EESchema Schematic File Version 4
LIBS:co2_temp_hum_logger-cache
EELAYER 29 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L power:+3V3 #PWR02
U 1 1 5FC06D18
P 900 950
F 0 "#PWR02" H 900 800 50  0001 C CNN
F 1 "+3V3" H 915 1123 50  0000 C CNN
F 2 "" H 900 950 50  0001 C CNN
F 3 "" H 900 950 50  0001 C CNN
	1    900  950 
	1    0    0    -1  
$EndComp
$Comp
L power:PWR_FLAG #FLG01
U 1 1 5FC07424
P 1350 950
F 0 "#FLG01" H 1350 1025 50  0001 C CNN
F 1 "PWR_FLAG" H 1350 1123 50  0000 C CNN
F 2 "" H 1350 950 50  0001 C CNN
F 3 "~" H 1350 950 50  0001 C CNN
	1    1350 950 
	1    0    0    -1  
$EndComp
$Comp
L power:PWR_FLAG #FLG03
U 1 1 5FC077E3
P 2750 950
F 0 "#FLG03" H 2750 1025 50  0001 C CNN
F 1 "PWR_FLAG" H 2750 1123 50  0000 C CNN
F 2 "" H 2750 950 50  0001 C CNN
F 3 "~" H 2750 950 50  0001 C CNN
	1    2750 950 
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR07
U 1 1 5FC07A96
P 2750 1200
F 0 "#PWR07" H 2750 950 50  0001 C CNN
F 1 "GND" H 2755 1027 50  0000 C CNN
F 2 "" H 2750 1200 50  0001 C CNN
F 3 "" H 2750 1200 50  0001 C CNN
	1    2750 1200
	1    0    0    -1  
$EndComp
$Comp
L Seeeduino_XIAO:SeeeduinoXIAO U2
U 1 1 5FC07FB5
P 3000 2900
F 0 "U2" H 2975 1961 50  0000 C CNN
F 1 "SeeeduinoXIAO" H 2975 1870 50  0000 C CNN
F 2 "kicad_mylib:SeeedXIAO" H 2650 3100 50  0001 C CNN
F 3 "" H 2650 3100 50  0001 C CNN
	1    3000 2900
	1    0    0    -1  
$EndComp
$Comp
L kicad_mylib:MH-Z19B U4
U 1 1 5FC0AD6E
P 4850 4750
F 0 "U4" H 5225 4975 50  0000 C CNN
F 1 "MH-Z19B" H 5225 4884 50  0000 C CNN
F 2 "kicad_mylib:MH-Z19B" H 4950 4850 50  0001 C CNN
F 3 "" H 4950 4850 50  0001 C CNN
	1    4850 4750
	1    0    0    -1  
$EndComp
$Comp
L MAX7219CNG:MAX7219CNG IC1
U 1 1 5FC0B955
P 5150 2300
F 0 "IC1" H 5900 2565 50  0000 C CNN
F 1 "MAX7219CNG" H 5900 2474 50  0000 C CNN
F 2 "MAX7219CNG:MAX7219CNG" H 6500 2400 50  0001 L CNN
F 3 "http://uk.rs-online.com/web/p/products/0311473" H 6500 2300 50  0001 L CNN
F 4 "LED Display Drivers 8-Digit LED Display Driver" H 6500 2200 50  0001 L CNN "Description"
F 5 "4.572" H 6500 2100 50  0001 L CNN "Height"
F 6 "0311473" H 6500 2000 50  0001 L CNN "RS Part Number"
F 7 "http://uk.rs-online.com/web/p/products/0311473" H 6500 1900 50  0001 L CNN "RS Price/Stock"
F 8 "Maxim Integrated" H 6500 1800 50  0001 L CNN "Manufacturer_Name"
F 9 "MAX7219CNG" H 6500 1700 50  0001 L CNN "Manufacturer_Part_Number"
	1    5150 2300
	1    0    0    -1  
$EndComp
Wire Wire Line
	2750 1200 2750 950 
Wire Wire Line
	900  950  900  1100
Wire Wire Line
	900  1100 1350 1100
Wire Wire Line
	1350 1100 1350 950 
$Comp
L Switch:SW_Push SW1
U 1 1 5FC8C89C
P 1350 2750
F 0 "SW1" V 1304 2898 50  0000 L CNN
F 1 "SW_Push" V 1395 2898 50  0000 L CNN
