EESchema Schematic File Version 4
LIBS:stm32f042-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
Text Notes 5600 5825 0    60   ~ 0
Bootloader init
Text Label 5900 6925 2    60   ~ 0
NRST
Text Label 5900 5975 0    60   ~ 0
BOOT0
$Comp
L stm32f042-rescue:R-stm32-rescue R10
U 1 1 5D347863
P 5900 6275
F 0 "R10" V 5980 6275 50  0000 C CNN
F 1 "10k" V 5900 6275 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 5830 6275 50  0001 C CNN
F 3 "" H 5900 6275 50  0000 C CNN
	1    5900 6275
	1    0    0    -1  
$EndComp
$Comp
L stm32f042-rescue:C-stm32-rescue C2
U 1 1 590D4150
P 6500 6275
F 0 "C2" H 6525 6375 50  0000 L CNN
F 1 "0.1" H 6525 6175 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 6538 6125 50  0001 C CNN
F 3 "" H 6500 6275 50  0000 C CNN
	1    6500 6275
	1    0    0    -1  
$EndComp
$Comp
L stm32f042-rescue:C-stm32-rescue C1
U 1 1 5D4AE2B9
P 6450 7125
F 0 "C1" H 6475 7225 50  0000 L CNN
F 1 "0.1" H 6475 7025 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 6488 6975 50  0001 C CNN
F 3 "" H 6450 7125 50  0000 C CNN
	1    6450 7125
	1    0    0    -1  
$EndComp
$Comp
L Switch:SW_Push SW2
U 1 1 5D34785A
P 6200 6275
F 0 "SW2" H 6250 6375 50  0000 L CNN
F 1 "Boot" H 6200 6215 50  0000 C CNN
F 2 "Buttons_Switches_SMD:SW_SPST_FSMSM" H 6200 6475 50  0001 C CNN
F 3 "" H 6200 6475 50  0000 C CNN
	1    6200 6275
	0    1    1    0   
$EndComp
$Comp
L Switch:SW_Push SW1
U 1 1 5D34785B
P 6150 7125
F 0 "SW1" H 6200 7225 50  0000 L CNN
F 1 "Reset" H 6150 7065 50  0000 C CNN
F 2 "Buttons_Switches_SMD:SW_SPST_FSMSM" H 6150 7325 50  0001 C CNN
F 3 "" H 6150 7325 50  0000 C CNN
	1    6150 7125
	0    1    1    0   
$EndComp
$Comp
L stm32f042-rescue:GND-stm32-rescue #PWR011
U 1 1 5D34785C
P 5900 6475
F 0 "#PWR011" H 5900 6225 50  0001 C CNN
F 1 "GND" H 5900 6325 50  0000 C CNN
F 2 "" H 5900 6475 50  0000 C CNN
F 3 "" H 5900 6475 50  0000 C CNN
	1    5900 6475
	1    0    0    -1  
$EndComp
$Comp
L stm32f042-rescue:+3.3V-stm32-rescue #PWR013
U 1 1 5D34785D
P 6350 6525
F 0 "#PWR013" H 6350 6375 50  0001 C CNN
F 1 "+3.3V" H 6350 6665 50  0000 C CNN
F 2 "" H 6350 6525 50  0000 C CNN
F 3 "" H 6350 6525 50  0000 C CNN
	1    6350 6525
	-1   0    0    1   
$EndComp
$Comp
L stm32f042-rescue:GND-stm32-rescue #PWR012
U 1 1 5D34785F
P 6300 7375
F 0 "#PWR012" H 6300 7125 50  0001 C CNN
F 1 "GND" H 6300 7225 50  0000 C CNN
F 2 "" H 6300 7375 50  0000 C CNN
F 3 "" H 6300 7375 50  0000 C CNN
	1    6300 7375
	1    0    0    -1  
$EndComp
Wire Wire Line
	5900 6475 5900 6425
Wire Wire Line
	5900 5975 5900 6075
Wire Wire Line
	6500 6075 6500 6125
Wire Wire Line
	5900 6075 6200 6075
Connection ~ 6200 6075
Connection ~ 5900 6075
Wire Wire Line
	6200 6475 6350 6475
Wire Wire Line
	6500 6475 6500 6425
Wire Wire Line
	6350 6525 6350 6475
Connection ~ 6350 6475
Wire Wire Line
	5900 6925 6150 6925
Wire Wire Line
	6450 6925 6450 6975
Connection ~ 6150 6925
Wire Wire Line
	6150 7325 6300 7325
Wire Wire Line
	6450 7325 6450 7275
Wire Wire Line
	6300 7375 6300 7325
Connection ~ 6300 7325
Wire Notes Line
	5500 5675 5500 7625
Wire Notes Line
	5500 7625 6850 7625
Wire Notes Line
	6850 7625 6850 5675
Wire Notes Line
	6850 5675 5500 5675
Wire Wire Line
	6200 6075 6500 6075
Wire Wire Line
