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 bluepill_breakouts:BluePill_STM32F103C U?
U 1 1 64EDC21B
P 3450 3300
F 0 "U?" V 3429 1872 50  0000 R CNN
F 1 "BluePill_STM32F103C" V 3520 1872 50  0000 R CNN
F 2 "BluePill_breakouts:BluePill_STM32F103C" H 3500 1700 50  0001 C CNN
F 3 "www.rogerclark.net" H 3450 1800 50  0001 C CNN
	1    3450 3300
	0    1    1    0   
$EndComp
$Comp
L Device:R R?
U 1 1 64EDF5C5
P 1250 5000
F 0 "R?" H 1320 5046 50  0000 L CNN
F 1 "20k" H 1320 4955 50  0000 L CNN
F 2 "" V 1180 5000 50  0001 C CNN
F 3 "~" H 1250 5000 50  0001 C CNN
	1    1250 5000
	1    0    0    -1  
$EndComp
$Comp
L Device:R R?
U 1 1 64EDFDBD
P 1650 5000
F 0 "R?" H 1720 5046 50  0000 L CNN
F 1 "20k" H 1720 4955 50  0000 L CNN
F 2 "" V 1580 5000 50  0001 C CNN
F 3 "~" H 1650 5000 50  0001 C CNN
	1    1650 5000
	1    0    0    -1  
$EndComp
$Comp
L Device:R R?
U 1 1 64EE0135
P 2050 5000
F 0 "R?" H 2120 5046 50  0000 L CNN
F 1 "20k" H 2120 4955 50  0000 L CNN
F 2 "" V 1980 5000 50  0001 C CNN
F 3 "~" H 2050 5000 50  0001 C CNN
	1    2050 5000
	1    0    0    -1  
$EndComp
$Comp
L Device:R R?
U 1 1 64EE0320
P 2450 5000
F 0 "R?" H 2520 5046 50  0000 L CNN
F 1 "20k" H 2520 4955 50  0000 L CNN
F 2 "" V 2380 5000 50  0001 C CNN
F 3 "~" H 2450 5000 50  0001 C CNN
	1    2450 5000
	1    0    0    -1  
$EndComp
$Comp
L Device:R R?
U 1 1 64EE05F5
P 1450 5200
F 0 "R?" V 1350 5200 50  0000 C CNN
F 1 "10k" V 1250 5200 50  0000 C CNN
F 2 "" V 1380 5200 50  0001 C CNN
F 3 "~" H 1450 5200 50  0001 C CNN
	1    1450 5200
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R?
U 1 1 64EE138F
P 1850 5200
F 0 "R?" V 1750 5200 50  0000 C CNN
F 1 "10k" V 1650 5200 50  0000 C CNN
F 2 "" V 1780 5200 50  0001 C CNN
F 3 "~" H 1850 5200 50  0001 C CNN
	1    1850 5200
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R?
U 1 1 64EE1BCF
P 2250 5200
F 0 "R?" V 2150 5200 50  0000 C CNN
F 1 "10k" V 2050 5200 50  0000 C CNN
F 2 "" V 2180 5200 50  0001 C CNN
F 3 "~" H 2250 5200 50  0001 C CNN
	1    2250 5200
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R?
U 1 1 64EE1F79
P 1250 5400
F 0 "R?" H 1050 5450 50  0000 L CNN
F 1 "20k" H 1050 5350 50  0000 L CNN
F 2 "" V 1180 5400 50  0001 C CNN
F 3 "~" H 1250 5400 50  0001 C CNN
	1    1250 5400
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 64EE4C4F
P 1250 5550
F 0 "#PWR?" H 1250 5300 50  0001 C CNN
F 1 "GND" H 1255 5377 50  0000 C CNN
F 2 "" H 1250 5550 50  0001 C CNN
F 3 "" H 1250 5550 50  0001 C CNN
	1    1250 5550
	1    0    0    -1  
$EndComp
$Comp
L Device:R R?
U 1 1 64EE5121
P 2450 5400
F 0 "R?" H 2520 5446 50  0000 L CNN
F 1 "100k" H 2520 5355 50  0000 L CNN
F 2 "" V 2380 5400 50  0001 C CNN
F 3 "~" H 2450 5400 50  0001 C CNN
	1    2450 5400
	1    0    0    -1  
$EndComp
$Comp
L Device:R_POT RV?
U 1 1 64EE57F8
P 2450 5750
F 0 "RV?" H 2380 5796 50  0000 R CNN
F 1 "22k" H 2380 5705 50  0000 R CNN
F 2 "" H 2450 5750 50  0001 C CNN
F 3 "~" H 2450 5750 50  0001 C CNN
	1    2450 5750
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 64EE63F8
P 2450 5900
F 0 "#PWR?" H 2450 5650 50  0001 C CNN
F 1 "GND" H 2455 5727 50  0000 C CNN
F 2 "" H 2450 5900 50  0001 C CNN
F 3 "" H 2450 5900 50  0001 C CNN
	1    2450 5900
	1    0    0    -1  
$EndComp
Wire Wire Line
	2450 5550 2450 5600
Wire Wire Line
	2400 5200 2450 5200
Wire Wire Line
	2450 5200 2450 5150
Wire Wire Line
	2450 5200 2450 5250
Connection ~ 2450 5200
Wire Wire Line
	2000 5200 2050 5200
Wire Wire Line
	1600 5200 1650 5200
Wire Wire Line
	1650 5150 1650 5200
Connection ~ 1650 5200
Wire Wire Line
	1650 5200 1700 5200
Wire Wire Line
	2050 5150 2050 5200
Connection ~ 2050 5200
Wire Wire Line
	2050 5200 2100 5200
Wire Wire Line
	1250 5150 1250 5200
Wire Wire Line
	1300 5200 1250 5200
Connection ~ 1250 5200
Wire Wire Line
	1250 5200 1250 5250
$EndSCHEMATC