**Experiments, Prototypes & Notes with the micro:bit v2.21** This repository contains my projects, experiments, and notes using the **micro:bit v2.21**, built on the **nrf52833** microcontroller. I...
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#embedded
21 posts
🟠 **Synchronization** is a fundamental concept that ensures that the processor, peripherals, timers, and interrupts operate in a consistent and accurate manner based on a common clock source. <!-- mo...
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🟠 **Clock is the basis for timers and interrupts** The clock system sets the pace of all digital components of the microcontroller. Timers use its signals to generate interrupts and perform tasks with...
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🟠 Timers are hardware modules of the microcontroller for actions with time counting and event generation **without the participation of the main code**. The accuracy of the timer and its maximum ti...
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🟠 How to handle pulse width modulation --- **PWM (pulse width modulation)** is used to control the power supplied to the load. 🔸 **Classic method** - reducing the voltage through a rh...
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🟠 A must-have template for creating a Rust project for microcontrollers. --- table { width: 100%; border-collapse: collapse; margin-bottom: 20px; } th, td {...
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Microcontroller peripherals are functional blocks integrated into the chip that enable it to interact with the outside world or carry out specific tasks — often without involving the processor core....
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A `processor register` is a quickly accessible location available to a computer's processor. Registers usually consist of a small amount of fast storage, although some registers have specific hardware...
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**MMIO (Memory-Mapped I/O)** is a way for the central processing unit (CPU) to interact with peripheral hardware devices (e.g. `UART`, `timers`, `GPIO`, `SPI`, etc.) by "sticking" the registers of the...
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🟠 Data Transmission Between CPU and Peripheral Devices via I/O Methods table { width: 100%; border-collapse: collapse; margin-bottom: 20px; } th, td {...
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Classic software development is always inside the cycle of write - run - check - fix. In classic systems, debugging is simplified by built-in logs, breakpoints and step-by-step code execution direct...
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A technical introduction to the **UART** - low-speed two-wire asynchronous multi-duplex serial protocol. **UART** The earliest serial protocol. Still commonly used in modern electronics. {{ img(src...
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A technical introduction to the **SPI** - low-speed four-wire master-slave full-duplex serial protocol. **SPI** is widely used as a faster alternative to UART/I2C for transferring data between an in...
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A technical introduction to the **I2C** - low-speed two-wire master-slave serial protocol. **I2C** is widely used for short-distance data transmission over a data bus (`SDA`) with a clock synchroniz...
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Digital systems are based on the concept of **bits**, in addition to using bits they often have to transfer them back and forth usually between two components (MCU and Sensor, LCD etc). 🟠 All the di...
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**Review of the ecosystem of crates used for programming microcontrollers in Rust** In general, developing programs for **MCU** is aimed at obtaining some information from the surrounding world, perf...
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**Experiments, Prototypes & Notes with the Raspberry Pi Pico W** This repository contains my projects, experiments, and notes using the **Raspberry Pi Pico W**, built on the **RP2040** microcontrolle...
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In this article, I will explore: * How Rust ensures memory safety in no_std environments * What memory allocation strategies are viable on modern embedded targets * Which patterns help minimize memor...
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🟠 What is a general purpose input output (GPIO) of the MCU --- ### GPIO GPIO stands for general purpose input/output. It is a type of pin found on an integrated circuit that does not...
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This article is the second part of my exploration into the stages and optimizations of [Rust compilation]((https://maltsev-dev.github.io/rs-to-bin/)), focusing now on embedded systems development. E...
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In embedded Rust development, minimizing the size of the compiled firmware is essential due to the limited memory resources of microcontrollers. This article explores how to analyze binary sizes usi...
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