	5900 6075 5900 6125
Wire Wire Line
	6350 6475 6500 6475
Wire Wire Line
	6150 6925 6450 6925
Wire Wire Line
	6300 7325 6450 7325
$Comp
L stm32f042-rescue:USB_A-RESCUE-stm32-stm32-rescue P1
U 1 1 5CEABE76
P 2500 2200
F 0 "P1" V 2700 2150 50  0000 C CNN
F 1 "USB_B" V 2200 2200 50  0000 C CNN
F 2 "Connectors_USB:USB_B_OST_USB-B1HSxx_Horizontal" V 2450 2100 50  0001 C CNN
F 3 "" V 2450 2100 50  0000 C CNN
	1    2500 2200
	0    1    -1   0   
$EndComp
$Comp
L stm32f042-rescue:GND-stm32-rescue #PWR01
U 1 1 5CEABE82
P 975 2250
F 0 "#PWR01" H 975 2000 50  0001 C CNN
F 1 "GND" H 975 2100 50  0000 C CNN
F 2 "" H 975 2250 50  0000 C CNN
F 3 "" H 975 2250 50  0000 C CNN
	1    975  2250
	1    0    0    -1  
$EndComp
$Comp
L stm32f042-rescue:R-stm32-rescue R1
U 1 1 5CEABEA6
P 1000 1725
F 0 "R1" V 1080 1725 50  0000 C CNN
F 1 "22" V 1000 1725 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 930 1725 50  0001 C CNN
F 3 "" H 1000 1725 50  0001 C CNN
	1    1000 1725
	0    1    1    0   
$EndComp
$Comp
L stm32f042-rescue:R-stm32-rescue R2
U 1 1 5CEABEAC
P 1000 2725
F 0 "R2" V 1080 2725 50  0000 C CNN
F 1 "22" V 1000 2725 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 930 2725 50  0001 C CNN
F 3 "" H 1000 2725 50  0001 C CNN
	1    1000 2725
	0    1    1    0   
$EndComp
Wire Wire Line
	2600 1850 2600 1900
Wire Wire Line
	1150 1725 1375 1725
Wire Wire Line
	1150 2725 1375 2725
Wire Wire Line
	975  2250 975  2225
Wire Wire Line
	2200 1850 2200 2100
Wire Wire Line
	1575 1725 2100 1725
Wire Wire Line
	2100 1725 2100 2200
Wire Wire Line
	2100 2200 2200 2200
$Comp
L Power_Protection:USBLC6-2SC6 U1
U 1 1 5CED0250
P 1475 2225
F 0 "U1" V 2050 2175 50  0000 L CNN
F 1 "USBLC6-2SC6" V 875 1950 50  0000 L CNN
F 2 "TO_SOT_Packages_SMD:SOT-23-6_Handsoldering" H 725 2625 50  0001 C CNN
F 3 "http://www2.st.com/resource/en/datasheet/CD00050750.pdf" H 1675 2575 50  0001 C CNN
	1    1475 2225
	0    1    1    0   
$EndComp
Text Label 850  2725 2    50   ~ 0
USBDM
Text Label 850  1725 2    50   ~ 0
USBDP
$Comp
L Device:D_Schottky D3
U 1 1 5D89B9B8
P 2350 2625
F 0 "D3" H 2325 2450 50  0000 C CNN
F 1 "SS14" H 2350 2525 50  0000 C CNN
F 2 "Diode_SMD:D_SMB_Handsoldering" H 2350 2625 50  0001 C CNN
F 3 "~" H 2350 2625 50  0001 C CNN
	1    2350 2625
	-1   0    0    -1  
$EndComp
Wire Wire Line
	1575 2725 1925 2725
Wire Notes Line
	2775 1525 550  1525
Text Notes 2275 1650 0    61   ~ 0
USB
Wire Wire Line
	2200 1850 2275 1850
Wire Wire Line
	2200 2350 1975 2350
Wire Wire Line
	1975 2350 1975 2225
Wire Wire Line
	2200 2350 2200 2400
$Comp
L power:GND #PWR07
U 1 1 5DDACF17
P 2275 1850
F 0 "#PWR07" H 2275 1600 50  0001 C CNN
F 1 "GND" H 2280 1677 50  0000 C CNN
F 2 "" H 2275 1850 50  0001 C CNN
F 3 "" H 2275 1850 50  0001 C CNN
	1    2275 1850
	1    0    0    -1  
$EndComp
Wire Wire Line
	1925 2300 2200 2300
Wire Wire Line
	1925 2300 1925 2725
Connection ~ 2200 2400
$Comp
L Connector_Generic:Conn_01x02 J2
U 1 1 5D2DE414
P 2025 5125
F 0 "J2" H 2025 4925 50  0000 C CNN
F 1 "Conn" H 2025 4850 50  0000 C CNN
F 2 "TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal" H 2025 5125 50  0001 C CNN
F 3 "~" H 2025 5125 50  0001 C CNN
	1    2025 5125
	-1   0    0    1   
$EndComp
$Comp
