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 Sensor_Optical:TEPT4400 Q1
U 1 1 60A2B0B3
P 3600 2450
F 0 "Q1" V 3950 2400 50  0000 L CNN
F 1 "Liteon LTH-301" V 3800 2250 50  0000 L CNN
F 2 "LED_THT:LED_D3.0mm_Clear" H 4080 2310 50  0001 C CNN
F 3 "https://www.vishay.com/docs/81341/tept4400.pdf" H 3600 2450 50  0001 C CNN
	1    3600 2450
	0    1    1    0   
$EndComp
$Comp
L Device:LED D1
U 1 1 60A2B812
P 3600 2000
F 0 "D1" V 3593 1882 50  0001 R CNN
F 1 "LED" V 3638 1882 50  0001 R CNN
F 2 "" H 3600 2000 50  0001 C CNN
F 3 "~" H 3600 2000 50  0001 C CNN
	1    3600 2000
	1    0    0    -1  
$EndComp
$Comp
L Device:R R2
U 1 1 60A2D950
P 4300 1650
F 0 "R2" H 4370 1696 50  0000 L CNN
F 1 "10k" H 4370 1605 50  0000 L CNN
F 2 "" V 4230 1650 50  0001 C CNN
F 3 "~" H 4300 1650 50  0001 C CNN
	1    4300 1650
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR02
U 1 1 60A2E84D
P 4300 1400
F 0 "#PWR02" H 4300 1250 50  0001 C CNN
F 1 "+3V3" H 4315 1573 50  0000 C CNN
F 2 "" H 4300 1400 50  0001 C CNN
F 3 "" H 4300 1400 50  0001 C CNN
	1    4300 1400
	1    0    0    -1  
$EndComp
Wire Wire Line
	4300 1400 4300 1500
$Comp
L Device:R R1
U 1 1 60A2EE08
P 3850 1650
F 0 "R1" H 3920 1696 50  0000 L CNN
F 1 "220" H 3920 1605 50  0000 L CNN
F 2 "" V 3780 1650 50  0001 C CNN
F 3 "~" H 3850 1650 50  0001 C CNN
	1    3850 1650
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR01
U 1 1 60A35122
P 3250 2900
F 0 "#PWR01" H 3250 2650 50  0001 C CNN
F 1 "GND" H 3255 2727 50  0000 C CNN
F 2 "" H 3250 2900 50  0001 C CNN
F 3 "" H 3250 2900 50  0001 C CNN
	1    3250 2900
	1    0    0    -1  
$EndComp
Wire Wire Line
	3450 2000 3250 2000
Wire Wire Line
	3250 2000 3250 2550
Wire Wire Line
	3400 2550 3250 2550
Connection ~ 3250 2550
Wire Wire Line
	3250 2550 3250 2900
$Comp
L Sensor_Optical:TEPT4400 Q2
U 1 1 60A3A22F
P 4950 2450
F 0 "Q2" V 5300 2400 50  0000 L CNN
F 1 "Liteon LTH-301" V 5150 2250 50  0000 L CNN
F 2 "LED_THT:LED_D3.0mm_Clear" H 5430 2310 50  0001 C CNN
F 3 "https://www.vishay.com/docs/81341/tept4400.pdf" H 4950 2450 50  0001 C CNN
	1    4950 2450
	0    -1   1    0   
$EndComp
$Comp
L Device:LED D2
U 1 1 60A3A239
P 4950 2000
F 0 "D2" V 4943 1882 50  0001 R CNN
F 1 "LED" V 4988 1882 50  0001 R CNN
F 2 "" H 4950 2000 50  0001 C CNN
F 3 "~" H 4950 2000 50  0001 C CNN
	1    4950 2000
	-1   0    0    -1  
$EndComp
$Comp
L power:GND #PWR03
U 1 1 60A3A243
P 5300 2900
F 0 "#PWR03" H 5300 2650 50  0001 C CNN
F 1 "GND" H 5305 2727 50  0000 C CNN
F 2 "" H 5300 2900 50  0001 C CNN
F 3 "" H 5300 2900 50  0001 C CNN
	1    5300 2900
	-1   0    0    -1  
$EndComp
Wire Wire Line
	5100 2000 5300 2000
Wire Wire Line
	5300 2000 5300 2550
Wire Wire Line
	5150 2550 5300 2550
Connection ~ 5300 2550
Wire Wire Line
	5300 2550 5300 2900
$Comp
L Device:R R3
U 1 1 60A4C720
P 4700 1650
F 0 "R3" H 4770 1696 50  0000 L CNN
F 1 "220" H 4770 1605 50  0000 L CNN
F 2 "" V 4630 1650 50  0001 C CNN
F 3 "~" H 4700 1650 50  0001 C CNN
	1    4700 1650
	1    0    0    -1  
$EndComp
Wire Wire Line
	4800 2000 4700 2000
Wire Wire Line
	4700 2000 4700 1800
Wire Wire Line
	3850 1800 3850 2000
Wire Wire Line
	3850 2000 3750 2000
Wire Wire Line
	4300 1800 4300 1850
Wire Wire Line
	4300 2550 3800 2550
Wire Wire Line
	4300 2550 4750 2550
Connection ~ 4300 2550
Text GLabel 3850 1500 1    50   Input ~ 0
OUTPUT_1
Text GLabel 4700 1500 1    50   Input ~ 0
OUTPUT_2
Text GLabel 5550 1850 2    50   Input ~ 0
ADC_INPUT
Wire Wire Line
	5550 1850 4300 1850
Connection ~ 4300 1850
Wire Wire Line
	4300 1850 4300 2550
$EndSCHEMATC