a-damw / f405_pill

F405 Pill for running VESC based motor control from a Black/Blue Pill footprint

STM32F405 Pill

Features

• Full compatibility with the MP2 ESC.
• Standard blue/black pill header arrangement (2, 20 x 0.1in headers with 0.6in spacing).
• Kicad BOM contains links to jlcpcb for rapid PCBA.
• Four layer design with two inner uninterupted ground planes.
• USB-C connector.
• CAN pin header.

Specs

• Input: +3.52V to +5.25V
• Output: +3.3V @ 1000mA
• Dimensions: 53.8 x 19.4 mm
• Headers: 2, 20x0.1in pins @ 0.6in spacing
• Schematic
• 8 Mhz oscillator
• LM1117 LDO Voltage Regulator (datasheet)
• BSD License

Connections

ST-LINK
Name	Connected to
GND	Ground plane
SWCLK	PA14
SWDIO	PA13
3V3	+3.3V rail

CAN Bus
CAN1_TX	PB9
CAN1_RX	PB8

LEDs
Blue_LED	PC9
Green_LED	PC12
Red_LED	3.3v

VERSIONS:

• The F405_pill_V1.0 has been deprecated.

V1.1 changes

• Xtal caps from 18pF to 12pF
• Separate the two LEDs from the single resistor
• CAN spike protection
• RC between GND and pb12 to stop false trips
• PC12->PA15 to drive LED
• Increased functionality of several header pins
• Review this document for pin changes

REVISION REQUEST

• Jumper to disable CAN termination resistor on bottom side of board

CONTACT

Questions? Contact this person.