Bell.sch

$EndComp
Connection ~ 5750 3850
Wire Wire Line
	5750 3850 5750 3950
Wire Wire Line
	5050 3850 5750 3850
Text GLabel 5350 3650 1    50   Input ~ 0
Vtarget
Wire Wire Line
	5150 3750 5350 3750
Wire Wire Line
	5350 3750 5350 3650
$Comp
L Device:C C6
U 1 1 60CFD513
P 4750 4000
F 0 "C6" V 4700 4100 50  0000 C CNN
F 1 "100nF" V 4800 4150 50  0000 C CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 4788 3850 50  0001 C CNN
F 3 "~" H 4750 4000 50  0001 C CNN
	1    4750 4000
	1    0    0    1   
$EndComp
Wire Wire Line
	4950 3750 4750 3750
Wire Wire Line
	4750 3750 4750 3850
Connection ~ 4950 3750
Wire Wire Line
	4950 3750 4950 4250
$Comp
L power:GND #PWR0120
U 1 1 60D053A7
P 4750 4300
F 0 "#PWR0120" H 4750 4050 50  0001 C CNN
F 1 "GND" H 4755 4127 50  0000 C CNN
F 2 "" H 4750 4300 50  0001 C CNN
F 3 "" H 4750 4300 50  0001 C CNN
	1    4750 4300
	-1   0    0    -1  
$EndComp
Wire Wire Line
	4750 4150 4750 4300
$Comp
L Device:R R2
U 1 1 60D0EA91
P 2000 5250
F 0 "R2" V 1900 5400 50  0000 R CNN
F 1 "150" V 1900 5250 50  0000 R CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 1930 5250 50  0001 C CNN
F 3 "~" H 2000 5250 50  0001 C CNN
	1    2000 5250
	1    0    0    -1  
$EndComp
$Comp
L Device:LED D1
U 1 1 60D0EA97
P 2000 5650
F 0 "D1" V 1950 5500 50  0000 L CNN
F 1 "LED" V 2050 5450 50  0000 L CNN
F 2 "LED_SMD:LED_0603_1608Metric_Castellated" H 2000 5650 50  0001 C CNN
F 3 "~" H 2000 5650 50  0001 C CNN
	1    2000 5650
	0    -1   -1   0   
$EndComp
Wire Wire Line
	2000 5100 2000 5000
Wire Wire Line
	2000 5000 2200 5000
Wire Wire Line
	2000 5400 2000 5500
$Comp
L power:GND #PWR0121
U 1 1 60D0EAA0
P 2000 5900
F 0 "#PWR0121" H 2000 5650 50  0001 C CNN
F 1 "GND" H 2005 5727 50  0000 C CNN
F 2 "" H 2000 5900 50  0001 C CNN
F 3 "" H 2000 5900 50  0001 C CNN
	1    2000 5900
	1    0    0    -1  
$EndComp
Wire Wire Line
	2000 5800 2000 5900
Wire Wire Line
	2200 5000 2200 5100
Connection ~ 2200 5000
$Comp
L Device:R R8
U 1 1 60D3261E
P 6950 5250
F 0 "R8" V 7000 5500 50  0000 R CNN
F 1 "150" V 7000 5100 50  0000 R CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 6880 5250 50  0001 C CNN
F 3 "~" H 6950 5250 50  0001 C CNN
	1    6950 5250
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R9
U 1 1 60D32624
P 6950 5350
F 0 "R9" V 7000 5600 50  0000 R CNN
F 1 "150" V 7000 5200 50  0000 R CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 6880 5350 50  0001 C CNN
F 3 "~" H 6950 5350 50  0001 C CNN
	1    6950 5350
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R10
U 1 1 60D3262A
P 6950 5450
F 0 "R10" V 7000 5700 50  0000 R CNN
F 1 "150" V 7000 5300 50  0000 R CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 6880 5450 50  0001 C CNN
