kicad/ThermFerm.sch

EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title "ThermFerm"
Date "2021-05-28"
Rev "1.1"
Comp "MBSE"
Comment1 "Raspberry GPIO extension"
Comment2 "Raspberry GPIO extension"
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Connector_Generic:Conn_02x13_Odd_Even HD101
U 1 1 60AD4543
P 2700 2900
F 0 "HD101" H 2750 3717 50  0000 C CNN
F 1 "Rpi GPIO" H 2750 3626 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_2x13_P2.54mm_Vertical" H 2750 3625 50  0001 C CNN
F 3 "~" H 2700 2900 50  0001 C CNN
	1    2700 2900
	1    0    0    -1  
$EndComp
$Comp
L Connector_Generic:Conn_02x04_Odd_Even HD102
U 1 1 60AD7C81
P 2700 4450
F 0 "HD102" H 2750 4767 50  0000 C CNN
F 1 "ToFront" H 2750 4676 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical" H 2700 4450 50  0001 C CNN
F 3 "~" H 2700 4450 50  0001 C CNN
	1    2700 4450
	1    0    0    -1  
$EndComp
$Comp
L Connector_Generic:Conn_01x04 HD103
U 1 1 60AD8C25
P 1100 2300
F 0 "HD103" H 1018 2617 50  0000 C CNN
F 1 "I2C bus" H 1018 2526 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical" H 1100 2300 50  0001 C CNN
F 3 "~" H 1100 2300 50  0001 C CNN
	1    1100 2300
	-1   0    0    -1  
$EndComp
$Comp
L Connector:Screw_Terminal_01x02 J2
U 1 1 60ADA4D6
P 6450 2400
F 0 "J2" H 6530 2392 50  0000 L CNN
F 1 "12 Volt" H 6530 2301 50  0000 L CNN
F 2 "TerminalBlock:TerminalBlock_Altech_AK300-2_P5.00mm" H 6450 2400 50  0001 C CNN
F 3 "~" H 6450 2400 50  0001 C CNN
	1    6450 2400
	1    0    0    -1  
$EndComp
Wire Wire Line
	2500 2400 1300 2400
Wire Wire Line
	1300 2500 2500 2500
NoConn ~ 2500 3400
NoConn ~ 2500 3300
NoConn ~ 2500 3200
NoConn ~ 3000 3400
NoConn ~ 3000 3500
NoConn ~ 3000 2600
NoConn ~ 3000 2700
NoConn ~ 3000 2800
Wire Wire Line
	3000 2500 3250 2500
Wire Wire Line
	3250 2500 3250 2900
Wire Wire Line
	3250 2900 3000 2900
Wire Wire Line
	3250 2900 3250 3200
Wire Wire Line
	3250 3200 3000 3200
Connection ~ 3250 2900
Wire Wire Line
	2500 2700 2250 2700
Wire Wire Line
	2250 2700 2250 3500
Wire Wire Line
	2250 3500 2500 3500
Wire Wire Line
	2250 3500 2250 3650
Wire Wire Line
	2250 3650 3250 3650
Wire Wire Line
	3250 3650 3250 3200
Connection ~ 2250 3500
Connection ~ 3250 3200
Wire Wire Line
	2250 2700 2250 2200
Wire Wire Line
	2250 2200 1300 2200
Connection ~ 2250 2700
Wire Wire Line
	3000 2400 3150 2400
Wire Wire Line
	3150 2400 3150 2300
Wire Wire Line
	3150 2300 3000 2300
Wire Wire Line
	1300 2300 1450 2300
Wire Wire Line
	1450 2300 1450 1900
Wire Wire Line
	1450 1900 2150 1900
Wire Wire Line
	3150 1900 3150 2300
Connection ~ 3150 2300
Text Label 2300 2400 0    50   ~ 0
SDA
Text Label 2300 2500 0    50   ~ 0
SCL
Connection ~ 2250 2200
Connection ~ 2150 1900
Wire Wire Line
	2150 1900 3150 1900
Wire Wire Line
	2050 2800 2500 2800
Text Label 2500 2800 2    50   ~ 0
GPIO0
$Comp
L Device:C_Small C101