F 2 "" H 1350 2950 50  0001 C CNN
F 3 "~" H 1350 2950 50  0001 C CNN
	1    1350 2750
	0    1    1    0   
$EndComp
$Comp
L Device:R R1
U 1 1 5FC935A1
P 1350 2200
F 0 "R1" H 1420 2246 50  0000 L CNN
F 1 "R" H 1420 2155 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 1280 2200 50  0001 C CNN
F 3 "~" H 1350 2200 50  0001 C CNN
	1    1350 2200
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR04
U 1 1 5FC944DA
P 1350 1950
F 0 "#PWR04" H 1350 1800 50  0001 C CNN
F 1 "+3V3" H 1365 2123 50  0000 C CNN
F 2 "" H 1350 1950 50  0001 C CNN
F 3 "" H 1350 1950 50  0001 C CNN
	1    1350 1950
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR05
U 1 1 5FC952EE
P 1350 3100
F 0 "#PWR05" H 1350 2850 50  0001 C CNN
F 1 "GND" H 1355 2927 50  0000 C CNN
F 2 "" H 1350 3100 50  0001 C CNN
F 3 "" H 1350 3100 50  0001 C CNN
	1    1350 3100
	1    0    0    -1  
$EndComp
Wire Wire Line
	1750 5200 1950 5200
Wire Wire Line
	1950 5050 1650 5050
Wire Wire Line
	1650 5050 1650 5850
Connection ~ 1650 5050
Connection ~ 1750 5200
Wire Wire Line
	1750 5950 1750 5200
Wire Wire Line
	3300 5200 3100 5200
Wire Wire Line
	3200 5050 3300 5050
Wire Wire Line
	2850 5050 2750 5050
Wire Wire Line
	2850 4550 2850 5050
$Comp
L kicad_mylib:SHT-31 U1
U 1 1 5FC0A652
P 2050 5450
F 0 "U1" H 2350 6265 50  0000 C CNN
F 1 "SHT-31" H 2350 6174 50  0000 C CNN
F 2 "kicad_mylib:SHT-31" H 2600 6150 50  0001 C CNN
F 3 "" H 2600 6150 50  0001 C CNN
	1    2050 5450
	1    0    0    -1  
$EndComp
Wire Wire Line
	2150 2600 2050 2600
Wire Wire Line
	2050 2600 2050 4300
Wire Wire Line
	2050 4300 4750 4300
Wire Wire Line
	4750 4300 4750 5200
Wire Wire Line
	4750 5200 4850 5200
Wire Wire Line
	4850 5050 4650 5050
Wire Wire Line
	4650 5050 4650 4200
Wire Wire Line
	4650 4200 1950 4200
Wire Wire Line
	1950 4200 1950 2750
Wire Wire Line
	1950 2750 2150 2750
Wire Wire Line
	2150 2900 1850 2900
Wire Wire Line
	1850 2900 1850 4100
Wire Wire Line
	1850 4100 4550 4100
Wire Wire Line
	4550 4100 4550 4750
Wire Wire Line
	4550 4750 4850 4750
Wire Wire Line
	1750 3050 2150 3050
Wire Wire Line
	2150 3200 1650 3200
Wire Wire Line
	2150 3350 1550 3350
Wire Wire Line
	1550 4550 2850 4550
$Comp
L Device:R R3
U 1 1 5FD0D6AD
P 1000 4750
F 0 "R3" H 1070 4796 50  0000 L CNN
F 1 "10k" H 1070 4705 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 930 4750 50  0001 C CNN
F 3 "~" H 1000 4750 50  0001 C CNN
	1    1000 4750
	1    0    0    -1  
$EndComp
$Comp
L Device:R R2
U 1 1 5FD0E38A
P 700 4750
F 0 "R2" H 770 4796 50  0000 L CNN
F 1 "10k" H 770 4705 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 630 4750 50  0001 C CNN
F 3 "~" H 700 4750 50  0001 C CNN
	1    700  4750
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR01
U 1 1 5FD10249
