EESchema Schematic File Version 4
LIBS:sts21-cache
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 Device:R R1
U 1 1 5DD528E6
P 5850 3250
F 0 "R1" H 5920 3296 50  0000 L CNN
F 1 "R4.7k" H 5920 3205 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 5780 3250 50  0001 C CNN
F 3 "~" H 5850 3250 50  0001 C CNN
	1    5850 3250
	1    0    0    -1  
$EndComp
$Comp
L Device:R R2
U 1 1 5DD532B8
P 4800 3250
F 0 "R2" H 4870 3296 50  0000 L CNN
F 1 "R4.7k" H 4870 3205 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 4730 3250 50  0001 C CNN
F 3 "~" H 4800 3250 50  0001 C CNN
	1    4800 3250
	1    0    0    -1  
$EndComp
$Comp
L Device:C C1
U 1 1 5DD53837
P 5250 4100
F 0 "C1" V 4998 4100 50  0000 C CNN
F 1 "C100nF" V 5089 4100 50  0000 C CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 5288 3950 50  0001 C CNN
F 3 "~" H 5250 4100 50  0001 C CNN
	1    5250 4100
	0    1    1    0   
$EndComp
$Comp
L Connector:Conn_01x04_Male J1
U 1 1 5DD54994
P 5200 5100
F 0 "J1" V 5354 4812 50  0000 R CNN
F 1 "Conn_01x04_Male" V 5263 4812 50  0000 R CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical" H 5200 5100 50  0001 C CNN
F 3 "~" H 5200 5100 50  0001 C CNN
	1    5200 5100
	0    -1   -1   0   
$EndComp
$Comp
L custom_components:STS21 U1
U 1 1 5DD5BB40
P 5250 3500
F 0 "U1" V 4835 3500 50  0000 C CNN
F 1 "STS21" V 4926 3500 50  0000 C CNN
F 2 "custom_components:STS21" H 5350 3650 50  0001 C CNN
F 3 "" H 5350 3650 50  0001 C CNN
	1    5250 3500
	0    1    1    0   
$EndComp
Wire Wire Line
	5800 3500 5800 4100
Wire Wire Line
	5800 4100 5400 4100
Wire Wire Line
	4900 3500 4600 3500
Wire Wire Line
	4600 4100 5100 4100
Wire Wire Line
	4600 3500 4600 4100
Text GLabel 4650 3400 0    50   Input ~ 0
SCL
Text GLabel 6150 3400 2    50   Input ~ 0
SDA
$Comp
L power:GND #PWR0101
U 1 1 5DD6BA79
P 6050 3500
F 0 "#PWR0101" H 6050 3250 50  0001 C CNN
F 1 "GND" H 6055 3327 50  0000 C CNN
F 2 "" H 6050 3500 50  0001 C CNN
F 3 "" H 6050 3500 50  0001 C CNN
	1    6050 3500
	1    0    0    -1  
$EndComp
Wire Wire Line
	5600 3500 5800 3500
Connection ~ 5800 3500
Wire Wire Line
	5800 3500 6050 3500
$Comp
L power:+3.3V #PWR0102
U 1 1 5DD6CE67
P 4300 3500
F 0 "#PWR0102" H 4300 3350 50  0001 C CNN
F 1 "+3.3V" H 4315 3673 50  0000 C CNN
F 2 "" H 4300 3500 50  0001 C CNN
F 3 "" H 4300 3500 50  0001 C CNN
	1    4300 3500
	1    0    0    -1  
$EndComp
Wire Wire Line
	4300 3500 4600 3500
Connection ~ 4600 3500
Wire Wire Line
	5600 3400 5850 3400
Wire Wire Line
	4650 3400 4800 3400
Connection ~ 5850 3400
Wire Wire Line
	5850 3400 6150 3400
Connection ~ 4800 3400
Wire Wire Line
	4800 3400 4900 3400
$Comp
L power:+3.3V #PWR0103
U 1 1 5DD6FD0C
P 5600 2900
F 0 "#PWR0103" H 5600 2750 50  0001 C CNN
F 1 "+3.3V" H 5615 3073 50  0000 C CNN
F 2 "" H 5600 2900 50  0001 C CNN
F 3 "" H 5600 2900 50  0001 C CNN
	1    5600 2900
	1    0    0    -1  
$EndComp
Wire Wire Line
	5850 3100 5850 2900
Wire Wire Line
	5850 2900 5600 2900
Wire Wire Line
	4800 3100 4800 2900
Wire Wire Line
	4800 2900 5600 2900
Connection ~ 5600 2900
$Comp
L power:GND #PWR0104
U 1 1 5DD72B95
P 4850 4900
F 0 "#PWR0104" H 4850 4650 50  0001 C CNN
F 1 "GND" H 4855 4727 50  0000 C CNN
F 2 "" H 4850 4900 50  0001 C CNN
F 3 "" H 4850 4900 50  0001 C CNN
	1    4850 4900
	1    0    0    -1  
$EndComp
Wire Wire Line
	4850 4900 5100 4900
$Comp
L power:+3.3V #PWR0105
U 1 1 5DD739EE
P 5200 4750
F 0 "#PWR0105" H 5200 4600 50  0001 C CNN
F 1 "+3.3V" H 5215 4923 50  0000 C CNN
F 2 "" H 5200 4750 50  0001 C CNN
F 3 "" H 5200 4750 50  0001 C CNN
	1    5200 4750
	1    0    0    -1  
$EndComp
Wire Wire Line
	5200 4900 5200 4750
Text GLabel 5400 4500 1    50   Input ~ 0
SCL
Wire Wire Line
	5300 4900 5300 4700
Wire Wire Line
	5300 4700 5400 4700
Wire Wire Line
	5400 4700 5400 4500
Text GLabel 5550 4500 1    50   Input ~ 0
SDA
Wire Wire Line
	5400 4900 5400 4750
Wire Wire Line
	5400 4750 5550 4750
Wire Wire Line
	5550 4750 5550 4500
$EndSCHEMATC