U 1 1 60AFC7CC
P 3550 2400
F 0 "C101" H 3642 2446 50  0000 L CNN
F 1 "22nF" H 3642 2355 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm" H 3550 2400 50  0001 C CNN
F 3 "~" H 3550 2400 50  0001 C CNN
	1    3550 2400
	1    0    0    -1  
$EndComp
Wire Wire Line
	2400 1500 2150 1500
Connection ~ 2150 1500
Wire Wire Line
	2150 1500 2150 1900
Wire Wire Line
	2500 3100 2150 3100
Wire Wire Line
	2150 3100 2150 2300
Wire Wire Line
	2150 2300 2500 2300
Text Label 2300 2300 0    50   ~ 0
3v3
Text Label 3000 2300 0    50   ~ 0
5V
Wire Wire Line
	3550 2500 3250 2500
Connection ~ 3250 2500
Wire Wire Line
	2150 2300 2150 2000
Wire Wire Line
	2150 2000 3550 2000
Wire Wire Line
	3550 2000 3550 2300
Connection ~ 2150 2300
$Comp
L Device:R R103
U 1 1 60B027AF
P 3550 2900
F 0 "R103" V 3757 2900 50  0000 C CNN
F 1 "1K" V 3666 2900 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical" V 3480 2900 50  0001 C CNN
F 3 "~" H 3550 2900 50  0001 C CNN
	1    3550 2900
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R104
U 1 1 60B02DB0
P 3550 3250
F 0 "R104" V 3757 3250 50  0000 C CNN
F 1 "1K" V 3666 3250 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical" V 3480 3250 50  0001 C CNN
F 3 "~" H 3550 3250 50  0001 C CNN
	1    3550 3250
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R105
U 1 1 60B03C8A
P 3550 3600
F 0 "R105" V 3757 3600 50  0000 C CNN
F 1 "1K" V 3666 3600 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical" V 3480 3600 50  0001 C CNN
F 3 "~" H 3550 3600 50  0001 C CNN
	1    3550 3600
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R106
U 1 1 60B042F9
P 4150 2900
F 0 "R106" V 4357 2900 50  0000 C CNN
F 1 "10K" V 4266 2900 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical" V 4080 2900 50  0001 C CNN
F 3 "~" H 4150 2900 50  0001 C CNN
	1    4150 2900
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R107
U 1 1 60B04E02
P 4150 3250
F 0 "R107" V 4357 3250 50  0000 C CNN
F 1 "10K" V 4266 3250 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical" V 4080 3250 50  0001 C CNN
F 3 "~" H 4150 3250 50  0001 C CNN
	1    4150 3250
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R108
U 1 1 60B055C7
P 4150 3600
F 0 "R108" V 4357 3600 50  0000 C CNN
F 1 "10K" V 4266 3600 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical" V 4080 3600 50  0001 C CNN
F 3 "~" H 4150 3600 50  0001 C CNN
	1    4150 3600
	0    -1   -1   0   
$EndComp
Wire Wire Line
	3000 3000 3350 3000
Wire Wire Line
	3350 3000 3350 2900
Wire Wire Line
	3350 2900 3400 2900
Wire Wire Line
	3000 3100 3350 3100
Wire Wire Line
	3350 3100 3350 3250
Wire Wire Line
	3350 3250 3400 3250
Wire Wire Line
	3000 3300 3350 3300
Wire Wire Line
	3350 3300 3350 3600
Wire Wire Line
	3350 3600 3400 3600
Wire Wire Line
	3700 3600 3750 3600
Wire Wire Line
	3700 3250 3850 3250
Wire Wire Line
