EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A3 16535 11693
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L MCU_ST_STM32F1:STM32F103RBTx U1
U 1 1 5EEB8250
P 7700 4900
F 0 "U1" H 7700 5100 50  0000 C CNN
F 1 "STM32F103RBTx" H 7700 4750 50  0000 C CNN
F 2 "Package_QFP:LQFP-64_10x10mm_P0.5mm" H 7100 3200 50  0001 R CNN
F 3 "http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00161566.pdf" H 7700 4900 50  0001 C CNN
	1    7700 4900
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR01
U 1 1 5EEBAB47
P 4700 4450
F 0 "#PWR01" H 4700 4200 50  0001 C CNN
F 1 "GND" V 4800 4400 50  0000 C CNN
F 2 "" H 4700 4450 50  0001 C CNN
F 3 "" H 4700 4450 50  0001 C CNN
	1    4700 4450
	0    1    1    0   
$EndComp
$Comp
L power:GND #PWR02
U 1 1 5EEBBC82
P 4700 4850
F 0 "#PWR02" H 4700 4600 50  0001 C CNN
F 1 "GND" V 4800 4800 50  0000 C CNN
F 2 "" H 4700 4850 50  0001 C CNN
F 3 "" H 4700 4850 50  0001 C CNN
	1    4700 4850
	0    1    1    0   
$EndComp
$Comp
L Device:Crystal Y1
U 1 1 5EEBC2AA
P 5200 4650
F 0 "Y1" V 5200 4850 50  0000 C CNN
F 1 "8MHZ" V 5050 4800 50  0000 C CNN
F 2 "Crystal:Crystal_HC49-4H_Vertical" H 5200 4650 50  0001 C CNN
F 3 "~" H 5200 4650 50  0001 C CNN
	1    5200 4650
	0    1    1    0   
$EndComp
$Comp
L Device:C C1
U 1 1 5EEBCBFD
P 4950 4450
F 0 "C1" V 5100 4400 50  0000 L CNN
F 1 "22pF" V 4800 4350 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 4988 4300 50  0001 C CNN
F 3 "~" H 4950 4450 50  0001 C CNN
	1    4950 4450
	0    1    1    0   
$EndComp
$Comp
L Device:C C2
U 1 1 5EEBCF70
P 4950 4850
F 0 "C2" V 5100 4800 50  0000 L CNN
F 1 "22pF" V 4800 4750 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 4988 4700 50  0001 C CNN
F 3 "~" H 4950 4850 50  0001 C CNN
	1    4950 4850
	0    1    1    0   
$EndComp
$Comp
L Device:R R2
U 1 1 5EECA9F2
P 5500 4650
F 0 "R2" H 5570 4696 50  0000 L CNN
F 1 "1M" H 5570 4605 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 5430 4650 50  0001 C CNN
F 3 "~" H 5500 4650 50  0001 C CNN
	1    5500 4650
	1    0    0    -1  
$EndComp
Wire Wire Line
	4700 4450 4800 4450
Wire Wire Line
	5100 4450 5200 4450
Wire Wire Line
	5200 4450 5200 4500
Wire Wire Line
	5200 4450 5500 4450
Wire Wire Line
	5500 4450 5500 4500
Connection ~ 5200 4450
Wire Wire Line
	5500 4450 6500 4450
Wire Wire Line
	6500 4450 6500 4600
Wire Wire Line
	6500 4600 7000 4600
Connection ~ 5500 4450
Wire Wire Line
	7000 4700 6500 4700
Wire Wire Line
	6500 4700 6500 4850
Wire Wire Line
	6500 4850 5500 4850
Wire Wire Line
	5500 4850 5500 4800
Wire Wire Line
	5500 4850 5200 4850
Wire Wire Line
	5200 4850 5200 4800
Connection ~ 5500 4850
Wire Wire Line
	5200 4850 5100 4850
Connection ~ 5200 4850
Wire Wire Line
	4800 4850 4700 4850
Wire Wire Line
	7600 3100 7600 2850
Wire Wire Line
	7600 2850 7700 2850
Wire Wire Line