F 3 "~" H 6950 5450 50  0001 C CNN
	1    6950 5450
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R11
U 1 1 60D32630
P 6950 5550
F 0 "R11" V 7000 5800 50  0000 R CNN
F 1 "150" V 7000 5400 50  0000 R CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 6880 5550 50  0001 C CNN
F 3 "~" H 6950 5550 50  0001 C CNN
	1    6950 5550
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R12
U 1 1 60D3AAC9
P 6950 5650
F 0 "R12" V 7000 5900 50  0000 R CNN
F 1 "150" V 7000 5500 50  0000 R CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 6880 5650 50  0001 C CNN
F 3 "~" H 6950 5650 50  0001 C CNN
	1    6950 5650
	0    -1   -1   0   
$EndComp
Wire Wire Line
	6650 5250 6800 5250
Wire Wire Line
	6650 5350 6800 5350
Wire Wire Line
	6650 5450 6800 5450
Wire Wire Line
	6650 5550 6800 5550
Wire Wire Line
	6650 5650 6800 5650
$Comp
L Device:LED D3
U 1 1 60D677AC
P 7200 5900
F 0 "D3" V 7300 5750 50  0000 L CNN
F 1 "LED" V 7200 5700 50  0000 L CNN
F 2 "LED_SMD:LED_0603_1608Metric_Castellated" H 7200 5900 50  0001 C CNN
F 3 "~" H 7200 5900 50  0001 C CNN
	1    7200 5900
	0    -1   -1   0   
$EndComp
$Comp
L Device:LED D7
U 1 1 60D68714
P 8200 5900
F 0 "D7" V 8300 5750 50  0000 L CNN
F 1 "LED" V 8200 5700 50  0000 L CNN
F 2 "LED_SMD:LED_0603_1608Metric_Castellated" H 8200 5900 50  0001 C CNN
F 3 "~" H 8200 5900 50  0001 C CNN
	1    8200 5900
	0    -1   -1   0   
$EndComp
$Comp
L Device:LED D5
U 1 1 60D68AB9
P 7700 5900
F 0 "D5" V 7800 5750 50  0000 L CNN
F 1 "LED" V 7700 5700 50  0000 L CNN
F 2 "LED_SMD:LED_0603_1608Metric_Castellated" H 7700 5900 50  0001 C CNN
F 3 "~" H 7700 5900 50  0001 C CNN
	1    7700 5900
	0    -1   -1   0   
$EndComp
$Comp
L Device:LED D6
U 1 1 60D68D45
P 7950 5900
F 0 "D6" V 8050 5750 50  0000 L CNN
F 1 "LED" V 7950 5700 50  0000 L CNN
F 2 "LED_SMD:LED_0603_1608Metric_Castellated" H 7950 5900 50  0001 C CNN
F 3 "~" H 7950 5900 50  0001 C CNN
	1    7950 5900
	0    -1   -1   0   
$EndComp
$Comp
L Device:LED D4
U 1 1 60D68FB4
P 7450 5900
F 0 "D4" V 7550 5750 50  0000 L CNN
F 1 "LED" V 7450 5700 50  0000 L CNN
F 2 "LED_SMD:LED_0603_1608Metric_Castellated" H 7450 5900 50  0001 C CNN
F 3 "~" H 7450 5900 50  0001 C CNN
	1    7450 5900
	0    -1   -1   0   
$EndComp
Wire Wire Line
	7850 5000 7850 4900
Wire Wire Line
	7850 4900 7950 4900
Wire Wire Line
	7950 5150 8350 5150
Wire Wire Line
	7100 5250 8200 5250
Wire Wire Line
	8200 5250 8200 5750
Wire Wire Line
	7100 5350 7950 5350
Wire Wire Line
	7950 5350 7950 5750
Wire Wire Line
	7100 5450 7700 5450
Wire Wire Line
	7700 5450 7700 5750
Wire Wire Line
	7100 5550 7450 5550
Wire Wire Line
	7450 5550 7450 5750
Wire Wire Line
	7100 5650 7200 5650
Wire Wire Line
	7200 5650 7200 5750
$Comp
L power:GND #PWR0122
U 1 1 60DA3DA2