L stm32f042-rescue:STM32F042C6Tx-stm32-rescue U2
U 1 1 58C42C0E
P 7425 2525
F 0 "U2" H 4425 4250 50  0000 L BNN
F 1 "STM32F042C6Tx" H 10425 4250 50  0000 R BNN
F 2 "Package_QFP:LQFP-48_7x7mm_P0.5mm" H 10425 4200 50  0001 R TNN
F 3 "" H 7425 2525 50  0000 C CNN
	1    7425 2525
	1    0    0    -1  
$EndComp
$Comp
L stm32f042-rescue:C-stm32-rescue C3
U 1 1 58C42D39
P 7025 4625
F 0 "C3" H 7050 4725 50  0000 L CNN
F 1 "0.1" H 7050 4525 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 7063 4475 50  0001 C CNN
F 3 "" H 7025 4625 50  0000 C CNN
	1    7025 4625
	1    0    0    -1  
$EndComp
Text Label 10525 3825 0    60   ~ 0
LED0
Text Label 10525 3925 0    60   ~ 0
LED1
$Comp
L stm32f042-rescue:C-stm32-rescue C4
U 1 1 5D6B4F1F
P 7325 4625
F 0 "C4" H 7350 4725 50  0000 L CNN
F 1 "0.1" H 7350 4525 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 7363 4475 50  0001 C CNN
F 3 "" H 7325 4625 50  0000 C CNN
	1    7325 4625
	1    0    0    -1  
$EndComp
$Comp
L stm32f042-rescue:C-stm32-rescue C5
U 1 1 59093675
P 7625 4625
F 0 "C5" H 7650 4725 50  0000 L CNN
F 1 "0.1" H 7650 4525 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 7663 4475 50  0001 C CNN
F 3 "" H 7625 4625 50  0000 C CNN
	1    7625 4625
	1    0    0    -1  
$EndComp
Text Label 7325 575  0    60   ~ 0
VDD
$Comp
L stm32f042-rescue:+3.3V-stm32-rescue #PWR016
U 1 1 5D6B4F21
P 8325 4775
F 0 "#PWR016" H 8325 4625 50  0001 C CNN
F 1 "+3.3V" H 8325 4915 50  0000 C CNN
F 2 "" H 8325 4775 50  0000 C CNN
F 3 "" H 8325 4775 50  0000 C CNN
	1    8325 4775
	1    0    0    -1  
$EndComp
$Comp
L stm32f042-rescue:GND-stm32-rescue #PWR014
U 1 1 5D6B4F22
P 6675 4475
F 0 "#PWR014" H 6675 4225 50  0001 C CNN
F 1 "GND" H 6675 4325 50  0000 C CNN
F 2 "" H 6675 4475 50  0000 C CNN
F 3 "" H 6675 4475 50  0000 C CNN
	1    6675 4475
	1    0    0    -1  
$EndComp
Text Label 8425 4775 0    60   ~ 0
VDD
$Comp
L stm32f042-rescue:C-stm32-rescue C6
U 1 1 5D6B4F23
P 7925 4625
F 0 "C6" H 7950 4725 50  0000 L CNN
F 1 "0.1" H 7950 4525 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 7963 4475 50  0001 C CNN
F 3 "" H 7925 4625 50  0000 C CNN
	1    7925 4625
	1    0    0    -1  
$EndComp
NoConn ~ 4325 1425
$Comp
L stm32f042-rescue:CONN_01X03-stm32-rescue P2
U 1 1 5D6B4F24
P 11050 4325
F 0 "P2" H 11050 4525 50  0000 C CNN
F 1 "USART_BOOT" V 11150 4325 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical" H 11050 4325 50  0001 C CNN
F 3 "" H 11050 4325 50  0000 C CNN
	1    11050 4325
	1    0    0    1   
$EndComp
$Comp
L stm32f042-rescue:GND-stm32-rescue #PWR019
U 1 1 590AD6E0
P 10850 4475
F 0 "#PWR019" H 10850 4225 50  0001 C CNN
F 1 "GND" H 10850 4325 50  0000 C CNN
F 2 "" H 10850 4475 50  0000 C CNN
F 3 "" H 10850 4475 50  0000 C CNN
	1    10850 4475
	-1   0    0    -1  
$EndComp
Text Label 4325 3125 2    60   ~ 0
SDA
Text Label 4325 3025 2    60   ~ 0
SCL
Text Label 4325 1225 2    60   ~ 0
NRST
Text Label 4325 1825 2    60   ~ 0
BOOT0
$Comp
L stm32f042-rescue:CONN_01X01-stm32-rescue P3
U 1 1 59143415
P 12250 1250
F 0 "P3" H 12250 1350 50  0000 C CNN
F 1 "Hole" V 12350 1250 50  0000 C CNN
F 2 "my_footprints:Hole_3mm" H 12250 1250 50  0001 C CNN
F 3 "" H 12250 1250 50  0000 C CNN
	1    12250 1250
	1    0    0    -1  
