "+3.3V" H 2600 2040 50  0000 C CNN
F 2 "" H 2600 1900 50  0000 C CNN
F 3 "" H 2600 1900 50  0000 C CNN
	1    2600 1900
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR016
U 1 1 579134D2
P 2250 3500
F 0 "#PWR016" H 2250 3350 50  0001 C CNN
F 1 "+5V" H 2250 3640 50  0000 C CNN
F 2 "" H 2250 3500 50  0000 C CNN
F 3 "" H 2250 3500 50  0000 C CNN
	1    2250 3500
	1    0    0    -1  
$EndComp
$Comp
L C C7
U 1 1 579135FA
P 1600 3750
F 0 "C7" H 1625 3850 50  0000 L CNN
F 1 "100n" H 1625 3650 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 1638 3600 50  0001 C CNN
F 3 "" H 1600 3750 50  0000 C CNN
	1    1600 3750
	0    -1   -1   0   
$EndComp
Wire Wire Line
	5250 4050 4950 4050
Wire Wire Line
	5250 3950 4950 3950
Wire Wire Line
	5450 6900 5450 7100
Wire Wire Line
	4750 7000 4750 6900
Wire Wire Line
	4850 7000 4850 6900
Connection ~ 4850 7000
Wire Wire Line
	4950 7000 4950 6900
Connection ~ 4950 7000
Wire Wire Line
	5050 7000 5050 6900
Connection ~ 5050 7000
Wire Wire Line
	5150 7000 5150 6900
Connection ~ 5150 7000
Wire Wire Line
	5250 7000 5250 6900
Connection ~ 5250 7000
Wire Wire Line
	5350 7000 5350 6900
Connection ~ 5350 7000
Connection ~ 5450 7000
Wire Wire Line
	6850 2500 7150 2500
Wire Wire Line
	6850 5150 7150 5150
Wire Wire Line
	7150 2950 7050 2950
Wire Wire Line
	7050 2950 7050 3050
Wire Wire Line
	7150 5600 7050 5600
Wire Wire Line
	7050 5600 7050 5700
Wire Wire Line
	8550 1650 9650 1650
Wire Wire Line
	8550 1750 9650 1750
Wire Wire Line
	8550 1850 9650 1850
Wire Wire Line
	8550 1950 9650 1950
Wire Wire Line
	9650 2050 8550 2050
Wire Wire Line
	9650 2150 8550 2150
Wire Wire Line
	9650 2250 8550 2250
Wire Wire Line
	9650 2350 8550 2350
Wire Wire Line
	9650 4300 8550 4300
Wire Wire Line
	9650 4400 8550 4400
Wire Wire Line
	9650 4500 8550 4500
Wire Wire Line
	9650 4600 8550 4600
Wire Wire Line
	9650 4700 8550 4700
Wire Wire Line
	9650 4800 8550 4800
Wire Wire Line
	9650 4900 8550 4900
Wire Wire Line
	9650 5000 8550 5000
Wire Wire Line
	6750 4300 7150 4300
Wire Wire Line
	6750 1650 7150 1650
Wire Wire Line
	6850 1300 6850 1900
Wire Wire Line
	6850 3900 6850 4550
Wire Wire Line
	8850 2550 8550 2550
Wire Wire Line
	8850 2650 8550 2650
Wire Wire Line
	8850 2750 8550 2750
Wire Wire Line
	8900 5200 8550 5200
Wire Wire Line
	8900 5300 8550 5300
Wire Wire Line
	8900 5400 8550 5400
Wire Wire Line
	2350 4000 2700 4000
Wire Wire Line
	2350 3900 2700 3900
Connection ~ 6850 1650
Connection ~ 6850 4300
Wire Wire Line
	6450 4300 6350 4300
Wire Wire Line
	6350 1650 6450 1650
Wire Wire Line
	6850 1900 7150 1900
Wire Wire Line
	6850 4550 7150 4550
Wire Wire Line
	1300 6450 1800 6450
Wire Wire Line
	2300 6450 2100 6450
Wire Wire Line
	2200 6150 2200 6450
Connection ~ 2200 6450
Wire Wire Line
	1700 6150 1700 6450
Connection ~ 1700 6450
Wire Wire Line
	2100 6150 2200 6150
Wire Wire Line
	1800 6150 1700 6150
Wire Wire Line
	4750 7000 5450 7000
Wire Wire Line
	2100 1100 2100 1300
Wire Wire Line
	2000 1200 2100 1200
Connection ~ 2100 1200
Wire Wire Line
	1200 1200 1100 1200
Wire Wire Line
	1100 1100 1100 1300