P 7700 6250
F 0 "#PWR0122" H 7700 6000 50  0001 C CNN
F 1 "GND" H 7705 6077 50  0000 C CNN
F 2 "" H 7700 6250 50  0001 C CNN
F 3 "" H 7700 6250 50  0001 C CNN
	1    7700 6250
	1    0    0    -1  
$EndComp
Wire Wire Line
	7200 6050 7200 6150
Wire Wire Line
	7200 6150 7450 6150
Wire Wire Line
	8200 6150 8200 6050
Wire Wire Line
	7450 6050 7450 6150
Connection ~ 7450 6150
Wire Wire Line
	7450 6150 7700 6150
Wire Wire Line
	7700 6250 7700 6150
Connection ~ 7700 6150
Wire Wire Line
	7700 6150 7950 6150
Wire Wire Line
	7700 6050 7700 6150
Wire Wire Line
	7950 6050 7950 6150
Connection ~ 7950 6150
Wire Wire Line
	7950 6150 8200 6150
$Comp
L Device:C C2
U 1 1 60DF1F72
P 4400 950
F 0 "C2" V 4350 1050 50  0000 C CNN
F 1 "22µF" V 4450 1100 50  0000 C CNN
F 2 "Capacitor_SMD:C_1210_3225Metric" H 4438 800 50  0001 C CNN
F 3 "~" H 4400 950 50  0001 C CNN
	1    4400 950 
	0    1    1    0   
$EndComp
Wire Wire Line
	3950 950  4250 950 
Wire Wire Line
	3950 950  3950 1200
Wire Wire Line
	4550 950  4700 950 
Wire Wire Line
	4700 950  4700 1200
Connection ~ 4700 1200
Wire Wire Line
	4700 1350 4850 1350
Connection ~ 4700 1350
Wire Wire Line
	4700 1350 4700 1450
Wire Wire Line
	3550 1100 3550 1200
Connection ~ 3550 1200
Wire Wire Line
	3550 1200 3950 1200
$Comp
L Connector:TestPoint TP1
U 1 1 60E7212C
P 3550 1300
F 0 "TP1" V 3500 1250 50  0000 L CNN
F 1 "TestPoint" V 3550 1500 50  0000 L CNN
F 2 "TripwireHook:HexPad_SMD" H 3750 1300 50  0001 C CNN
F 3 "~" H 3750 1300 50  0001 C CNN
	1    3550 1300
	-1   0    0    1   
$EndComp
Wire Wire Line
	3550 1200 3550 1300
$Comp
L Connector:TestPoint TP2
U 1 1 60E7E20F
P 3750 3100
F 0 "TP2" V 3700 3050 50  0000 L CNN
F 1 "TestPoint" V 3750 3300 50  0000 L CNN
F 2 "TripwireHook:HexPad_SMD" H 3950 3100 50  0001 C CNN
F 3 "~" H 3950 3100 50  0001 C CNN
	1    3750 3100
	-1   0    0    1   
$EndComp
Wire Wire Line
	3750 3100 3750 3000
Wire Wire Line
	3750 3000 3900 3000
Connection ~ 3900 3000
$Comp
L Device:R R1
U 1 1 60ABE9DD
P 1550 3600
F 0 "R1" H 1700 3650 50  0000 R CNN
F 1 "100K" H 1800 3550 50  0000 R CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 1480 3600 50  0001 C CNN
F 3 "~" H 1550 3600 50  0001 C CNN
	1    1550 3600
	-1   0    0    -1  
$EndComp
Text Notes 9650 5700 0    50   ~ 0
@10mA use:\n- 180Ω for blue\n- 280Ω for green\n- 320Ω for red
Wire Wire Line
	5150 3350 5150 3750
Wire Wire Line
	5050 3350 5050 3850
Wire Wire Line
	4950 3350 4950 3750
$Comp
L power:+5V #PWR02
U 1 1 60C81E29
P 4750 3500
F 0 "#PWR02" H 4750 3350 50  0001 C CNN
F 1 "+5V" H 4765 3673 50  0000 C CNN
F 2 "" H 4750 3500 50  0001 C CNN
F 3 "" H 4750 3500 50  0001 C CNN
	1    4750 3500
	-1   0    0    1   
$EndComp
Wire Wire Line
	4750 3350 4750 3500