	3700 2900 3950 2900
Wire Wire Line
	4300 3600 4350 3600
Wire Wire Line
	4350 3600 4350 3250
Wire Wire Line
	4350 3250 4300 3250
Wire Wire Line
	4350 3250 4350 2900
Wire Wire Line
	4350 2900 4300 2900
Connection ~ 4350 3250
Wire Wire Line
	3750 3600 3750 4350
Wire Wire Line
	3750 4350 3000 4350
Connection ~ 3750 3600
Wire Wire Line
	3750 3600 4000 3600
Wire Wire Line
	3000 4450 3850 4450
Wire Wire Line
	3850 4450 3850 3250
Connection ~ 3850 3250
Wire Wire Line
	3850 3250 4000 3250
Wire Wire Line
	3000 4550 3950 4550
Wire Wire Line
	3950 4550 3950 2900
Connection ~ 3950 2900
Wire Wire Line
	3950 2900 4000 2900
Wire Wire Line
	2500 4650 2250 4650
Wire Wire Line
	2250 4650 2250 3650
Connection ~ 2250 3650
$Comp
L Device:R R109
U 1 1 60B1CCE4
P 2750 3950
F 0 "R109" V 2957 3950 50  0000 C CNN
F 1 "220" V 2866 3950 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical" V 2680 3950 50  0001 C CNN
F 3 "~" H 2750 3950 50  0001 C CNN
	1    2750 3950
	0    -1   -1   0   
$EndComp
Wire Wire Line
	3000 4650 3100 4650
Wire Wire Line
	3100 4650 3100 3950
Wire Wire Line
	3100 3950 2900 3950
Wire Wire Line
	2500 2900 2350 2900
Wire Wire Line
	2350 2900 2350 3950
Wire Wire Line
	2350 3950 2600 3950
Text Label 3000 3000 0    50   ~ 0
GPIO4
Text Label 3000 3100 0    50   ~ 0
GPIO5
Text Label 3000 3300 0    50   ~ 0
GPIO6
Text Label 2500 2900 2    50   ~ 0
GPIO2
Wire Wire Line
	2500 3000 2050 3000
Wire Wire Line
	2050 3000 2050 4550
Wire Wire Line
	2050 4550 2500 4550
Text Label 2500 3000 2    50   ~ 0
GPIO3
Wire Wire Line
	2150 3100 2150 4150
Wire Wire Line
	2150 4450 2500 4450
Connection ~ 2150 3100
$Comp
L Device:R R102
U 1 1 60B271E8
P 1700 4350
F 0 "R102" H 1900 4400 50  0000 C CNN
F 1 "4K7" H 1900 4300 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical" V 1630 4350 50  0001 C CNN
F 3 "~" H 1700 4350 50  0001 C CNN
	1    1700 4350
	1    0    0    -1  
$EndComp
NoConn ~ 2500 4350
Wire Wire Line
	4350 2900 4350 2350
Wire Wire Line
	4350 2000 3550 2000
Connection ~ 4350 2900
Connection ~ 3550 2000
$Comp
L Device:R R101
U 1 1 60B0A642
P 3800 1250
F 0 "R101" H 3870 1296 50  0000 L CNN
F 1 "2K7" H 3870 1205 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical" V 3730 1250 50  0001 C CNN
F 3 "~" H 3800 1250 50  0001 C CNN
	1    3800 1250
	1    0    0    -1  
$EndComp
$Comp
L Diode:1N4148 D101
U 1 1 60B0B65F
P 3250 1250
F 0 "D101" V 3204 1330 50  0000 L CNN
F 1 "1N4148" V 3295 1330 50  0000 L CNN
F 2 "Diode_THT:D_DO-35_SOD27_P2.54mm_Vertical_AnodeUp" H 3250 1075 50  0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 3250 1250 50  0001 C CNN
	1    3250 1250
	0    1    1    0   
$EndComp
$Comp
L Diode:1N4148 D102
U 1 1 60B12CC9
P 3250 1650
F 0 "D102" V 3204 1730 50  0000 L CNN
F 1 "1N4148" V 3295 1730 50  0000 L CNN