$EndComp
$Comp
L stm32f042-rescue:CONN_01X01-stm32-rescue P4
U 1 1 5914456D
P 12250 1500
F 0 "P4" H 12250 1600 50  0000 C CNN
F 1 "Hole" V 12350 1500 50  0000 C CNN
F 2 "my_footprints:Hole_3mm" H 12250 1500 50  0001 C CNN
F 3 "" H 12250 1500 50  0000 C CNN
	1    12250 1500
	1    0    0    -1  
$EndComp
$Comp
L stm32f042-rescue:CONN_01X01-stm32-rescue P5
U 1 1 5D6B4F29
P 12250 1750
F 0 "P5" H 12250 1850 50  0000 C CNN
F 1 "Hole" V 12350 1750 50  0000 C CNN
F 2 "my_footprints:Hole_3mm" H 12250 1750 50  0001 C CNN
F 3 "" H 12250 1750 50  0000 C CNN
	1    12250 1750
	1    0    0    -1  
$EndComp
$Comp
L stm32f042-rescue:CONN_01X01-stm32-rescue P6
U 1 1 5D6B4F2A
P 12250 2000
F 0 "P6" H 12250 2100 50  0000 C CNN
F 1 "Hole" V 12350 2000 50  0000 C CNN
F 2 "my_footprints:Hole_3mm" H 12250 2000 50  0001 C CNN
F 3 "" H 12250 2000 50  0000 C CNN
	1    12250 2000
	1    0    0    -1  
$EndComp
NoConn ~ 12050 1250
NoConn ~ 12050 1500
NoConn ~ 12050 1750
NoConn ~ 12050 2000
Wire Wire Line
	7225 4325 7325 4325
Connection ~ 7325 4325
Wire Wire Line
	7325 4475 7325 4325
Wire Wire Line
	7225 725  7325 725 
Connection ~ 7325 725 
Wire Wire Line
	7325 725  7325 575 
Wire Wire Line
	10525 3525 10875 3525
Wire Wire Line
	10875 3625 10525 3625
Wire Wire Line
	6675 4475 7025 4475
Connection ~ 7325 4475
Wire Wire Line
	7025 4775 7325 4775
Connection ~ 7325 4775
Connection ~ 7025 4475
Connection ~ 7625 4775
Connection ~ 8325 4775
Connection ~ 7425 725 
Connection ~ 7425 4325
Connection ~ 7625 4475
Wire Wire Line
	7925 4775 7625 4775
Connection ~ 7925 4775
Wire Wire Line
	10850 4425 10850 4475
NoConn ~ 4325 3825
NoConn ~ 4325 2225
NoConn ~ 4325 2125
NoConn ~ 4325 1725
NoConn ~ 4325 1625
Wire Wire Line
	10525 3425 10675 3425
Wire Wire Line
	10675 3425 10675 4325
Wire Wire Line
	10675 4325 10850 4325
Wire Wire Line
	10850 4225 10775 4225
Wire Wire Line
	10775 4225 10775 3325
Wire Wire Line
	10775 3325 10525 3325
NoConn ~ 10525 2625
Wire Wire Line
	7325 4325 7425 4325
Wire Wire Line
	7325 725  7425 725 
Wire Wire Line
	7325 4475 7625 4475
Wire Wire Line
	7325 4775 7625 4775
Wire Wire Line
	7025 4475 7325 4475
Wire Wire Line
	8325 4775 8425 4775
Wire Wire Line
	7425 725  7525 725 
Wire Wire Line
	7425 4325 7525 4325
Wire Wire Line
	7625 4475 7925 4475
Wire Wire Line
	7925 4775 8325 4775
NoConn ~ 10525 3725
NoConn ~ 10525 3225
Text Label 10875 3625 0    50   ~ 0
USBDP
Text Label 10875 3525 0    50   ~ 0
USBDM
Text Label 2500 2625 0    60   ~ 0
5Vusb
$Comp
L Connector:4P4C J1
U 1 1 5D692FC5
P 1825 6150
F 0 "J1" H 1496 6154 50  0000 R CNN
F 1 "4P4C" H 1496 6245 50  0000 R CNN
F 2 "my_footprints:RJ9-4P4C" V 1825 6200 50  0001 C CNN
F 3 "~" V 1825 6200 50  0001 C CNN
	1    1825 6150
	1    0    0    1   
$EndComp
$Comp
L power:GND #PWR06
U 1 1 5D695241
P 2250 6400
F 0 "#PWR06" H 2250 6150 50  0001 C CNN
F 1 "GND" H 2255 6227 50  0000 C CNN
F 2 "" H 2250 6400 50  0001 C CNN
F 3 "" H 2250 6400 50  0001 C CNN
	1    2250 6400
	1    0    0    -1  
$EndComp
Wire Wire Line
	2250 6400 2250 6350
Wire Wire Line
	2250 6350 2225 6350
Connection ~ 2275 1850
Wire Wire Line
	2275 1850 2600 1850
Wire Notes Line
	550  1525 550  2875
Wire Notes Line
	550  2875 2775 2875
Wire Notes Line
