Firmware, hardware and the details that make them work. Tutorials from the EmbeddedExpertIO engineering community.
In this new series guide, we shall emulate the UART hardware using a clever combination of timers and DMA to achieve effortless, CPU-independent serial communication. Before a single byte can…
In Part 1, we used a timer to measure time; now we’ll put it to work generating signals instead. In this part, we configure…
In Part 3 of our series, we will configure GATT Services and Characteristics on the STM32WB55 to establish two-way data communication with your smartphone.…
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This guide walks through building a lightweight, framed UART protocol for emulating a sensor, covering the frame layout, parser design, and error handling needed…
Accurate timing is a fundamental requirement in most embedded applications, whether for blinking an LED, polling a sensor, or driving communication protocols. This guide…
The Serial Peripheral Interface (SPI) is one of the most common protocols for connecting microcontrollers to external devices such as sensors, memory chips, and…
In Part 2 of our series, we will configure the STM32WB55 to initialize its Bluetooth Low Energy stack and start broadcasting advertising packets. You’ll…
Expanding upon our single-channel DMA foundation, this guide scales the STM32F4’s ADC to simultaneously sample multiple analog channels. By enabling the ADC’s scan mode…
Taking data acquisition to the ultimate level of efficiency, this guide explores using Direct Memory Access (DMA) to capture continuous single-channel ADC conversions on…
A responsive menu system is the backbone of any interactive embedded device, but navigating it without screen tearing requires careful state management. In this…