	7900 2850 7900 3100
Wire Wire Line
	7800 3100 7800 2850
Connection ~ 7800 2850
Wire Wire Line
	7800 2850 7900 2850
Wire Wire Line
	7700 3100 7700 2850
Connection ~ 7700 2850
Wire Wire Line
	7700 2850 7800 2850
Wire Wire Line
	8000 3100 8000 2850
Wire Wire Line
	8000 2850 7900 2850
Connection ~ 7900 2850
$Comp
L Connector:Conn_01x04_Male J2
U 1 1 5EED1FEC
P 11650 5250
F 0 "J2" H 11622 5224 50  0000 R CNN
F 1 "Conn_01x04_Male" H 11622 5133 50  0000 R CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical" H 11650 5250 50  0001 C CNN
F 3 "~" H 11650 5250 50  0001 C CNN
	1    11650 5250
	-1   0    0    -1  
$EndComp
$Comp
L power:GND #PWR015
U 1 1 5EED9C19
P 11400 5500
F 0 "#PWR015" H 11400 5250 50  0001 C CNN
F 1 "GND" H 11405 5327 50  0000 C CNN
F 2 "" H 11400 5500 50  0001 C CNN
F 3 "" H 11400 5500 50  0001 C CNN
	1    11400 5500
	1    0    0    -1  
$EndComp
Wire Wire Line
	11400 5500 11400 5450
Wire Wire Line
	11400 5450 11450 5450
Wire Wire Line
	11400 5150 11450 5150
$Comp
L power:+3V3 #PWR011
U 1 1 5EEDC174
P 7600 2400
F 0 "#PWR011" H 7600 2250 50  0001 C CNN
F 1 "+3V3" H 7615 2573 50  0000 C CNN
F 2 "" H 7600 2400 50  0001 C CNN
F 3 "" H 7600 2400 50  0001 C CNN
	1    7600 2400
	1    0    0    -1  
$EndComp
Connection ~ 7600 2850
$Comp
L power:+3V3 #PWR014
U 1 1 5EEE6545
P 11400 5050
F 0 "#PWR014" H 11400 4900 50  0001 C CNN
F 1 "+3V3" H 11415 5223 50  0000 C CNN
F 2 "" H 11400 5050 50  0001 C CNN
F 3 "" H 11400 5050 50  0001 C CNN
	1    11400 5050
	1    0    0    -1  
$EndComp
Wire Wire Line
	11400 5150 11400 5050
$Comp
L power:GND #PWR06
U 1 1 5EEEF04A
P 6400 7500
F 0 "#PWR06" H 6400 7250 50  0001 C CNN
F 1 "GND" V 6500 7450 50  0000 C CNN
F 2 "" H 6400 7500 50  0001 C CNN
F 3 "" H 6400 7500 50  0001 C CNN
	1    6400 7500
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR09
U 1 1 5EEEF054
P 6800 7500
F 0 "#PWR09" H 6800 7250 50  0001 C CNN
F 1 "GND" V 6900 7450 50  0000 C CNN
F 2 "" H 6800 7500 50  0001 C CNN
F 3 "" H 6800 7500 50  0001 C CNN
	1    6800 7500
	1    0    0    -1  
$EndComp
$Comp
L Device:Crystal Y2
U 1 1 5EEEF05E
P 6600 7000
F 0 "Y2" H 6600 6850 50  0000 C CNN
F 1 "32.768kHz" H 6600 7150 50  0000 C CNN
F 2 "Crystal:Crystal_SMD_Abracon_ABS25-4Pin_8.0x3.8mm" H 6600 7000 50  0001 C CNN
F 3 "~" H 6600 7000 50  0001 C CNN
	1    6600 7000
	-1   0    0    -1  
$EndComp
$Comp
L Device:C C4
U 1 1 5EEEF068
P 6400 7250
F 0 "C4" H 6500 7150 50  0000 L CNN
F 1 "10pF" H 6250 7150 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 6438 7100 50  0001 C CNN
F 3 "~" H 6400 7250 50  0001 C CNN
	1    6400 7250
	1    0    0    -1  
$EndComp
$Comp
L Device:C C5
U 1 1 5EEEF072
P 6800 7250
F 0 "C5" H 6900 7150 50  0000 L CNN
F 1 "10pF" H 6650 7150 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 6838 7100 50  0001 C CNN
