A development board for the STM32F042
Andy Brown designed a development board for the STM32F042 in the TSSOP20 package:
This project came about because I’m using the STM32F042F6P6 (32Kb flash, 6Kb SRAM) in another project where I’m creating a USB device and the first thing I did is try to obtain a development board for it. I was hopeful that ST would have created one of their ‘discovery’ boards but no, there was only a ‘nucleo’ board available and that had one of the QFP packages on it.
A development board for the STM32F042 – [Link]