Connection ~ 1100 1200
Wire Wire Line
	1100 1600 1100 1700
Wire Wire Line
	1100 1700 2100 1700
Wire Wire Line
	2100 1700 2100 1600
Wire Wire Line
	1600 1500 1600 1800
Connection ~ 1600 1700
Wire Wire Line
	2500 2550 2700 2550
Wire Wire Line
	2600 2550 2600 2300
Wire Wire Line
	2600 2000 2600 1900
Wire Wire Line
	3400 2100 3400 2300
Wire Wire Line
	3400 2200 4100 2200
Wire Wire Line
	4100 2200 4100 2300
Wire Wire Line
	4000 2300 4000 2200
Connection ~ 4000 2200
Wire Wire Line
	3750 2300 3750 2200
Connection ~ 3750 2200
Wire Wire Line
	3650 2300 3650 2200
Connection ~ 3650 2200
Wire Wire Line
	2700 3750 1750 3750
Wire Wire Line
	2250 3750 2250 3500
Connection ~ 2250 3750
$Comp
L GND #PWR017
U 1 1 57913AF1
P 1350 3750
F 0 "#PWR017" H 1350 3500 50  0001 C CNN
F 1 "GND" H 1350 3600 50  0000 C CNN
F 2 "" H 1350 3750 50  0000 C CNN
F 3 "" H 1350 3750 50  0000 C CNN
	1    1350 3750
	0    1    1    0   
$EndComp
Wire Wire Line
	1350 3750 1450 3750
$Comp
L C C11
U 1 1 57913D48
P 2350 2550
F 0 "C11" H 2375 2650 50  0000 L CNN
F 1 "100n" H 2375 2450 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 2388 2400 50  0001 C CNN
F 3 "" H 2350 2550 50  0000 C CNN
	1    2350 2550
	0    -1   -1   0   
$EndComp
Connection ~ 2600 2550
$Comp
L GND #PWR018
U 1 1 57913E99
P 2100 2550
F 0 "#PWR018" H 2100 2300 50  0001 C CNN
F 1 "GND" H 2100 2400 50  0000 C CNN
F 2 "" H 2100 2550 50  0000 C CNN
F 3 "" H 2100 2550 50  0000 C CNN
	1    2100 2550
	0    1    1    0   
$EndComp
Wire Wire Line
	2100 2550 2200 2550
$Comp
L Crystal_Small Y1
U 1 1 57914290
P 2150 3050
F 0 "Y1" H 2150 3150 50  0000 C CNN
F 1 "Crystal_Small" H 2150 2950 50  0000 C CNN
F 2 "crystal:crystal-EURO_3_5_1_BIGPAD" H 2150 3050 50  0001 C CNN
F 3 "" H 2150 3050 50  0000 C CNN
	1    2150 3050
	0    1    1    0   
$EndComp
Wire Wire Line
	2150 2950 2150 2850
Wire Wire Line
	1900 2850 2600 2850
Wire Wire Line
	2600 2850 2600 2950
Wire Wire Line
	2600 2950 2700 2950
Wire Wire Line
	2700 3150 2600 3150
Wire Wire Line
	2600 3150 2600 3250
Wire Wire Line
	2600 3250 1900 3250
Wire Wire Line
	2150 3250 2150 3150
$Comp
L C C8
U 1 1 5791464E
P 1750 2850
F 0 "C8" H 1775 2950 50  0000 L CNN
F 1 "22p" H 1775 2750 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 1788 2700 50  0001 C CNN
F 3 "" H 1750 2850 50  0000 C CNN
	1    1750 2850
	0    -1   -1   0   
$EndComp
$Comp
L C C9
U 1 1 579146CD
P 1750 3250
F 0 "C9" H 1775 3350 50  0000 L CNN
F 1 "22p" H 1775 3150 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 1788 3100 50  0001 C CNN
F 3 "" H 1750 3250 50  0000 C CNN
	1    1750 3250
	0    -1   -1   0   
$EndComp
Connection ~ 2150 2850
Connection ~ 2150 3250
$Comp
L GND #PWR019
U 1 1 579148D2
P 1400 3250
F 0 "#PWR019" H 1400 3000 50  0001 C CNN
F 1 "GND" H 1400 3100 50  0000 C CNN
F 2 "" H 1400 3250 50  0000 C CNN
F 3 "" H 1400 3250 50  0000 C CNN
	1    1400 3250
	0    1    1    0   
$EndComp
Wire Wire Line
	1600 3250 1400 3250
Wire Wire Line
	1600 2850 1500 2850
Wire Wire Line
	1500 2850 1500 3250
Connection ~ 1500 3250
$Comp
L R R4
U 1 1 57914D9E
P 5750 3100