Text GLabel 4850 3350 3    50   Input ~ 0
VT_D
Text GLabel 4650 3350 3    50   Input ~ 0
3V3_D
Text GLabel 2900 4050 0    50   Input ~ 0
3V3_D
Text GLabel 2900 4250 0    50   Input ~ 0
VT_D
$Comp
L Device:R R18
U 1 1 60C9B8B7
P 3150 4050
F 0 "R18" V 3250 4300 50  0000 R CNN
F 1 "150" V 3250 4100 50  0000 R CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 3080 4050 50  0001 C CNN
F 3 "~" H 3150 4050 50  0001 C CNN
	1    3150 4050
	0    -1   -1   0   
$EndComp
$Comp
L Device:LED D12
U 1 1 60C9BC38
P 3550 4050
F 0 "D12" H 3650 4000 50  0000 L CNN
F 1 "LED" H 3450 3950 50  0000 L CNN
F 2 "LED_SMD:LED_0603_1608Metric_Castellated" H 3550 4050 50  0001 C CNN
F 3 "~" H 3550 4050 50  0001 C CNN
	1    3550 4050
	-1   0    0    1   
$EndComp
$Comp
L Device:R R19
U 1 1 60C9CACD
P 3150 4250
F 0 "R19" V 3050 4500 50  0000 R CNN
F 1 "150" V 3050 4300 50  0000 R CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 3080 4250 50  0001 C CNN
F 3 "~" H 3150 4250 50  0001 C CNN
	1    3150 4250
	0    -1   -1   0   
$EndComp
$Comp
L Device:LED D13
U 1 1 60C9D66D
P 3550 4250
F 0 "D13" H 3650 4200 50  0000 L CNN
F 1 "LED" H 3450 4350 50  0000 L CNN
F 2 "LED_SMD:LED_0603_1608Metric_Castellated" H 3550 4250 50  0001 C CNN
F 3 "~" H 3550 4250 50  0001 C CNN
	1    3550 4250
	-1   0    0    1   
$EndComp
Wire Wire Line
	2900 4050 3000 4050
Wire Wire Line
	3300 4050 3400 4050
Wire Wire Line
	2900 4250 3000 4250
Wire Wire Line
	3300 4250 3400 4250
$Comp
L power:GND #PWR01
U 1 1 60CD137D
P 3900 4150
F 0 "#PWR01" H 3900 3900 50  0001 C CNN
F 1 "GND" H 3905 3977 50  0000 C CNN
F 2 "" H 3900 4150 50  0001 C CNN
F 3 "" H 3900 4150 50  0001 C CNN
	1    3900 4150
	0    -1   -1   0   
$EndComp
Wire Wire Line
	3700 4050 3800 4050
Wire Wire Line
	3800 4050 3800 4150
Wire Wire Line
	3800 4250 3700 4250
Wire Wire Line
	3800 4150 3900 4150
Connection ~ 3800 4150
Wire Wire Line
	3800 4150 3800 4250
Wire Wire Line
	8350 5150 8350 5250
Wire Wire Line
	8350 5250 8500 5250
Wire Wire Line
	8500 5250 8500 5150
Wire Wire Line
	8950 5400 8750 5400
Wire Wire Line
	8950 5150 8950 5400
Wire Wire Line
	8950 5400 8950 5500
Connection ~ 8950 5400
Wire Wire Line
	8450 5400 8350 5400
Wire Wire Line
	8350 5400 8350 5250
Connection ~ 8350 5250
$Comp
L Device:C C11
U 1 1 60D11412
P 4400 700
F 0 "C11" V 4350 800 50  0000 C CNN
F 1 "1µF" V 4450 850 50  0000 C CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 4438 550 50  0001 C CNN
F 3 "~" H 4400 700 50  0001 C CNN
	1    4400 700 
	0    1    1    0   
$EndComp
Wire Wire Line
	4250 700  3950 700 
Wire Wire Line
	3950 700  3950 950 
Connection ~ 3950 950 
Wire Wire Line
	4550 700  4700 700 
Wire Wire Line
	4700 700  4700 950 
Connection ~ 4700 950 
$EndSCHEMATC