P 700 4500
F 0 "#PWR01" H 700 4350 50  0001 C CNN
F 1 "+3V3" H 715 4673 50  0000 C CNN
F 2 "" H 700 4500 50  0001 C CNN
F 3 "" H 700 4500 50  0001 C CNN
	1    700  4500
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR03
U 1 1 5FD105BE
P 1300 5850
F 0 "#PWR03" H 1300 5600 50  0001 C CNN
F 1 "GND" H 1305 5677 50  0000 C CNN
F 2 "" H 1300 5850 50  0001 C CNN
F 3 "" H 1300 5850 50  0001 C CNN
	1    1300 5850
	1    0    0    -1  
$EndComp
$Comp
L Device:C C2
U 1 1 5FD111AE
P 1300 5400
F 0 "C2" H 1415 5446 50  0000 L CNN
F 1 "1uF" H 1415 5355 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 1338 5250 50  0001 C CNN
F 3 "~" H 1300 5400 50  0001 C CNN
	1    1300 5400
	1    0    0    -1  
$EndComp
Wire Wire Line
	700  4500 1000 4500
Wire Wire Line
	1300 4500 1300 4800
Wire Wire Line
	1950 4900 1300 4900
Connection ~ 1300 4900
Wire Wire Line
	1300 4900 1300 5250
Wire Wire Line
	1750 5200 1000 5200
Wire Wire Line
	1000 5200 1000 4900
Wire Wire Line
	700  4900 700  5050
Wire Wire Line
	700  5050 1650 5050
Wire Wire Line
	700  4500 700  4600
Connection ~ 700  4500
Wire Wire Line
	1000 4600 1000 4500
Connection ~ 1000 4500
Wire Wire Line
	1000 4500 1300 4500
Wire Wire Line
	2750 5350 2850 5350
Wire Wire Line
	2850 5350 2850 5200
Wire Wire Line
	2850 5200 2750 5200
Wire Wire Line
	1300 5550 1300 5750
Wire Wire Line
	1300 5750 1950 5750
Wire Wire Line
	2850 5750 2850 5350
Connection ~ 1300 5750
Wire Wire Line
	1300 5750 1300 5850
Connection ~ 2850 5350
Wire Wire Line
	1750 3050 1750 5200
Wire Wire Line
	1650 3200 1650 5050
Wire Wire Line
	1550 3350 1550 4550
Wire Wire Line
	1300 4800 1850 4800
Wire Wire Line
	1850 4800 1850 4450
Wire Wire Line
	1850 4450 3200 4450
Wire Wire Line
	3200 4450 3200 4900
Wire Wire Line
	3200 4900 3300 4900
Connection ~ 1300 4800
Wire Wire Line
	1300 4800 1300 4900
Wire Wire Line
	1950 5350 1950 5750
Connection ~ 1950 5750
Wire Wire Line
	1950 5750 2850 5750
$Comp
L power:+3V3 #PWR013
U 1 1 5FD82E3C
P 5950 5100
F 0 "#PWR013" H 5950 4950 50  0001 C CNN
F 1 "+3V3" H 5965 5273 50  0000 C CNN
F 2 "" H 5950 5100 50  0001 C CNN
F 3 "" H 5950 5100 50  0001 C CNN
	1    5950 5100
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR012
U 1 1 5FD842DB
P 5700 5950
F 0 "#PWR012" H 5700 5700 50  0001 C CNN
F 1 "GND" H 5705 5777 50  0000 C CNN
F 2 "" H 5700 5950 50  0001 C CNN
F 3 "" H 5700 5950 50  0001 C CNN
	1    5700 5950
	1    0    0    -1  
$EndComp
Wire Wire Line
	5600 5200 5700 5200
Wire Wire Line
	5700 5200 5700 5850
Wire Wire Line
	5950 5100 5950 5350
$Comp
L kicad_mylib:7segment_led U5
U 1 1 5FC0924B
P 9000 2250
F 0 "U5" H 9200 2425 50  0000 C CNN
F 1 "7segment_led" H 9200 2334 50  0000 C CNN
F 2 "kicad_mylib:7segment_led_0.56" H 9400 2350 50  0001 C CNN
