Arduino for STM32

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In the old forum it was mentioned several times. The mentioner was usually advised to try advanced searches with Google.

The workaround is to use an asterisk. Serial is too common but Serial* works just fine. Port is too common but Port* returns many matches.

For the Arduino Core STM32, Serial1 through Serial3 are undefined on the blue pill. Before the setup statement, insert: HardwareSerial Serial1(PA10, PA9); HardwareSerial Serial2(PA3, PA2); HardwareSerial Serial3(PB11, PB10); Reference: https://github.com/stm32duino/wiki/wiki/API#hardwareserial Then ...

Also need to know if you have installed a bootloader. If using the original "Roger" Arduino STM32 core and the generic bootloader, Serial = USB Serial Serial1 = UART1 Serial2 = UART2 Serial3 = UART3 Without the bootloader, Serial = UART1 Serial1 = UART2 Serial2 = UART3 See https://github.c...

There are tools (pngquant, optipng, and others) that can significantly reduce the size of png files. For instance this image: https://os.mbed.com/media/uploads/hudakz/stm32f103c8t6_pinout_voltage01.png that most of us have seen downloads at 679565 bytes. After running it through pngquant on the next...