It is adapter originaly designed as adapter for 6-pin headers which are present on most STM32 Nucelo and Discovery boards for debugging external microcontrollers. This adapter turns this ST properietry 6-pin connector to standard 10-pin 1.27mm pitch ARM Cortex Debug connector described, for example, at ARM Developer webste. Note that some newer boards exposes this standard connector and this adapter is not needed. Some STM32 boards also do not have this connector anymore (small nucleos and some modern boards). It is also usable as breakout for this connector since it expose SWDIO, SWCLK, SWO, and RESET signal from this tiny connecter on more easily accessible pinsockets.

Schematics

3D View

BOM

Downloads

• Schematics (PDF)
• Gerbers (ZIP)
• Kicad project (ZIP)

Simple board for using Renesas RA2E1 48MHz ARM Cortex-M23 Ultra Low-Power Microcontroller on breadboard.

Features

• RA2E1 Ultra-Low Power Microcontroller in 32-pin HWQFN package
• Onboard labels optimized for R7FA2E1A72DNH part
• Pin compatible with any other 32-pin HWQFN part from RA2E1 family
• Powered using pin header by any voltage in range 1.6 - 5.5V
• 1×SPI, 1×I2C, 3×SCI (UART/SPI/I2C)
• 12-bit ADC
• Onboard SMT jumper for connecting external ADC VREF (jumper open) or connecting VCC to VREF (jumper closed)
• Onboard 32.768 kHz crystal oscilator
• Onboard standard 12-pin ARM Cortex debug connector

Schematics

BOM

Downloads

• Schematics (PDF)
• Gerbers (ZIP)
• Kicad project (ZIP)

Simple board for using MAX32660 96MHz ARM Cortex-M4F Ultra Low-Power Microcontroller on breadboard. Board contains USB connector and LDO for powering. Board is deisgned with Ultra low-Iq TPS7A02 LDO but work with many other in SOT-23-6 package. You can select any voltage you want. Valid range is 1.8 - 3.6V. Alternatively you can power it using GPIO. Board also contains jumper for measuring power consumption when powered using onboard LDO. At last, board contains standard 10-pin ARM Cortex JTAG connector.

WARNING: Board is designed for use with 20-pin TQFN package (part number MAX32660GTP+ or MAX32660GTP+T). It do not work with chips in 16-pin WLP and 24-pin TQFN packages.

Schematics

BOM

Downloads

• Schematics (PDF)
• Gerbers (ZIP)
• Kicad project (ZIP)

Simple board for using MAX31875 I2C Temperature Sensor on breadboard.

WARNING: MAX31875 is avalaible only in WLP4 package. WLP4 package size is less than 1mm × 1mm. It is extremly hard to solder 4-pin chip sized less than milimeter! If you just want temperature sensor, then I recommend using something easier to solder.

Schematics

BOM

Downloads

• Schematics (PDF)
• Gerbers (ZIP)
• Kicad project (ZIP)
• C Library for MCUs (Github)