F 3 "" H 9400 2350 50  0001 C CNN
	1    9000 2250
	1    0    0    -1  
$EndComp
Wire Wire Line
	6650 2400 7200 2400
Wire Wire Line
	7200 2400 7200 3850
Wire Wire Line
	7200 3850 8700 3850
Wire Wire Line
	8700 2400 8900 2400
Wire Wire Line
	8700 3850 8700 2400
Wire Wire Line
	6650 2500 7300 2500
Wire Wire Line
	7300 2500 7300 3950
Wire Wire Line
	7300 3950 8600 3950
Wire Wire Line
	8600 3950 8600 2500
Wire Wire Line
	8600 2500 8900 2500
Wire Wire Line
	6650 2600 7400 2600
Wire Wire Line
	7400 2600 7400 4050
Wire Wire Line
	7400 4050 8500 4050
Wire Wire Line
	8500 4050 8500 2300
Wire Wire Line
	8500 2300 8900 2300
Wire Wire Line
	6650 2700 7500 2700
Wire Wire Line
	7500 2700 7500 4150
Wire Wire Line
	7500 4150 8400 4150
Wire Wire Line
	8400 4150 8400 2600
Wire Wire Line
	8400 2600 8900 2600
Wire Wire Line
	6650 3000 7600 3000
Wire Wire Line
	7600 3000 7600 4250
Wire Wire Line
	7600 4250 8300 4250
Wire Wire Line
	8300 4250 8300 2700
Wire Wire Line
	8300 2700 8900 2700
Wire Wire Line
	6650 3100 6900 3100
Wire Wire Line
	6900 3100 6900 3550
Wire Wire Line
	6900 3550 9800 3550
Wire Wire Line
	9800 3550 9800 2800
Wire Wire Line
	9800 2800 9500 2800
Wire Wire Line
	6650 3200 7000 3200
Wire Wire Line
	7000 3200 7000 3650
Wire Wire Line
	7000 3650 9700 3650
Wire Wire Line
	9700 3650 9700 2500
Wire Wire Line
	9700 2500 9500 2500
Wire Wire Line
	6650 3300 7100 3300
Wire Wire Line
	7100 3300 7100 3750
Wire Wire Line
	7100 3750 9600 3750
Wire Wire Line
	9600 3750 9600 2400
Wire Wire Line
	9600 2400 9500 2400
NoConn ~ 6650 2300
NoConn ~ 5150 3200
NoConn ~ 5150 3000
NoConn ~ 5150 2700
NoConn ~ 5150 2500
Wire Wire Line
	5150 3300 4850 3300
Wire Wire Line
	4850 3300 4850 1550
Wire Wire Line
	4850 1550 10000 1550
Wire Wire Line
	10000 1550 10000 2600
Wire Wire Line
	10000 2600 9500 2600
Wire Wire Line
	4650 1750 9900 1750
Wire Wire Line
	9900 1750 9900 2700
Wire Wire Line
	9900 2700 9500 2700
Wire Wire Line
	5150 2900 4750 2900
Wire Wire Line
	4750 2900 4750 1650
Wire Wire Line
	4750 1650 8800 1650
Wire Wire Line
	8800 1650 8800 2800
Wire Wire Line
	8800 2800 8900 2800
Wire Wire Line
	5150 2400 4550 2400
Wire Wire Line
	4550 2400 4550 1900
Wire Wire Line
	4550 1900 10100 1900
Wire Wire Line
	10100 1900 10100 2300
Wire Wire Line
	10100 2300 9500 2300
$Comp
L power:+5V #PWR014
U 1 1 5FF5D85B
P 7950 2200
F 0 "#PWR014" H 7950 2050 50  0001 C CNN
F 1 "+5V" H 7965 2373 50  0000 C CNN
F 2 "" H 7950 2200 50  0001 C CNN
F 3 "" H 7950 2200 50  0001 C CNN
	1    7950 2200
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR015
U 1 1 5FF5DEB6
P 7950 3300
F 0 "#PWR015" H 7950 3050 50  0001 C CNN
F 1 "GND" H 7955 3127 50  0000 C CNN
F 2 "" H 7950 3300 50  0001 C CNN