	2775 2875 2775 1525
$Comp
L Connector_Generic:Conn_01x02 J3
U 1 1 5D6A6D23
P 2025 5375
F 0 "J3" H 2025 5475 50  0000 C CNN
F 1 "Conn" H 2025 5550 50  0000 C CNN
F 2 "TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal" H 2025 5375 50  0001 C CNN
F 3 "~" H 2025 5375 50  0001 C CNN
	1    2025 5375
	-1   0    0    1   
$EndComp
$Comp
L stm32f042-rescue:LM1117-3.3-RESCUE-stm32-stm32-rescue U3
U 1 1 58C431FC
P 10025 5775
F 0 "U3" H 10125 5525 50  0000 C CNN
F 1 "LM1117-3.3" H 10025 6025 50  0000 C CNN
F 2 "TO_SOT_Packages_SMD:SOT-223" H 10025 5775 50  0001 C CNN
F 3 "" H 10025 5775 50  0000 C CNN
	1    10025 5775
	1    0    0    -1  
$EndComp
$Comp
L stm32f042-rescue:GND-stm32-rescue #PWR017
U 1 1 58C453C7
P 10025 6125
F 0 "#PWR017" H 10025 5875 50  0001 C CNN
F 1 "GND" H 10025 5975 50  0000 C CNN
F 2 "" H 10025 6125 50  0000 C CNN
F 3 "" H 10025 6125 50  0000 C CNN
	1    10025 6125
	1    0    0    -1  
$EndComp
$Comp
L stm32f042-rescue:CP-stm32-rescue C7
U 1 1 58C454F6
P 10425 5925
F 0 "C7" H 10450 6025 50  0000 L CNN
F 1 "47u" H 10450 5825 50  0000 L CNN
F 2 "Capacitor_Tantalum_SMD:CP_EIA-3216-18_Kemet-A_Pad1.58x1.35mm_HandSolder" H 10463 5775 50  0001 C CNN
F 3 "" H 10425 5925 50  0000 C CNN
	1    10425 5925
	1    0    0    -1  
$EndComp
$Comp
L stm32f042-rescue:+3.3V-stm32-rescue #PWR018
U 1 1 58C455CB
P 10625 5775
F 0 "#PWR018" H 10625 5625 50  0001 C CNN
F 1 "+3.3V" H 10625 5915 50  0000 C CNN
F 2 "" H 10625 5775 50  0000 C CNN
F 3 "" H 10625 5775 50  0000 C CNN
	1    10625 5775
	1    0    0    -1  
$EndComp
Text Label 875  950  2    60   ~ 0
LED0
Text Label 875  1250 2    60   ~ 0
LED1
$Comp
L stm32f042-rescue:LED-RESCUE-stm32-stm32-rescue D1
U 1 1 5908EA64
P 1175 950
F 0 "D1" H 1175 1050 50  0000 C CNN
F 1 "LED0" H 1175 850 50  0000 C CNN
F 2 "LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 1175 950 50  0001 C CNN
F 3 "" H 1175 950 50  0000 C CNN
	1    1175 950 
	1    0    0    -1  
$EndComp
$Comp
L stm32f042-rescue:R-stm32-rescue R5
U 1 1 5908EB17
P 1575 950
F 0 "R5" V 1655 950 50  0000 C CNN
F 1 "330" V 1575 950 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 1505 950 50  0001 C CNN
F 3 "" H 1575 950 50  0000 C CNN
	1    1575 950 
	0    -1   -1   0   
$EndComp
$Comp
L stm32f042-rescue:+3.3V-stm32-rescue #PWR03
U 1 1 5908F9F4
P 1875 950
F 0 "#PWR03" H 1875 800 50  0001 C CNN
F 1 "+3.3V" H 1875 1090 50  0000 C CNN
F 2 "" H 1875 950 50  0000 C CNN
F 3 "" H 1875 950 50  0000 C CNN
	1    1875 950 
	1    0    0    -1  
$EndComp
$Comp
L stm32f042-rescue:LED-RESCUE-stm32-stm32-rescue D2
U 1 1 5909AF9A
P 1175 1250
F 0 "D2" H 1175 1350 50  0000 C CNN
F 1 "LED1" H 1175 1150 50  0000 C CNN
F 2 "LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 1175 1250 50  0001 C CNN
F 3 "" H 1175 1250 50  0000 C CNN
	1    1175 1250
	1    0    0    -1  
$EndComp
$Comp
L stm32f042-rescue:R-stm32-rescue R6
U 1 1 5909AFA0
P 1575 1250
F 0 "R6" V 1655 1250 50  0000 C CNN
F 1 "330" V 1575 1250 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 1505 1250 50  0001 C CNN
F 3 "" H 1575 1250 50  0000 C CNN
	1    1575 1250
	0    -1   -1   0   
$EndComp
$Comp
L stm32f042-rescue:+3.3V-stm32-rescue #PWR04
U 1 1 5909AFA6
P 1875 1250
F 0 "#PWR04" H 1875 1100 50  0001 C CNN