F 0 "R4" V 5830 3100 50  0000 C CNN
F 1 "10k" V 5750 3100 50  0000 C CNN
F 2 "Capacitors_SMD:C_0805_HandSoldering" V 5680 3100 50  0001 C CNN
F 3 "" H 5750 3100 50  0000 C CNN
	1    5750 3100
	1    0    0    -1  
$EndComp
Wire Wire Line
	4950 2850 5950 2850
Wire Wire Line
	5750 2850 5750 2950
Wire Wire Line
	5750 3350 5750 3250
$Comp
L GND #PWR020
U 1 1 5791505A
P 5750 3350
F 0 "#PWR020" H 5750 3100 50  0001 C CNN
F 1 "GND" H 5750 3200 50  0000 C CNN
F 2 "" H 5750 3350 50  0000 C CNN
F 3 "" H 5750 3350 50  0000 C CNN
	1    5750 3350
	1    0    0    -1  
$EndComp
Wire Wire Line
	8550 5600 8900 5600
Text Label 8900 5600 0    60   ~ 0
nE
Wire Wire Line
	8850 2950 8550 2950
Text Label 8850 2950 0    60   ~ 0
nE
Connection ~ 5750 2850
Text Label 5950 2850 0    60   ~ 0
nE
$Comp
L C C13
U 1 1 57915A7A
P 3750 1350
F 0 "C13" H 3775 1450 50  0000 L CNN
F 1 "100n" H 3775 1250 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 3788 1200 50  0001 C CNN
F 3 "" H 3750 1350 50  0000 C CNN
	1    3750 1350
	1    0    0    -1  
$EndComp
$Comp
L C C14
U 1 1 57915B48
P 4050 1350
F 0 "C14" H 4075 1450 50  0000 L CNN
F 1 "100n" H 4075 1250 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 4088 1200 50  0001 C CNN
F 3 "" H 4050 1350 50  0000 C CNN
	1    4050 1350
	1    0    0    -1  
$EndComp
$Comp
L C C15
U 1 1 57915BC5
P 4350 1350
F 0 "C15" H 4375 1450 50  0000 L CNN
F 1 "100n" H 4375 1250 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 4388 1200 50  0001 C CNN
F 3 "" H 4350 1350 50  0000 C CNN
	1    4350 1350
	1    0    0    -1  
$EndComp
$Comp
L C C16
U 1 1 57915C25
P 4650 1350
F 0 "C16" H 4675 1450 50  0000 L CNN
F 1 "100n" H 4675 1250 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 4688 1200 50  0001 C CNN
F 3 "" H 4650 1350 50  0000 C CNN
	1    4650 1350
	1    0    0    -1  
$EndComp
$Comp
L C C12
U 1 1 57915C8A
P 3450 1350
F 0 "C12" H 3475 1450 50  0000 L CNN
F 1 "100n" H 3475 1250 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 3488 1200 50  0001 C CNN
F 3 "" H 3450 1350 50  0000 C CNN
	1    3450 1350
	1    0    0    -1  
$EndComp
Wire Wire Line
	3450 1000 3450 1200
Wire Wire Line
	3450 1100 4650 1100
Wire Wire Line
	4650 1100 4650 1200
Wire Wire Line
	4350 1200 4350 1100
Connection ~ 4350 1100
Wire Wire Line
	4050 1200 4050 1100
Connection ~ 4050 1100
Wire Wire Line
	3750 1200 3750 1100
Connection ~ 3750 1100
Wire Wire Line
	3450 1500 3450 1600
Wire Wire Line
	3450 1600 4650 1600
Wire Wire Line
	4650 1500 4650 1700
Wire Wire Line
	4350 1600 4350 1500
Connection ~ 4350 1600
Wire Wire Line
	4050 1600 4050 1500
Connection ~ 4050 1600
Wire Wire Line
	3750 1600 3750 1500
Connection ~ 3750 1600
$Comp
L GND #PWR021
U 1 1 57916607
P 4650 1700
F 0 "#PWR021" H 4650 1450 50  0001 C CNN
F 1 "GND" H 4650 1550 50  0000 C CNN
F 2 "" H 4650 1700 50  0000 C CNN
F 3 "" H 4650 1700 50  0000 C CNN
	1    4650 1700
	1    0    0    -1  
$EndComp
Connection ~ 4650 1600
$Comp
L +3.3V #PWR022
U 1 1 57916746
P 3400 2100
F 0 "#PWR022" H 3400 1950 50  0001 C CNN
F 1 "+3.3V" H 3400 2240 50  0000 C CNN
F 2 "" H 3400 2100 50  0000 C CNN
