Name	vcc-gnd.com STM32F103RBT6
Part	Unknown
Brand	vcc-gnd.com
Origin	China

Part	STM32F103RBT6
Manufacturer	ST-Microelectronics
Core	Arm Cortex-M3
Max. Clock Speed	72MHz
Package	UFQFPN 64 pins

FLASH	128KiB
SRAM	20KiB

HSI	8MHz
LSI	40kHz
HSE	8MHz
LSE	32.768kHz

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

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	Blue
Size (w x l)	49mm x 49mm
Mounting	None

• 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	RESET
Reference	-
Type	Button
Connected to	NRST
Mode	Active low

Name	BOOT0
Reference	-
Type	2-way jumper
Connected to	BOOT0
Mode	N.A.

Name	BOOT1
Reference	-
Type	2-way jumper
Connected to	PB2
Mode	N.A.

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

Name	PC13
Reference	-
Type	LED
Connected to	PC13
Mode	Sink

Name	Unknown
Reference	None
Type	Pin header (2.54mm, 13x2, male)

#	Name	Function	Connected to
1	3.3	-	+3.3V rail
2	GND	-	Ground plane
3	VB	-	VBAT
4	B9	-	PB9
5	B8	-	PB8
6	B7	-	PB7
7	B6	-	PB6
8	B5	-	PB5
9	B4	-	PB4
10	B3	-	PB3
11	D2	-	PD2
12	C12	-	PC12
13	C11	-	PC11
14	C10	-	PC10
15	A15	-	PA15
16	A14	-	PA14
17	A13	-	PA13
18	A12	-	PA12
19	A11	-	PA11
20	A10	-	PA10
21	A9	-	PA9
22	A8	-	PA8
23	C9	-	PC9
24	C8	-	PC8
25	C7	-	PC7
26	C6	-	PC6

Name	Unknown
Reference	None
Type	Pin header (2.54mm, 13x2, male)

#	Name	Function	Connected to
1	5v	-	+5V rail
2	GND	-	Ground plane
3	C13	-	PC13
4	C0	-	PC0
5	C1	-	PC1
6	C2	-	PC2
7	C3	-	PC3
8	A0	-	PA0
9	A1	-	PA1
10	A2	-	PA2
11	A3	-	PA3
12	A4	-	PA4
13	A5	-	PA5
14	A6	-	PA6
15	A7	-	PA7
16	C4	-	PC4
17	C5	-	PC5
18	B0	-	PB0
19	B1	-	PB1
20	B2	-	PB2
21	B11	-	PB11
22	B10	-	PB10
23	B13	-	PB13
24	B12	-	PB12
25	B15	-	PB15
26	B14	-	PB14

Name	Unknown
Reference	None
Type	USB Micro

#	Name	Function	Connected to
1	-	VCC	+5V rail
2	-	D-	PA11 via 22Ω resistor (R9)
3	-	D+	PA12 via 22Ω resistor (R8), pulled up by 1.5kΩ resistor (R10)
4	-	ID	Ground plane
5	-	GND	Ground plane

Name	Unknown
Reference	None
Type	Pin header (2.54mm, 4x1, female)

#	Name	Function	Connected to
1	3.3V	VCC	+3.3V rail
2	SWDIO	SWDIO	PA13
3	SWCLK	SWCLK	PA14
4	GND	GND	Ground plane

Name	GND
Reference	None
Type	Pin header (2.54mm, 3x1, male)

#	Name	Function	Connected to
1	-	-	Ground plane
2	-	-	Ground plane
3	-	-	Ground plane

Name	3.3V
Reference	None
Type	Pin header (2.54mm, 3x1, male)

#	Name	Function	Connected to
1	-	-	+3.3V rail
2	-	-	+3.3V rail
3	-	-	+3.3V rail

Name	Unknown
Reference	U1
Manufacturer	Microchip Technology Inc.
Part	AT24C04
Marking	24C08N
Datasheet	AT24C01-02-04-08-16.pdf
Package	SOIC 8 pins
Description	1kB I2C EEPROM

#	Name	Function	Connected to
1	-	A0	Ground plane
2	-	A1	Ground plane
3	-	A2	Ground plane
4	-	GND	Ground plane
5	-	SDA	PB7, pulled up by 4.7kΩ (R3)
6	-	SCL	PB6, pulled up by 4.7kΩ (R2)
7	-	WP	Ground plane
8	-	VCC	+3.3V rail