F 1 "+3.3V" H 1875 1390 50  0000 C CNN
F 2 "" H 1875 1250 50  0000 C CNN
F 3 "" H 1875 1250 50  0000 C CNN
	1    1875 1250
	1    0    0    -1  
$EndComp
Text Notes 725  700  0    60   ~ 0
LED indicators
Text Notes 9650 5450 0    60   ~ 0
3.3V MCU power source
Wire Wire Line
	10025 6125 10025 6075
Wire Wire Line
	10325 5775 10425 5775
Connection ~ 10425 5775
Wire Wire Line
	875  950  1025 950 
Wire Wire Line
	1325 950  1425 950 
Wire Wire Line
	1725 950  1875 950 
Wire Wire Line
	875  1250 1025 1250
Wire Wire Line
	1325 1250 1425 1250
Wire Wire Line
	1725 1250 1875 1250
Wire Notes Line
	575  600  575  1400
Wire Notes Line
	575  1400 2075 1400
Wire Notes Line
	2075 1400 2075 600 
Wire Notes Line
	2075 600  575  600 
Wire Notes Line
	10925 5325 10925 6375
Text Label 9325 5775 2    60   ~ 0
5Vusb
$Comp
L stm32f042-rescue:D_Schottky-stm32-rescue D4
U 1 1 5A545B43
P 7950 5700
F 0 "D4" H 7900 5800 50  0000 C CNN
F 1 "SS14" H 8050 5800 50  0000 C CNN
F 2 "Diode_SMD:D_SMB_Handsoldering" H 7950 5700 50  0001 C CNN
F 3 "" H 7950 5700 50  0001 C CNN
	1    7950 5700
	1    0    0    -1  
$EndComp
Wire Wire Line
	10325 5725 10325 5775
Connection ~ 10325 5775
Wire Wire Line
	10425 5775 10625 5775
Wire Wire Line
	10325 5775 10325 5825
Wire Wire Line
	10025 6075 10425 6075
Connection ~ 10025 6075
$Comp
L Device:Battery_Cell BT1
U 1 1 5D7DDF56
P 7550 6050
F 0 "BT1" H 7250 6075 50  0000 L CNN
F 1 "Battery_Cell" H 7050 6175 50  0000 L CNN
F 2 "Battery:BatteryHolder_MPD_BH-18650-PC2" V 7550 6110 50  0001 C CNN
F 3 "~" V 7550 6110 50  0001 C CNN
	1    7550 6050
	1    0    0    -1  
$EndComp
$Comp
L stm32f042-rescue:GND-stm32-rescue #PWR015
U 1 1 5D812B83
P 7550 6150
F 0 "#PWR015" H 7550 5900 50  0001 C CNN
F 1 "GND" H 7550 6000 50  0000 C CNN
F 2 "" H 7550 6150 50  0000 C CNN
F 3 "" H 7550 6150 50  0000 C CNN
	1    7550 6150
	1    0    0    -1  
$EndComp
$Comp
L stm32f042-rescue:+3.3V-stm32-rescue #PWR09
U 1 1 5D82928E
P 2775 6550
F 0 "#PWR09" H 2775 6400 50  0001 C CNN
F 1 "+3.3V" H 2775 6690 50  0000 C CNN
F 2 "" H 2775 6550 50  0000 C CNN
F 3 "" H 2775 6550 50  0000 C CNN
	1    2775 6550
	-1   0    0    1   
$EndComp
NoConn ~ 4325 3925
NoConn ~ 4325 3325
NoConn ~ 4325 2725
NoConn ~ 10525 2725
NoConn ~ 10525 3025
$Comp
L Device:R R8
U 1 1 5D850AD1
P 2625 6150
F 0 "R8" V 2700 6150 50  0000 C CNN
F 1 "4k7" V 2625 6150 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 2555 6150 50  0001 C CNN
F 3 "~" H 2625 6150 50  0001 C CNN
	1    2625 6150
	0    1    1    0   
$EndComp
$Comp
L Device:R R7
U 1 1 5D85121F
P 2625 6050
F 0 "R7" V 2550 6050 50  0000 C CNN
F 1 "4k7" V 2625 6050 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 2555 6050 50  0001 C CNN
F 3 "~" H 2625 6050 50  0001 C CNN
	1    2625 6050
	0    1    1    0   
$EndComp
Text Label 2225 6050 0    50   ~ 0
SDA
Text Label 2225 6150 0    50   ~ 0
SCL
Wire Wire Line
	2225 6050 2475 6050
Wire Wire Line
	2475 6150 2225 6150
Wire Wire Line
	2775 6250 2775 6150
Wire Wire Line
	2775 6150 2775 6050
Connection ~ 2775 6150
$Comp
L power:GND #PWR05
U 1 1 5D860ECC
P 2225 5375
F 0 "#PWR05" H 2225 5125 50  0001 C CNN
F 1 "GND" H 2230 5202 50  0000 C CNN
F 2 "" H 2225 5375 50  0001 C CNN
F 3 "" H 2225 5375 50  0001 C CNN
