This SToRM32 3.3 Board is compatible with OlliW SToRM32 3.3 Design and v3.3 Firmware. 

This board has no motor drivers; NT motor modules need thus be used.

Main differences to OlliW design:

• NT ant NT-X conntectors are 1.25mm Molex Picoblade. 4 pin and 7 pin respectively. This is due to better part sourcing availablility.
• Slightly different 2.54mm pinout.
• CH340 USB-Serial IC instead of Silabs IC.
• Added reverse polarity protection.
• Lower max input voltage (17V instead of 27V)

3D CAD Model Link [STEP file available]

Download CH340 Drivers (Windows 7, 8, 10 64bit)

Specifications:

• MCU: STM32F103RC at 72 MHz
• Motor drivers: none
• 2 NT ports and one NT-X port
• Board dimensions: 40 mm x 25 mm, 35 mm bolt to bolt, holes Ø3 mm
• Maximum BAT Input voltage: 6-17V
• +5V Nominal Output Voltage: 5.5V
• +5V Rail Max Output Current: 1A
• +3.3V Rail Max Output Current: 100mA
• USB Serial Interface: CH340 (Download Drivers)

Pinouts