F 3 "" H 3400 2100 50  0000 C CNN
	1    3400 2100
	1    0    0    -1  
$EndComp
Connection ~ 3400 2200
$Comp
L +3.3V #PWR023
U 1 1 57916A1F
P 2600 4850
F 0 "#PWR023" H 2600 4700 50  0001 C CNN
F 1 "+3.3V" H 2600 4990 50  0000 C CNN
F 2 "" H 2600 4850 50  0000 C CNN
F 3 "" H 2600 4850 50  0000 C CNN
	1    2600 4850
	1    0    0    -1  
$EndComp
Wire Wire Line
	2400 4950 2700 4950
Wire Wire Line
	2600 4950 2600 4850
$Comp
L C C10
U 1 1 57916B74
P 2250 4950
F 0 "C10" H 2275 5050 50  0000 L CNN
F 1 "100n" H 2275 4850 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 2288 4800 50  0001 C CNN
F 3 "" H 2250 4950 50  0000 C CNN
	1    2250 4950
	0    -1   -1   0   
$EndComp
Connection ~ 2600 4950
$Comp
L GND #PWR024
U 1 1 57916DEB
P 2000 4950
F 0 "#PWR024" H 2000 4700 50  0001 C CNN
F 1 "GND" H 2000 4800 50  0000 C CNN
F 2 "" H 2000 4950 50  0000 C CNN
F 3 "" H 2000 4950 50  0000 C CNN
	1    2000 4950
	0    1    1    0   
$EndComp
Wire Wire Line
	2000 4950 2100 4950
Wire Wire Line
	800  7250 800  7150
Wire Wire Line
	1200 6950 1300 6950
Wire Wire Line
	1300 6950 1300 7050
$Comp
L R R1
U 1 1 579174A9
P 1700 6650
F 0 "R1" V 1780 6650 50  0000 C CNN
F 1 "22" V 1700 6650 50  0000 C CNN
F 2 "Capacitors_SMD:C_0805_HandSoldering" V 1630 6650 50  0001 C CNN
F 3 "" H 1700 6650 50  0000 C CNN
	1    1700 6650
	0    -1   -1   0   
$EndComp
$Comp
L R R2
U 1 1 579177D4
P 1700 6850
F 0 "R2" V 1780 6850 50  0000 C CNN
F 1 "22" V 1700 6850 50  0000 C CNN
F 2 "Capacitors_SMD:C_0805_HandSoldering" V 1630 6850 50  0001 C CNN
F 3 "" H 1700 6850 50  0000 C CNN
	1    1700 6850
	0    -1   -1   0   
$EndComp
Wire Wire Line
	1200 6650 1550 6650
Wire Wire Line
	1300 6750 1200 6750
Wire Wire Line
	1850 6650 2200 6650
Text Label 2200 6650 0    60   ~ 0
D-
Wire Wire Line
	1300 6550 1200 6550
Wire Wire Line
	1300 6150 1300 6550
Connection ~ 1300 6450
Wire Wire Line
	1300 6850 1550 6850
Wire Wire Line
	1300 6850 1300 6750
Wire Wire Line
	2200 6850 1850 6850
Text Label 2200 6850 0    60   ~ 0
D+
$Comp
L C C17
U 1 1 5791899F
P 1900 4150
F 0 "C17" H 1925 4250 50  0000 L CNN
F 1 "1µ" H 1925 4050 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 1938 4000 50  0001 C CNN
F 3 "" H 1900 4150 50  0000 C CNN
	1    1900 4150
	0    -1   -1   0   
$EndComp
$Comp
L GND #PWR025
U 1 1 57918A21
P 1650 4150
F 0 "#PWR025" H 1650 3900 50  0001 C CNN
F 1 "GND" H 1650 4000 50  0000 C CNN
F 2 "" H 1650 4150 50  0000 C CNN
F 3 "" H 1650 4150 50  0000 C CNN
	1    1650 4150
	0    1    1    0   
$EndComp
Wire Wire Line
	2700 4150 2050 4150
Wire Wire Line
	1750 4150 1650 4150
$Comp
L +3.3V #PWR026
U 1 1 5791C07D
P 3450 1000
F 0 "#PWR026" H 3450 850 50  0001 C CNN
F 1 "+3.3V" H 3450 1140 50  0000 C CNN
F 2 "" H 3450 1000 50  0000 C CNN
F 3 "" H 3450 1000 50  0000 C CNN
	1    3450 1000
	1    0    0    -1  
$EndComp
Connection ~ 3450 1100
Wire Wire Line
	5200 3150 4950 3150
Text Label 5200 3150 0    60   ~ 0
S0
Text Label 5200 3050 0    60   ~ 0
S1
Wire Wire Line
	5200 3050 4950 3050
Wire Wire Line
	5200 2950 4950 2950
Text Label 5200 2950 0    60   ~ 0
S2
$EndSCHEMATC