	1    2225 5375
	1    0    0    -1  
$EndComp
Text Label 2225 5125 0    50   ~ 0
SDA
Text Label 2225 5275 0    50   ~ 0
SCL
$Comp
L Device:R R9
U 1 1 5D86E056
P 2775 6400
F 0 "R9" V 2700 6400 50  0000 C CNN
F 1 "22" V 2775 6400 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 2705 6400 50  0001 C CNN
F 3 "~" H 2775 6400 50  0001 C CNN
	1    2775 6400
	-1   0    0    1   
$EndComp
Connection ~ 2775 6250
Wire Wire Line
	2225 6250 2775 6250
Text Label 2775 6250 0    50   ~ 0
3V3Sensors
Text Label 2225 5025 0    50   ~ 0
3V3Sensors
Text Label 9325 5850 2    50   ~ 0
Battery
Wire Notes Line
	10925 5325 8700 5325
Wire Notes Line
	8700 5325 8700 6375
Wire Notes Line
	8700 6375 10925 6375
$Comp
L Device:Q_PMOS_GSD Q1
U 1 1 5D886416
P 7975 5950
F 0 "Q1" V 8000 6175 50  0000 C CNN
F 1 "AO3407" V 7925 6175 50  0000 C CNN
F 2 "TO_SOT_Packages_SMD:SOT-23_Handsoldering" H 8175 6050 50  0001 C CNN
F 3 "~" H 7975 5950 50  0001 C CNN
	1    7975 5950
	0    1    -1   0   
$EndComp
$Comp
L stm32f042-rescue:R-stm32-rescue R11
U 1 1 5D89C1EC
P 7750 6050
F 0 "R11" V 7830 6050 50  0000 C CNN
F 1 "10k" V 7750 6050 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 7680 6050 50  0001 C CNN
F 3 "" H 7750 6050 50  0000 C CNN
	1    7750 6050
	1    0    0    -1  
$EndComp
$Comp
L Device:R R12
U 1 1 5D89C918
P 8125 6150
F 0 "R12" V 8050 6150 50  0000 C CNN
F 1 "510" V 8125 6150 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 8055 6150 50  0001 C CNN
F 3 "~" H 8125 6150 50  0001 C CNN
	1    8125 6150
	0    -1   -1   0   
$EndComp
Wire Wire Line
	8275 6150 8275 6275
Text Label 8275 6150 0    50   ~ 0
POWERON
Text Label 8175 5850 0    50   ~ 0
Battery
$Comp
L Switch:SW_Push SW3
U 1 1 5D8C5989
P 7950 5525
F 0 "SW3" H 8000 5625 50  0000 L CNN
F 1 "Poweron" H 7950 5725 50  0000 C CNN
F 2 "Button_Switch_THT:SW_PUSH_6mm_H13mm" H 7950 5725 50  0001 C CNN
F 3 "" H 7950 5725 50  0000 C CNN
	1    7950 5525
	1    0    0    -1  
$EndComp
Wire Wire Line
	7750 5525 7750 5700
Wire Wire Line
	7550 5850 7750 5850
Connection ~ 7750 5850
Wire Wire Line
	7750 5850 7775 5850
Wire Wire Line
	8175 5850 8175 5700
Wire Wire Line
	8175 5525 8150 5525
Wire Wire Line
	7750 5900 7750 5850
Wire Wire Line
	7750 6200 7750 6275
Wire Wire Line
	7750 6275 8275 6275
Wire Wire Line
	9325 5850 9325 5775
Wire Wire Line
	7750 5700 7800 5700
Connection ~ 7750 5700
Wire Wire Line
	7750 5700 7750 5850
Connection ~ 8175 5700
Wire Wire Line
	8175 5700 8175 5525
Wire Wire Line
	8100 5700 8175 5700
$Comp
L stm32f042-rescue:R-stm32-rescue R4
U 1 1 5D93631F
P 1175 3575
F 0 "R4" V 1255 3575 50  0000 C CNN
F 1 "51k" V 1175 3575 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 1105 3575 50  0001 C CNN
F 3 "" H 1175 3575 50  0001 C CNN
	1    1175 3575
	-1   0    0    1   
$EndComp
$Comp
L stm32f042-rescue:R-stm32-rescue R3
U 1 1 5D936816
P 1175 3275
F 0 "R3" V 1255 3275 50  0000 C CNN
F 1 "51k" V 1175 3275 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 1105 3275 50  0001 C CNN
F 3 "" H 1175 3275 50  0001 C CNN
	1    1175 3275
	-1   0    0    1   
$EndComp
Text Label 1175 3125 2    60   ~ 0
U5V
$Comp
L stm32f042-rescue:GND-stm32-rescue #PWR02
U 1 1 5D93B6B4
P 1175 3725
F 0 "#PWR02" H 1175 3475 50  0001 C CNN