F 3 "~" H 6800 7250 50  0001 C CNN
	1    6800 7250
	1    0    0    -1  
$EndComp
Wire Wire Line
	6400 7500 6400 7400
Wire Wire Line
	6400 7100 6400 7000
Wire Wire Line
	6400 7000 6450 7000
Wire Wire Line
	6800 7000 6750 7000
Wire Wire Line
	6800 7000 6800 7100
Wire Wire Line
	6800 7400 6800 7500
Wire Wire Line
	6800 7000 6800 6500
Wire Wire Line
	6800 6500 7000 6500
Connection ~ 6800 7000
Wire Wire Line
	7000 6400 6400 6400
Wire Wire Line
	6400 6400 6400 7000
Connection ~ 6400 7000
$Comp
L power:GND #PWR010
U 1 1 5EEFC03A
P 7500 7500
F 0 "#PWR010" H 7500 7250 50  0001 C CNN
F 1 "GND" H 7505 7327 50  0000 C CNN
F 2 "" H 7500 7500 50  0001 C CNN
F 3 "" H 7500 7500 50  0001 C CNN
	1    7500 7500
	1    0    0    -1  
$EndComp
Wire Wire Line
	7500 7500 7500 7000
Wire Wire Line
	7500 7000 7600 7000
Wire Wire Line
	7600 7000 7600 6700
Connection ~ 7500 7000
Wire Wire Line
	7500 7000 7500 6700
Wire Wire Line
	7600 7000 7700 7000
Wire Wire Line
	7700 7000 7700 6700
Connection ~ 7600 7000
Wire Wire Line
	7700 7000 7800 7000
Wire Wire Line
	7800 7000 7800 6700
Connection ~ 7700 7000
Wire Wire Line
	7800 7000 7900 7000
Wire Wire Line
	7900 7000 7900 6700
Connection ~ 7800 7000
$Comp
L power:+3V3 #PWR016
U 1 1 5EF0577F
P 11450 6850
F 0 "#PWR016" H 11450 6700 50  0001 C CNN
F 1 "+3V3" H 11465 7023 50  0000 C CNN
F 2 "" H 11450 6850 50  0001 C CNN
F 3 "" H 11450 6850 50  0001 C CNN
	1    11450 6850
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR017
U 1 1 5EF062B6
P 11450 7450
F 0 "#PWR017" H 11450 7200 50  0001 C CNN
F 1 "GND" H 11455 7277 50  0000 C CNN
F 2 "" H 11450 7450 50  0001 C CNN
F 3 "" H 11450 7450 50  0001 C CNN
	1    11450 7450
	1    0    0    -1  
$EndComp
$Comp
L Device:C C6
U 1 1 5EF068C5
P 10850 7150
F 0 "C6" H 10965 7196 50  0000 L CNN
F 1 "100nF" H 10965 7105 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 10888 7000 50  0001 C CNN
F 3 "~" H 10850 7150 50  0001 C CNN
	1    10850 7150
	1    0    0    -1  
$EndComp
$Comp
L Device:C C7
U 1 1 5EF06EC8
P 11250 7150
F 0 "C7" H 11365 7196 50  0000 L CNN
F 1 "100nF" H 11365 7105 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 11288 7000 50  0001 C CNN
F 3 "~" H 11250 7150 50  0001 C CNN
	1    11250 7150
	1    0    0    -1  
$EndComp
$Comp
L Device:C C8
U 1 1 5EF07278
P 11650 7150
F 0 "C8" H 11765 7196 50  0000 L CNN
F 1 "100nF" H 11765 7105 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 11688 7000 50  0001 C CNN
F 3 "~" H 11650 7150 50  0001 C CNN
	1    11650 7150
	1    0    0    -1  
$EndComp
$Comp
L Device:C C9
U 1 1 5EF075FB
P 12050 7150
F 0 "C9" H 12165 7196 50  0000 L CNN
F 1 "100nF" H 12165 7105 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 12088 7000 50  0001 C CNN
F 3 "~" H 12050 7150 50  0001 C CNN
	1    12050 7150
	1    0    0    -1  
$EndComp
Wire Wire Line
	10850 7300 10850 7400