F 2 "Diode_THT:D_DO-35_SOD27_P2.54mm_Vertical_AnodeUp" H 3250 1475 50  0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 3250 1650 50  0001 C CNN
	1    3250 1650
	0    1    1    0   
$EndComp
$Comp
L Diode:1N4148 D103
U 1 1 60B1411A
P 4450 2100
F 0 "D103" V 4404 2180 50  0000 L CNN
F 1 "1N4148" V 4495 2180 50  0000 L CNN
F 2 "Diode_THT:D_DO-35_SOD27_P2.54mm_Vertical_AnodeUp" H 4450 1925 50  0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 4450 2100 50  0001 C CNN
	1    4450 2100
	0    1    1    0   
$EndComp
Wire Wire Line
	3250 2500 3250 1800
Wire Wire Line
	3250 1500 3250 1450
Wire Wire Line
	3250 1800 4450 1800
Wire Wire Line
	4450 1800 4450 1550
Wire Wire Line
	4450 1550 6250 1550
Connection ~ 3250 1800
Wire Wire Line
	3250 1100 3250 1050
Wire Wire Line
	3250 1050 3800 1050
Wire Wire Line
	4450 1050 4450 1350
Wire Wire Line
	4450 1350 6250 1350
Wire Wire Line
	3800 1100 3800 1050
Connection ~ 3800 1050
Wire Wire Line
	3800 1050 4450 1050
Wire Wire Line
	6250 1450 3800 1450
Connection ~ 3250 1450
Wire Wire Line
	3250 1450 3250 1400
Wire Wire Line
	3800 1450 3800 1400
Connection ~ 3800 1450
Wire Wire Line
	3800 1450 3250 1450
Wire Wire Line
	2500 2600 1950 2600
Wire Wire Line
	1950 2600 1950 1800
Wire Wire Line
	1950 1800 3150 1800
Wire Wire Line
	3150 1800 3150 1450
Wire Wire Line
	3150 1450 3250 1450
Wire Wire Line
	3150 1900 4450 1900
Wire Wire Line
	4450 1900 4450 1950
Connection ~ 3150 1900
Wire Wire Line
	4450 2250 4450 2350
Wire Wire Line
	4450 2350 4350 2350
Connection ~ 4350 2350
Wire Wire Line
	4350 2350 4350 2000
$Comp
L Device:C_Small C102
U 1 1 60AFBAAD
P 2400 1400
F 0 "C102" H 2492 1446 50  0000 L CNN
F 1 "22nF" H 2492 1355 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm" H 2400 1400 50  0001 C CNN
F 3 "~" H 2400 1400 50  0001 C CNN
	1    2400 1400
	1    0    0    -1  
$EndComp
Connection ~ 2250 1300
Wire Wire Line
	2400 1300 2250 1300
Wire Wire Line
	2250 2200 2250 1300
Wire Wire Line
	2150 1300 2150 1500
Wire Wire Line
	2050 1300 2050 2800
$Comp
L Stavros-sensors:RF_Transmitter_433_MHz SP101
U 1 1 60AEBB4A
P 2150 1300
F 0 "SP101" H 2378 1645 60  0000 L CNN
F 1 "MX-FS-03V" H 2378 1539 60  0000 L CNN
F 2 "Stavros-sensors:RF_Transmitter_433_MHz" H 2378 1486 60  0001 L CNN
F 3 "" H 2150 1300 60  0001 C CNN
F 4 "433 MHz transmitter" H 2400 1800 50  0000 L CNN "Comment"
	1    2150 1300
	1    0    0    -1  
$EndComp
$Comp
L Connector:Screw_Terminal_01x03 J1
U 1 1 60AD9924
P 6450 1450
F 0 "J1" H 6530 1492 50  0000 L CNN
F 1 "1-wire" H 6530 1401 50  0000 L CNN
F 2 "TerminalBlock:TerminalBlock_Altech_AK300-3_P5.00mm" H 6450 1450 50  0001 C CNN
F 3 "~" H 6450 1450 50  0001 C CNN
	1    6450 1450
	1    0    0    1   
$EndComp
$Comp
L Regulator_Switching:LM2575-5.0BU U1
U 1 1 60B74866
P 5450 2500
F 0 "U1" H 5450 2867 50  0000 C CNN
F 1 "12-5 V module" H 5450 2776 50  0000 C CNN