F 1 "GND" H 1175 3575 50  0000 C CNN
F 2 "" H 1175 3725 50  0000 C CNN
F 3 "" H 1175 3725 50  0000 C CNN
	1    1175 3725
	1    0    0    -1  
$EndComp
Text Label 1250 3425 0    50   ~ 0
USBON
Wire Wire Line
	1250 3425 1175 3425
Connection ~ 1175 3425
Text Label 10525 2525 0    50   ~ 0
USBON
Text Label 4325 2025 2    50   ~ 0
POWERON
Text Label 10525 2925 0    50   ~ 0
SCK
$Comp
L Connector:Conn_01x07_Female J4
U 1 1 5D96F1EC
P 2375 4025
F 0 "J4" H 2267 3500 50  0000 C CNN
F 1 "SPI_screen" H 2267 3591 50  0000 C CNN
F 2 "Connector_PinSocket_2.54mm:PinSocket_1x07_P2.54mm_Vertical" H 2375 4025 50  0001 C CNN
F 3 "~" H 2375 4025 50  0001 C CNN
	1    2375 4025
	-1   0    0    1   
$EndComp
$Comp
L power:GND #PWR08
U 1 1 5D97C4A7
P 2600 4325
F 0 "#PWR08" H 2600 4075 50  0001 C CNN
F 1 "GND" H 2605 4152 50  0000 C CNN
F 2 "" H 2600 4325 50  0001 C CNN
F 3 "" H 2600 4325 50  0001 C CNN
	1    2600 4325
	1    0    0    -1  
$EndComp
Wire Wire Line
	2575 4325 2600 4325
$Comp
L stm32f042-rescue:+3.3V-stm32-rescue #PWR010
U 1 1 5D980822
P 2800 4225
F 0 "#PWR010" H 2800 4075 50  0001 C CNN
F 1 "+3.3V" H 2800 4365 50  0000 C CNN
F 2 "" H 2800 4225 50  0000 C CNN
F 3 "" H 2800 4225 50  0000 C CNN
	1    2800 4225
	-1   0    0    1   
$EndComp
Wire Wire Line
	2800 4225 2575 4225
Text Label 2575 4125 0    50   ~ 0
SCK
Text Label 10525 3125 0    50   ~ 0
MOSI
Text Label 2575 4025 0    50   ~ 0
MOSI
Text Label 4325 2425 2    50   ~ 0
RST
Text Label 2575 3925 0    50   ~ 0
RST
Text Label 4325 2525 2    50   ~ 0
D-C
Text Label 2575 3825 0    50   ~ 0
D-C
Text Label 4325 2625 2    50   ~ 0
CS
Text Label 2575 3725 0    50   ~ 0
CS
$Comp
L stm32f042-rescue:PWR_FLAG-stm32-rescue #FLG0101
U 1 1 5D99C03C
P 975 2225
F 0 "#FLG0101" H 975 2320 50  0001 C CNN
F 1 "PWR_FLAG" H 975 2405 50  0001 C CNN
F 2 "" H 975 2225 50  0000 C CNN
F 3 "" H 975 2225 50  0000 C CNN
	1    975  2225
	-1   0    0    -1  
$EndComp
Connection ~ 975  2225
$Comp
L stm32f042-rescue:PWR_FLAG-stm32-rescue #FLG0102
U 1 1 5D9A5ED8
P 9325 5850
F 0 "#FLG0102" H 9325 5945 50  0001 C CNN
F 1 "PWR_FLAG" H 9325 6030 50  0001 C CNN
F 2 "" H 9325 5850 50  0000 C CNN
F 3 "" H 9325 5850 50  0000 C CNN
	1    9325 5850
	1    0    0    1   
$EndComp
NoConn ~ 4325 3225
NoConn ~ 4325 2825
NoConn ~ 4325 2925
NoConn ~ 10525 2825
NoConn ~ 4325 3425
NoConn ~ 4325 3525
NoConn ~ 4325 3625
NoConn ~ 4325 3725
$Comp
L stm32f042-rescue:C-stm32-rescue C8
U 1 1 5DA0ADC1
P 9625 5925
F 0 "C8" H 9650 6025 50  0000 L CNN
F 1 "0.1" H 9650 5825 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 9663 5775 50  0001 C CNN
F 3 "" H 9625 5925 50  0000 C CNN
	1    9625 5925
	1    0    0    -1  
$EndComp
Wire Wire Line
	9625 5775 9725 5775
Wire Wire Line
	9325 5775 9625 5775
Connection ~ 9625 5775
Wire Wire Line
	2200 2400 2200 2625
Text Label 2200 2550 2    60   ~ 0
U5V
NoConn ~ 10525 2425
Wire Wire Line
	9625 6075 10025 6075
$Comp
L stm32f042-rescue:PWR_FLAG-stm32-rescue #FLG0103
U 1 1 5DA5EB00
P 2200 2625
F 0 "#FLG0103" H 2200 2720 50  0001 C CNN
F 1 "PWR_FLAG" H 2200 2805 50  0001 C CNN
F 2 "" H 2200 2625 50  0000 C CNN
F 3 "" H 2200 2625 50  0000 C CNN
	1    2200 2625
	1    0    0    1   
$EndComp
Connection ~ 2200 2625
$EndSCHEMATC