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 TIM2 in PWM mode using STM32CubeMX and produce a pulse-width modulated output — the technique behind LED dimming...
READ MOREIn Part 3 of our series, we will configure GATT Services and Characteristics on the STM32WB55 to establish two-way data communication with your smartphone. You’ll learn how to handle read, write, and notification operations to seamlessly transmit...
READ MOREThis guide walks through building a lightweight, framed UART protocol for emulating a sensor, covering the frame layout, parser design, and error handling needed to reliably transfer configuration data between a master MCU and an emulated sensor...
READ MOREAccurate timing is a fundamental requirement in most embedded applications, whether for blinking an LED, polling a sensor, or driving communication protocols. This guide shows how to turn TIM2 into a simple, reliable millisecond delay function...
READ MOREThe Serial Peripheral Interface (SPI) is one of the most common protocols for connecting microcontrollers to external devices such as sensors, memory chips, and displays, making it an essential tool in any embedded developer’s toolkit. In...
READ MOREIn Part 2 of our series, we will configure the STM32WB55 to initialize its Bluetooth Low Energy stack and start broadcasting advertising packets. You’ll then learn how to detect the device and establish an active connection directly from your...
READ MOREExpanding 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 and linking it to the DMA controller via LL drivers, the system...
READ MORETaking data acquisition to the ultimate level of efficiency, this guide explores using Direct Memory Access (DMA) to capture continuous single-channel ADC conversions on the STM32F4. By configuring the DMA controller alongside the LL drivers, the...
READ MOREA responsive menu system is the backbone of any interactive embedded device, but navigating it without screen tearing requires careful state management. In this guide, you will learn how to build a sleek, zero-flicker OLED menu using U8g2 that is...
READ MOREBuilding upon the basic single-conversion method, transitioning to continuous mode with interrupts unlocks a highly efficient, non-blocking approach to capturing analog data. This technique frees up the CPU to handle other critical tasks while...
READ MOREIn Part 1 of our BLE application development series for the STM32WB55! In this guide, we will explore the key features of the STM32WB55, introduce core Bluetooth Low Energy concepts, and configure a basic GPIO to blink an LED as our first step...
READ MOREThis guide demonstrates how to configure the STM32F4 Analog-to-Digital Converter (ADC) using the Low Layer (LL) drivers for a straightforward single-channel, single-conversion read. By bypassing the overhead of the Hardware Abstraction Layer...
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