uStm is a STM32 development board for STM32F042F6T6 MCU. Main features 48MHz Cortex-M0 MCU with 32kB flash and 6kB SRAM USB powered using LM1117-3.3V or AMS1117-3.3V LDO All pins exposed to standard 100 mils pin header (breadboard compatible) USB bootloader for flash programing Status LEDs on PA4 GPIO

Hardware

ToBe uStm v1 is produced by OSH Park. It uses spare PCB area from ToBe Pilot v2.0

• Process | 2-layer prototype PCB service, 2 oz copper
• FR4 substrate
• 0.8mm thickness
• ENIG (Immersion Gold) finish
• Dimensions | 1.25 x 0.5 inches (31.75 x 12.7 mm)
• Price (typ.) | ~0.91€ per PCB ($3.25 for a set of 3 boards)

Resources

• Schematics | pdf
• KiCad project files | zip
• PCB Layout | pdf
• Bill of Material | html
• Quick start guide | html

Revisions

Errata

Software

Test software

• Image | bin
• Sources release | tgz

Revisions

Pictures

Board

Board (top view)

PCB (top view)

PCB (bottom view)