F 2 "Package_TO_SOT_SMD:TO-263-5_TabPin3" H 5450 2250 50  0001 L CIN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/lm2575.pdf" H 5450 2500 50  0001 C CNN
	1    5450 2500
	-1   0    0    -1  
$EndComp
Wire Wire Line
	4450 1900 4900 1900
Wire Wire Line
	4900 1900 4900 2400
Wire Wire Line
	4900 2400 4950 2400
Connection ~ 4450 1900
Wire Wire Line
	4900 2400 4900 2600
Wire Wire Line
	4900 2600 4950 2600
Connection ~ 4900 2400
Wire Wire Line
	5950 2400 6100 2400
Wire Wire Line
	5450 2800 5450 2900
Wire Wire Line
	5450 2900 6100 2900
Wire Wire Line
	6100 2900 6100 2600
Wire Wire Line
	6100 2500 6250 2500
Wire Wire Line
	5950 2600 6100 2600
Connection ~ 6100 2600
Wire Wire Line
	6100 2600 6100 2500
Wire Wire Line
	3250 3650 3250 3750
Wire Wire Line
	3250 3750 5450 3750
Wire Wire Line
	5450 3750 5450 2900
Connection ~ 3250 3650
Connection ~ 5450 2900
$Comp
L power:GND #PWR0101
U 1 1 60B9566F
P 6100 2900
F 0 "#PWR0101" H 6100 2650 50  0001 C CNN
F 1 "GND" H 6105 2727 50  0000 C CNN
F 2 "" H 6100 2900 50  0001 C CNN
F 3 "" H 6100 2900 50  0001 C CNN
	1    6100 2900
	1    0    0    -1  
$EndComp
Connection ~ 6100 2900
$Comp
L power:+12V #PWR0102
U 1 1 60B96BB6
P 6100 2400
F 0 "#PWR0102" H 6100 2250 50  0001 C CNN
F 1 "+12V" H 6115 2573 50  0000 C CNN
F 2 "" H 6100 2400 50  0001 C CNN
F 3 "" H 6100 2400 50  0001 C CNN
	1    6100 2400
	1    0    0    -1  
$EndComp
Connection ~ 6100 2400
Wire Wire Line
	6100 2400 6250 2400
$Comp
L Connector_Generic:Conn_02x04_Odd_Even HD202
U 1 1 60B97565
P 2650 6250
F 0 "HD202" H 2700 6567 50  0000 C CNN
F 1 "Front" H 2700 6476 50  0000 C CNN
F 2 "Connector_PinSocket_2.54mm:PinSocket_2x04_P2.54mm_Vertical" H 2650 6250 50  0001 C CNN
F 3 "~" H 2650 6250 50  0001 C CNN
	1    2650 6250
	1    0    0    -1  
$EndComp
NoConn ~ 2450 6150
$Comp
L Device:LED L201
U 1 1 60BA4085
P 3050 6650
F 0 "L201" V 3089 6532 50  0000 R CNN
F 1 "LED" V 2998 6532 50  0000 R CNN
F 2 "" H 3050 6650 50  0001 C CNN
F 3 "~" H 3050 6650 50  0001 C CNN
	1    3050 6650
	0    -1   -1   0   
$EndComp
$Comp
L Switch:SW_Push SW201
U 1 1 60BA458E
P 3500 6650
F 0 "SW201" V 3546 6602 50  0000 R CNN
F 1 "Up" V 3455 6602 50  0000 R CNN
F 2 "" H 3500 6850 50  0001 C CNN
F 3 "~" H 3500 6850 50  0001 C CNN
	1    3500 6650
	0    -1   -1   0   
$EndComp
$Comp
L Switch:SW_Push SW202
U 1 1 60BA4E49
P 3950 6650
F 0 "SW202" V 3996 6602 50  0000 R CNN
F 1 "Down" V 3905 6602 50  0000 R CNN
F 2 "" H 3950 6850 50  0001 C CNN
F 3 "~" H 3950 6850 50  0001 C CNN
	1    3950 6650
	0    -1   -1   0   
$EndComp
$Comp
L Switch:SW_Push SW203
U 1 1 60BA570E
P 4400 6650
F 0 "SW203" V 4446 6602 50  0000 R CNN
F 1 "Enter" V 4355 6602 50  0000 R CNN
F 2 "" H 4400 6850 50  0001 C CNN
F 3 "~" H 4400 6850 50  0001 C CNN
	1    4400 6650
	0    -1   -1   0   
$EndComp
$Comp
L Sensor:DHT11 U201
U 1 1 60BA653C
P 1900 5850
F 0 "U201" H 1656 5896 50  0000 R CNN
