Black Board

STM32F103C8T6


Board

NameBlack Board
PartUnknown
BrandUnknown
OriginChina

Microcontroller

PartSTM32F103C8T6
ManufacturerST-Microelectronics
CoreArm Cortex-M3
Max. Clock Speed72MHz
PackageLQFP 48 pins

Internal memories

FLASH64KiB
SRAM20KiB

Oscillators

HSI8MHz
LSI40kHz
HSENone
LSENone

Power

Sources
Any +3.3V pin (+3.3V)
Any +5V pin (+5V)
USB connector (+5V)
VDDA pinNo
VSSA pinNo
VREF- pinNo
VREF+ pinNo
Backup batteryPads

Regulator

ManufacturerAdvanced Monolithic Systems Inc.
PartAMS1117 (AMS1117)
PackageSOT223 3 pins
Input+4.6V to +15V
Output+3.3V @ 1A
DatasheetAMS1117.pdf

PCB

ColorBlack
Size (w x l)41mm x 52mm
Mounting4x mounting hole (M3)

Remarks

  • 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.

Pictures

Black Board: Perspective view
Black Board: Perspective view
Black Board: Top view
Black Board: Top view
Black Board: Bottom view
Black Board: Bottom view

Inputs & outputs


Reset button

Name RESET
Reference S1
Type Button
Connected to NRST
Mode Active low

BOOT0 jumper

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

BOOT1 jumper

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

User button

Name PA8
Reference S2
Type Button
Connected to PA8
Mode Active low

Power LED

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

User LED

Name PA1 LED
Reference D2
Type LED
Connected to PA1
Mode Sink

Connectors & headers


Header 1 properties

Name Unknown
Reference None
Type Pin header (2.54mm, 10x2, male)

Header 1 pins

# Name Function Connected to
1 B14 - PB14
2 B15 - PB15
3 B12 - PB12
4 B13 - PB13
5 B10 - PB10
6 B11 - PB11
7 B8 - PB8
8 B9 - PB9
9 B6 - PB6
10 B7 - PB7
11 B4 - PB4
12 B5 - PB5
13 B2 - PB2
14 B3 - PB3
15 B0 - PB0
16 B1 - PB1
17 C13 - PC13
18 3.3 - +3.3V rail
19 5V - +5V rail
20 GND - Ground plane

Header 2 properties

Name Unknown
Reference None
Type Pin header (2.54mm, 10x2, male)

Header 2 pins

# Name Function Connected to
1 C15 - PC15
2 C14 - PC14
3 A15 - PA15
4 A14 - PA14
5 A13 - PA13
6 A12 - PA12
7 A11 - PA11
8 A10 - PA10
9 A9 - PA9
10 A8 - PA8
11 A7 - PA7
12 A6 - PA6
13 A5 - PA5
14 A4 - PA4
15 A3 - PA3
16 A2 - PA2
17 A1 - PA1
18 A0 - PA0
19 3.3 - +3.3V rail
20 GND - Ground plane

USB connector properties

Name Micro
Reference None
Type USB Micro

USB connector pins

# Name Function Connected to
1 - VCC +5V rail
2 - D- PA11 via 18Ω resistor
3 - D+ PA12 via 18Ω resistor
4 - ID N.C.
5 - GND Ground plane

SWD header properties

Name SWD
Reference None
Type pin header (2.54mm, 4x1, male)
  • Note: This is one header together with the UART1 header.

SWD header pins

# Name Function Connected to
1 GND GND Ground plane
2 CLK SWCLK PA14
3 DIO SWDIO PA13
4 3V3 VCC +3.3V rail

SD-card connector properties

Name TF_Card
Reference None
Type microSD

SD-card connector pins

# Name Function Connected to
1 - DAT2 N.C.
2 - CD/DAT3 PA4 pulled up by 10kΩ resistor (R14)
3 - CMD PA7 pulled up by 10kΩ resistor (R15)
4 - VDD +3.3V rail
5 - CLK PA5
6 - VSS Ground plane
7 - DAT0 PA6 pulled up by 10kΩ resistor (R16)
8 - DAT1 N.C.
9 - CD N.C.
10 - Body Ground plane

Serial header 1 properties

Name UART1
Reference None
Type pin header (2.54mm, 4x1, male)
  • Note: This is one header together with the SWD header.

Serial header 1 pins

# Name Function Connected to
1 GND - Ground plane
2 5V - +5V rail
3 RXD - PA10
4 TXD - PA9

Serial header 2 properties footprint

Name UART2
Reference None
Type pin header (2.54mm, 4x1, male)

Serial header 2 pins footprint

# Name Function Connected to
1 GND - Ground plane
2 5V - +5V rail
3 RXD - PA10
4 TXD - PA9

nRF24L01 module header properties

Name NRF24L01
Reference None
Type Pin header (2.54mm, 4x2, female)

nRF24L01 module header pins

# Name Function Connected to
1 - GND Ground plane
2 - VCC +3.3V rail
3 - CE PB0
4 - CSN PB2
5 - SCK PA5
6 - MOSI PA7
7 - MISO PA6
8 - IRQ PA15

ESP8266 module header properties

Name ESP8266
Reference None
Type Pin header (2.54mm, 4x2, female)

ESP8266 module header pins

# Name Function Connected to
1 - RXD PA2
2 - NC N.C.
3 - NC N.C.
4 - GND Ground plane
5 - TXD PA3
6 - VCC +3.3V rail
7 - VCC +3.3V rail
8 - VCC +3.3V rail

OLED header properties footprint

Name OLED/TFT
Reference None
Type pin header (2.54mm, 8x1, female)

OLED header pins footprint

# Name Function Connected to
1 - - PB11
2 - - PB9
3 - - PB7
4 - - PB5
5 - - PB3
6 - - PB1
7 - - +3.3V rail
8 - - Ground plane

Devices


Generic EEPROM properties footprint

Name 24C02
Reference Unknown
Manufacturer Unknown
Part Generic EEPROM
Marking Unknown
Datasheet Unavailable
Package SOP 8 pins
Description Generic I2C EEPROM

Generic EEPROM pins footprint

# Name Function Connected to
1 - A0 Ground plane
2 - A1 Ground plane
3 - A2 Ground plane
4 - GND Ground plane
5 - SDA PB6
6 - SCL PB4
7 - WP Ground plane
8 - VCC +3.3V rail

Generic FLASH properties

Name FLASH
Reference Unknown
Manufacturer Unknown
Part Generic FLASH
Marking Unknown
Datasheet Unavailable
Package SOIC 8 pins
Description Generic Dual/Quad SPI FLASH

Generic FLASH pins

# Name Function Connected to
1 - /CS PC13
2 - DO PA6
3 - /WP +3.3V rail
4 - GND Ground plane
5 - DI PA7
6 - CLK PA5
7 - /HOLD +3.3V rail
8 - VCC +3.3V rail