Wire Wire Line
	10850 7400 11250 7400
Wire Wire Line
	11450 7400 11450 7450
Wire Wire Line
	11450 7400 11650 7400
Wire Wire Line
	12050 7400 12050 7300
Connection ~ 11450 7400
Wire Wire Line
	11650 7300 11650 7400
Connection ~ 11650 7400
Wire Wire Line
	11650 7400 12050 7400
Wire Wire Line
	11250 7300 11250 7400
Connection ~ 11250 7400
Wire Wire Line
	11250 7400 11450 7400
Wire Wire Line
	10850 7000 10850 6900
Wire Wire Line
	10850 6900 11250 6900
Wire Wire Line
	12050 6900 12050 7000
Wire Wire Line
	11450 6900 11450 6850
Connection ~ 11450 6900
Wire Wire Line
	11450 6900 11650 6900
Wire Wire Line
	11250 6900 11250 7000
Connection ~ 11250 6900
Wire Wire Line
	11250 6900 11450 6900
Wire Wire Line
	11650 7000 11650 6900
Connection ~ 11650 6900
Wire Wire Line
	11650 6900 12050 6900
$Comp
L Connector:Conn_01x04_Male J1
U 1 1 5EF2F000
P 11650 4200
F 0 "J1" H 11622 4174 50  0000 R CNN
F 1 "Conn_01x04_Male" H 11622 4083 50  0000 R CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical" H 11650 4200 50  0001 C CNN
F 3 "~" H 11650 4200 50  0001 C CNN
	1    11650 4200
	-1   0    0    -1  
$EndComp
$Comp
L power:GND #PWR013
U 1 1 5EF2F00A
P 11400 4450
F 0 "#PWR013" H 11400 4200 50  0001 C CNN
F 1 "GND" H 11405 4277 50  0000 C CNN
F 2 "" H 11400 4450 50  0001 C CNN
F 3 "" H 11400 4450 50  0001 C CNN
	1    11400 4450
	1    0    0    -1  
$EndComp
Wire Wire Line
	11400 4450 11400 4400
Wire Wire Line
	11400 4400 11450 4400
Wire Wire Line
	11400 4100 11450 4100
$Comp
L power:+3V3 #PWR012
U 1 1 5EF2F017
P 11400 4000
F 0 "#PWR012" H 11400 3850 50  0001 C CNN
F 1 "+3V3" H 11415 4173 50  0000 C CNN
F 2 "" H 11400 4000 50  0001 C CNN
F 3 "" H 11400 4000 50  0001 C CNN
	1    11400 4000
	1    0    0    -1  
$EndComp
Wire Wire Line
	11400 4100 11400 4000
Wire Wire Line
	11450 5350 10050 5350
Wire Wire Line
	10050 5350 10050 4700
Wire Wire Line
	10050 4700 8400 4700
Wire Wire Line
	8400 4600 10150 4600
Wire Wire Line
	10150 4600 10150 5250
Wire Wire Line
	10150 5250 11450 5250
Wire Wire Line
	11450 4300 8400 4300
Wire Wire Line
	8400 4200 11450 4200
Wire Wire Line
	6050 3300 6050 3150
Connection ~ 6050 3300
Wire Wire Line
	7000 3300 6050 3300
$Comp
L power:+3V3 #PWR04
U 1 1 5EEE4DE3
P 6050 2400
F 0 "#PWR04" H 6050 2250 50  0001 C CNN
F 1 "+3V3" H 6065 2573 50  0000 C CNN
F 2 "" H 6050 2400 50  0001 C CNN
F 3 "" H 6050 2400 50  0001 C CNN
	1    6050 2400
	1    0    0    -1  
$EndComp
Wire Wire Line
	6050 3650 6050 3300
$Comp
L power:GND #PWR05
U 1 1 5EEE35AA
P 6050 4050
F 0 "#PWR05" H 6050 3800 50  0001 C CNN
F 1 "GND" H 6055 3877 50  0000 C CNN
F 2 "" H 6050 4050 50  0001 C CNN
F 3 "" H 6050 4050 50  0001 C CNN
	1    6050 4050
	1    0    0    -1  
$EndComp
$Comp
L Device:C C3
U 1 1 5EEE2D7B
P 6050 3800
F 0 "C3" H 6165 3846 50  0000 L CNN
