Name	STM32F4XX M
Part	STM32F4XX_M
Brand	DevEBox
Origin	China

Part	STM32F407VET6
Manufacturer	ST-Microelectronics
Core	Arm Cortex-M4
Max. Clock Speed	168MHz
Package	LQFP 100 pins

FLASH	512KiB
SRAM	192KiB
Backup SRAM	4KiB

HSI	16MHz
LSI	32kHz
HSE	8MHz
LSE	32.768kHz

Sources	Any +3.3V pin (+3.3V) Any +5V pin (+5V) USB connector (+5V)
VDDA pin	Yes
VSSA pin	No
VREF- pin	No
VREF+ pin	Yes
Backup battery	Header

Manufacturer	Advanced Monolithic Systems Inc.
Part	AMS1117 (AMS1117)
Package	SOT223 3 pins
Input	+4.6V to +15V
Output	+3.3V @ 1A
Datasheet	AMS1117.pdf

Color	Black
Size (w x l)	40mm x 68mm
Mounting	4x mounting hole (M3)

• Warning: The +5V pins on this board are directly connected to the +5V pin of the USB connector. There is no protection in place. Do not power this board through USB and an external power supply at the same time.

• Perspective view
• Top view
• Bottom view
• Original schematic
• Original dimensions drawing

Name	RST
Reference	-
Type	Button
Connected to	NRST
Mode	Active low

Name	K1
Reference	-
Type	Button
Connected to	PA0
Mode	Active high

Name	-
Reference	D1
Type	LED
Connected to	+3.3V rail
Mode	N.A.

Name	-
Reference	D2
Type	LED
Connected to	PA1
Mode	Sink

Name	Unknown
Reference	None
Type	Pin header (2.54mm, 22x2, male)

#	Name	Function	Connected to
1	3V3	-	+3.3V rail
2	3V3	-	+3.3V rail
3	GND	-	Ground plane
4	GND	-	Ground plane
5	GND	-	Ground plane
6	GND	-	Ground plane
7	VDDA	-	VDDA
8	VREF+	-	VREF+
9	PB14	-	PB14
10	PB13	-	PB13
11	PB12	-	PB12
12	PB11	-	PB11
13	PB10	-	PB10
14	PE15	-	PE15
15	PE14	-	PE14
16	PE13	-	PE13
17	PE12	-	PE12
18	PE11	-	PE11
19	PE10	-	PE10
20	PE9	-	PE9
21	PE8	-	PE8
22	PE7	-	PE7
23	PB1	-	PB1
24	PB0	-	PB0
25	PC5	-	PC5
26	PC4	-	PC4
27	PA7	-	PA7
28	PA6	-	PA6
29	PA5	-	PA5
30	PA4	-	PA4
31	PA3	-	PA3
32	PA2	-	PA2
33	PA1	-	PA1
34	PA0	-	PA0
35	PC3	-	PC3
36	PC2	-	PC2
37	PC1	-	PC1
38	PC0	-	PC0
39	PC13	-	PC13
40	PE6	-	PE6
41	PE5	-	PE5
42	PE4	-	PE4
43	PE3	-	PE3
44	PE2	-	PE2

Name	Unknown
Reference	None
Type	Pin header (2.54mm, 22x2, male)

#	Name	Function	Connected to
1	5V	-	+5V rail
2	5V	-	+5V rail
3	3V3	-	+3.3V rail
4	3V3	-	+3.3V rail
5	GND	-	Ground plane
6	GND	-	Ground plane
7	PD8	-	PD8
8	PB15	-	PB15
9	PD10	-	PD10
10	PD9	-	PD9
11	PD12	-	PD12
12	PD11	-	PD11
13	PD14	-	PD14
14	PD13	-	PD13
15	PC6	-	PC6
16	PD15	-	PD15
17	PC8	-	PC8
18	PC7	-	PC7
19	PA8	-	PA8
20	PC9	-	PC9
21	PA10	-	PA10
22	PA9	-	PA9
23	PA12	-	PA12
24	PA11	-	PA11
25	PC10	-	PC10
26	PA15	-	PA15
27	PC12	-	PC12
28	PC11	-	PC11
29	PD1	-	PD1
30	PD0	-	PD0
31	PD3	-	PD3
32	PD2	-	PD2
33	PD5	-	PD5
34	PD4	-	PD4
35	PD7	-	PD7
36	PD6	-	PD6
37	PB5	-	PB5
38	PB3	-	PB3
39	PB7	-	PB7
40	PB6	-	PB6
41	PB9	-	PB9
42	PB8	-	PB8
43	PE1	-	PE1
44	PE0	-	PE0

Name	Unknown
Reference	J5
Type	USB Micro

#	Name	Function	Connected to
1	-	VCC	+5V rail
2	-	D-	PA11 via 22Ω resistor (R2)
3	-	D+	PA12 via 22Ω resistor (R3)
4	-	ID	N.C.
5	-	GND	Ground plane

Name	Unknown
Reference	J1
Type	Pin header (2.54mm, 22x2, male)

#	Name	Function	Connected to
1	BT0	-	BOOT0
2	3V3	-	+3.3V rail
3	GND	-	Ground plane
4	SWDIO	-	PA13
5	SWCLK	-	PA14

Name	Unknown
Reference	J4
Type	Pin header (2.54mm, 8x1, female)

#	Name	Function	Connected to
1	3V3	-	+3.3V rail
2	GND	-	Ground plane
3	SDI	-	PB15
4	SCL	-	PB13
5	CS	-	PB12
6	SDO	-	PB14
7	D/C	-	PC5
8	BLK	-	PB1

Name	Unknown
Reference	None
Type	microSD

#	Name	Function	Connected to
1	-	DAT2	PC10, pulled up via 10kΩ (PR2)
2	-	CD/DAT3	PC11, pulled up via 10kΩ (PR2)
3	-	CMD	PD2, pulled up via 10kΩ (PR2)
4	-	VDD	+3.3V rail
5	-	CLK	PC12, pulled up via 10kΩ (PR2)
6	-	VSS	Ground plane
7	-	DAT0	PC8, pulled up via 10kΩ (PR3)
8	-	DAT1	PC9, pulled up via 10kΩ (PR3)
9	-	CD	N.C., pulled up via 10kΩ (PR3)
10	-	Body	Ground plane

Name	Unknown
Reference	B1
Type	Pin header (2.54mm, 2x1, male)

#	Name	Function	Connected to
1	+	-	VBAT
2	-	-	Ground plane

Name	Unknown
Reference	Unknown
Manufacturer	Winbond Electronics Corporation
Part	W25Q16BV
Marking	W25Q16BVSIG
Datasheet	Unavailable
Package	SOIC 8 pins
Description	2MiB Dual/Quad SPI FLASH

#	Name	Function	Connected to
1	-	/CS	PA15
2	-	DO	PB4
3	-	/WP	+3.3V rail
4	-	GND	Ground plane
5	-	DI	PB5
6	-	CLK	PB3
7	-	/HOLD	+3.3V rail
8	-	VCC	+3.3V rail