F 3 "" H 7950 3300 50  0001 C CNN
	1    7950 3300
	1    0    0    -1  
$EndComp
$Comp
L Device:R R4
U 1 1 5FF5E830
P 7750 2550
F 0 "R4" H 7820 2596 50  0000 L CNN
F 1 "10k" H 7820 2505 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 7680 2550 50  0001 C CNN
F 3 "~" H 7750 2550 50  0001 C CNN
	1    7750 2550
	1    0    0    -1  
$EndComp
Wire Wire Line
	6650 2900 7750 2900
Wire Wire Line
	7750 2900 7750 2700
Wire Wire Line
	6650 2800 7950 2800
Wire Wire Line
	7950 2800 7950 2300
Wire Wire Line
	7750 2400 7750 2300
Wire Wire Line
	7750 2300 7950 2300
Connection ~ 7950 2300
Wire Wire Line
	7950 2300 7950 2200
$Comp
L Device:C C4
U 1 1 5FF9821C
P 7950 3050
F 0 "C4" H 8065 3096 50  0000 L CNN
F 1 "1uF" H 8065 3005 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 7988 2900 50  0001 C CNN
F 3 "~" H 7950 3050 50  0001 C CNN
	1    7950 3050
	1    0    0    -1  
$EndComp
Wire Wire Line
	7950 2800 7950 2900
Connection ~ 7950 2800
Wire Wire Line
	7950 3200 7950 3300
$Comp
L power:PWR_FLAG #FLG02
U 1 1 5FFB6EB5
P 2250 950
F 0 "#FLG02" H 2250 1025 50  0001 C CNN
F 1 "PWR_FLAG" H 2250 1123 50  0000 C CNN
F 2 "" H 2250 950 50  0001 C CNN
F 3 "~" H 2250 950 50  0001 C CNN
	1    2250 950 
	1    0    0    -1  
$EndComp
Wire Wire Line
	1800 950  1800 1100
Wire Wire Line
	1800 1100 2250 1100
Wire Wire Line
	2250 1100 2250 950 
$Comp
L power:+5V #PWR06
U 1 1 5FFC1743
P 1800 950
F 0 "#PWR06" H 1800 800 50  0001 C CNN
F 1 "+5V" H 1815 1123 50  0000 C CNN
F 2 "" H 1800 950 50  0001 C CNN
F 3 "" H 1800 950 50  0001 C CNN
	1    1800 950 
	1    0    0    -1  
$EndComp
NoConn ~ 5150 3100
Wire Wire Line
	4650 1750 4650 2800
Wire Wire Line
	4650 2800 5150 2800
$Comp
L power:GND #PWR011
U 1 1 5FFF0F8A
P 5050 4150
F 0 "#PWR011" H 5050 3900 50  0001 C CNN
F 1 "GND" H 5055 3977 50  0000 C CNN
F 2 "" H 5050 4150 50  0001 C CNN
F 3 "" H 5050 4150 50  0001 C CNN
	1    5050 4150
	1    0    0    -1  
$EndComp
Wire Wire Line
	5150 2600 5050 2600
Wire Wire Line
	5050 2600 5050 4150
Wire Wire Line
	3800 3350 4200 3350
Wire Wire Line
	4200 3350 4200 3900
Wire Wire Line
	4200 3900 6750 3900
Wire Wire Line
	6750 3900 6750 3400
Wire Wire Line
	6750 3400 6650 3400
Wire Wire Line
	3800 3200 4100 3200
Wire Wire Line
	4100 3200 4100 3800
Wire Wire Line
	4100 3800 4850 3800
Wire Wire Line
	4850 3800 4850 3400
Wire Wire Line
	4850 3400 5150 3400
Wire Wire Line
	3800 3050 4000 3050
Wire Wire Line
	4000 3050 4000 3700
Wire Wire Line
	4000 3700 4950 3700
Wire Wire Line
	4950 3700 4950 2300
Wire Wire Line
	4950 2300 5150 2300
$Comp
L power:GND #PWR08
U 1 1 6005EFF8
P 4100 2950
F 0 "#PWR08" H 4100 2700 50  0001 C CNN
F 1 "GND" H 4105 2777 50  0000 C CNN
F 2 "" H 4100 2950 50  0001 C CNN
