(add after the "# Adafruit Feather STM32F405 board" section).. That's all. So on the arduino IDE, on the boards menu pick the option "Generic STM32F4 series" and the board part number: suboption pick ...

I am getting send fails on a custom board using the STM32F405 code. I had everything working on a Bluepill STM32F103. It isn't the terminating resistors. If I am using an external HSC XTAL, do I have ...

A simple resistive DAC is all you need to drive a VGA display. Combining that with an on-chip DAC for audio, the STM32F405RGT6 looks like a good choice for a DIY game console. [Makapuf’s] Bit… ...