The STM32F103 microcontroller can be programmed using a variety of programming languages, including:

// Deselect the LCD display HAL_GPIO_WritePin(GPIOA, LCD_CS_Pin, GPIO_PIN_SET);

Excellent for introductory embedded systems courses.

Known for clear, simple English that makes complex data sheets easy to digest. 🚩 Potential Downsides

The problem wasn’t her code. The problem was the dusty, dog-eared copy of “STM32F103 ARM Microcontroller and Embedded Systems” by Mazidi, Naimi, and Naimi sitting on her shelf. It was the bible for the STM32F103 “Blue Pill” microcontroller—the cheap, powerful heart of her device. But the book’s final three chapters, the ones on advanced timer synchronization and direct memory access (DMA) for streaming data, were missing. Torn out by a previous owner.