F 3 "" H 4100 2950 50  0001 C CNN
	1    4100 2950
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR09
U 1 1 6005F72C
P 4200 2350
F 0 "#PWR09" H 4200 2200 50  0001 C CNN
F 1 "+3V3" H 4215 2523 50  0000 C CNN
F 2 "" H 4200 2350 50  0001 C CNN
F 3 "" H 4200 2350 50  0001 C CNN
	1    4200 2350
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR010
U 1 1 600605E3
P 4400 2350
F 0 "#PWR010" H 4400 2200 50  0001 C CNN
F 1 "+5V" H 4415 2523 50  0000 C CNN
F 2 "" H 4400 2350 50  0001 C CNN
F 3 "" H 4400 2350 50  0001 C CNN
	1    4400 2350
	1    0    0    -1  
$EndComp
Wire Wire Line
	4400 2350 4400 2450
Wire Wire Line
	4400 2450 3800 2450
Wire Wire Line
	4200 2350 4200 2750
Wire Wire Line
	4200 2750 3800 2750
Wire Wire Line
	3800 2600 4100 2600
Wire Wire Line
	4100 2600 4100 2850
Wire Wire Line
	1350 1950 1350 2050
Wire Wire Line
	1350 2350 1350 2450
Wire Wire Line
	1350 2950 1350 3100
Wire Wire Line
	1350 2450 2150 2450
Connection ~ 1350 2450
Wire Wire Line
	1350 2450 1350 2550
NoConn ~ 3100 3750
NoConn ~ 2900 3750
NoConn ~ 2800 2000
NoConn ~ 2950 2000
NoConn ~ 3100 2000
NoConn ~ 3250 2000
$Comp
L Device:C C1
U 1 1 6010415D
P 4400 2700
F 0 "C1" H 4515 2746 50  0000 L CNN
F 1 "1uF" H 4515 2655 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 4438 2550 50  0001 C CNN
F 3 "~" H 4400 2700 50  0001 C CNN
	1    4400 2700
	1    0    0    -1  
$EndComp
Wire Wire Line
	4400 2550 4400 2450
Connection ~ 4400 2450
Wire Wire Line
	4100 2850 4400 2850
Connection ~ 4100 2850
Wire Wire Line
	4100 2850 4100 2950
Wire Wire Line
	5600 5350 5950 5350
$Comp
L Device:C C3
U 1 1 6015FC55
P 5950 5600
F 0 "C3" H 6065 5646 50  0000 L CNN
F 1 "10uF" H 6065 5555 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 5988 5450 50  0001 C CNN
F 3 "~" H 5950 5600 50  0001 C CNN
	1    5950 5600
	1    0    0    -1  
$EndComp
Wire Wire Line
	5950 5450 5950 5350
Connection ~ 5950 5350
Wire Wire Line
	5950 5750 5950 5850
Wire Wire Line
	5950 5850 5700 5850
Connection ~ 5700 5850
Wire Wire Line
	5700 5850 5700 5950
NoConn ~ 5600 4900
NoConn ~ 4850 5350
$Comp
L kicad_mylib:SHT-31_aliexpress U3
U 1 1 5FE04F90
P 3400 5450
F 0 "U3" H 3700 6265 50  0000 C CNN
F 1 "SHT-31_aliexpress" H 3700 6174 50  0000 C CNN
F 2 "kicad_mylib:SHT-31_aliexpress" H 3950 6150 50  0001 C CNN
F 3 "" H 3950 6150 50  0001 C CNN
	1    3400 5450
	1    0    0    -1  
$EndComp
Wire Wire Line
	3200 5050 3200 5750
Wire Wire Line
	3200 5750 2850 5750
Connection ~ 2850 5750
Wire Wire Line
	3100 5200 3100 5850
Wire Wire Line
	3100 5850 1650 5850
Wire Wire Line
	3300 5350 3000 5350
Wire Wire Line
	3000 5350 3000 5950
Wire Wire Line
	3000 5950 1750 5950
NoConn ~ 4100 5200
NoConn ~ 3800 2900
NoConn ~ 2750 4900
NoConn ~ 4100 5350
$EndSCHEMATC