F 1 "DHT11" H 1656 5805 50  0000 R CNN
F 2 "Sensor:Aosong_DHT11_5.5x12.0_P2.54mm" H 1900 5450 50  0001 C CNN
F 3 "http://akizukidenshi.com/download/ds/aosong/DHT11.pdf" H 2050 6100 50  0001 C CNN
	1    1900 5850
	1    0    0    -1  
$EndComp
Wire Wire Line
	2950 6450 3050 6450
Wire Wire Line
	3050 6450 3050 6500
Wire Wire Line
	3500 6450 3500 6150
Wire Wire Line
	3500 6150 2950 6150
Wire Wire Line
	2950 6250 3950 6250
Wire Wire Line
	3950 6250 3950 6450
Wire Wire Line
	2950 6350 4400 6350
Wire Wire Line
	4400 6350 4400 6450
Wire Wire Line
	3500 6850 3500 6900
Wire Wire Line
	3500 6900 3050 6900
Wire Wire Line
	1900 6900 1900 6150
Wire Wire Line
	2450 6450 2350 6450
Wire Wire Line
	2350 6450 2350 6900
Connection ~ 2350 6900
Wire Wire Line
	2350 6900 1900 6900
Wire Wire Line
	3050 6800 3050 6900
Connection ~ 3050 6900
Wire Wire Line
	3050 6900 2350 6900
Wire Wire Line
	3500 6900 3950 6900
Wire Wire Line
	3950 6900 3950 6850
Connection ~ 3500 6900
Wire Wire Line
	3950 6900 4400 6900
Wire Wire Line
	4400 6900 4400 6850
Connection ~ 3950 6900
Wire Wire Line
	2450 6250 2350 6250
Wire Wire Line
	2350 6250 2350 5450
Wire Wire Line
	2350 5450 1900 5450
Wire Wire Line
	1900 5450 1900 5550
Wire Wire Line
	2200 5850 2250 5850
Wire Wire Line
	2250 5850 2250 6350
Wire Wire Line
	2250 6350 2450 6350
Wire Wire Line
	2050 4550 1700 4550
Wire Wire Line
	1700 4550 1700 4500
Connection ~ 2050 4550
Wire Wire Line
	1700 4200 1700 4150
Wire Wire Line
	1700 4150 2150 4150
Connection ~ 2150 4150
Wire Wire Line
	2150 4150 2150 4450
Wire Notes Line
	6850 650  6850 4800
Wire Notes Line
	6850 4800 850  4800
Wire Notes Line
	850  4800 850  650 
Wire Notes Line
	850  650  6850 650 
Wire Notes Line
	1300 5350 4750 5350
Wire Notes Line
	4750 5350 4750 7050
Wire Notes Line
	4750 7050 1300 7050
Wire Notes Line
	1300 7050 1300 5350
Text Notes 3300 5450 0    50   ~ 0
Frontpanel wiring.
Text Notes 5000 800  0    50   ~ 0
Raspberry GPIO board.
Text Notes 900  2700 0    50   ~ 0
To HD44780 16x2 display
$Comp
L Connector:XLR3_Ground J201
U 1 1 60BC8A65
P 8800 1550
F 0 "J201" H 8800 1915 50  0000 C CNN
F 1 "1-wire Female" H 8800 1824 50  0000 C CNN
F 2 "" H 8800 1550 50  0001 C CNN
F 3 " ~" H 8800 1550 50  0001 C CNN
	1    8800 1550
	1    0    0    -1  
$EndComp
Wire Wire Line
	8700 1850 8500 1850
Wire Wire Line
	8500 1850 8500 1550
Connection ~ 8500 1550
Wire Wire Line
	8000 1550 8500 1550
Wire Wire Line
	8000 1450 8400 1450
Wire Wire Line
	8400 1450 8400 1950
Wire Wire Line
	8400 1950 9100 1950
Wire Wire Line
	9100 1950 9100 1550
Wire Wire Line
	8000 1350 8300 1350
Wire Wire Line
	8300 1350 8300 2050
Wire Wire Line
	8300 2050 8800 2050
Wire Wire Line
	8800 2050 8800 1850
Wire Notes Line
	9350 1000 9350 2200
Wire Notes Line
	9350 2200 7800 2200
Wire Notes Line
	7800 2200 7800 1000
Wire Notes Line
	7800 1000 9350 1000
$EndSCHEMATC