https://dernulleffekt.de/ 2026-05-01T00:41:52+00:00 https://dernulleffekt.de/ https://dernulleffekt.de/lib/tpl/writr/images/favicon.ico text/html 2020-10-26T17:04:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://dernulleffekt.de/doku.php?id=stm32duino:32stm32_main&rev=1603728276&do=diff STM32duino - Blue Pill F103C8 The STM32duino board is based on the ARM Cortex M3 core like the Arduino Duo. The version I use is the Blus Pill. On Hackaday is a good article about STM32 clones: STM32-Clones - the good the bad and the ugly. ---------- USB Fix Unfortunately the board comes with a 10k pullup resistor from D+ to 3.3V (in the schematic it's a 4.7k). That can cause problems on some PCs. Just take the R10 out and replace it with an 1.5k resistor.