F 1 "C" H 6165 3755 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 6088 3650 50  0001 C CNN
F 3 "~" H 6050 3800 50  0001 C CNN
	1    6050 3800
	1    0    0    -1  
$EndComp
$Comp
L Device:R R3
U 1 1 5EEE2400
P 6050 3000
F 0 "R3" H 6120 3046 50  0000 L CNN
F 1 "10K" H 6120 2955 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 5980 3000 50  0001 C CNN
F 3 "~" H 6050 3000 50  0001 C CNN
	1    6050 3000
	1    0    0    -1  
$EndComp
Wire Wire Line
	6550 3500 7000 3500
Wire Wire Line
	6550 3650 6550 3500
Wire Wire Line
	6550 4050 6550 3950
$Comp
L power:GND #PWR07
U 1 1 5EECE5EF
P 6550 4050
F 0 "#PWR07" H 6550 3800 50  0001 C CNN
F 1 "GND" H 6555 3877 50  0000 C CNN
F 2 "" H 6550 4050 50  0001 C CNN
F 3 "" H 6550 4050 50  0001 C CNN
	1    6550 4050
	1    0    0    -1  
$EndComp
$Comp
L Device:R R4
U 1 1 5EECD334
P 6550 3800
F 0 "R4" H 6620 3846 50  0000 L CNN
F 1 "10K" H 6620 3755 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 6480 3800 50  0001 C CNN
F 3 "~" H 6550 3800 50  0001 C CNN
	1    6550 3800
	1    0    0    -1  
$EndComp
Wire Wire Line
	6050 4050 6050 3950
$Comp
L Device:Battery_Cell BT1
U 1 1 5EF55DE0
P 6750 2900
F 0 "BT1" H 6868 2996 50  0000 L CNN
F 1 "Battery_Cell" H 6868 2905 50  0000 L CNN
F 2 "Battery:BatteryHolder_Keystone_1060_1x2032" V 6750 2960 50  0001 C CNN
F 3 "~" V 6750 2960 50  0001 C CNN
	1    6750 2900
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR08
U 1 1 5EF5788E
P 6750 3050
F 0 "#PWR08" H 6750 2800 50  0001 C CNN
F 1 "GND" H 6755 2877 50  0000 C CNN
F 2 "" H 6750 3050 50  0001 C CNN
F 3 "" H 6750 3050 50  0001 C CNN
	1    6750 3050
	1    0    0    -1  
$EndComp
Wire Wire Line
	6750 3050 6750 3000
Wire Wire Line
	7500 3100 7500 2600
Wire Wire Line
	7500 2600 6750 2600
Wire Wire Line
	6750 2600 6750 2700
Wire Wire Line
	7600 2400 7600 2850
Wire Wire Line
	6050 2400 6050 2850
$Comp
L Device:LED D1
U 1 1 5EF675E9
P 4850 5900
F 0 "D1" V 4889 5783 50  0000 R CNN
F 1 "LED" V 4798 5783 50  0000 R CNN
F 2 "LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 4850 5900 50  0001 C CNN
F 3 "~" H 4850 5900 50  0001 C CNN
	1    4850 5900
	0    -1   -1   0   
$EndComp
$Comp
L power:+3V3 #PWR03
U 1 1 5EF69AFA
P 4850 5600
F 0 "#PWR03" H 4850 5450 50  0001 C CNN
F 1 "+3V3" H 4865 5773 50  0000 C CNN
F 2 "" H 4850 5600 50  0001 C CNN
F 3 "" H 4850 5600 50  0001 C CNN
	1    4850 5600
	1    0    0    -1  
$EndComp
$Comp
L Device:R R1
U 1 1 5EF6BE9F
P 5200 6300
F 0 "R1" V 4993 6300 50  0000 C CNN
F 1 "330R" V 5084 6300 50  0000 C CNN
F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 5130 6300 50  0001 C CNN
F 3 "~" H 5200 6300 50  0001 C CNN
	1    5200 6300
	0    1    1    0   
$EndComp
Wire Wire Line
	4850 5600 4850 5750
Wire Wire Line
	4850 6050 4850 6300
Wire Wire Line
	4850 6300 5050 6300
Wire Wire Line
	5350 6300 7000 6300
$EndSCHEMATC