STM32 CMSIS-RTOS (Part 2): Multiple Tasks, Priorities & Preemption
In this tutorial, we create four FreeRTOS tasks with different priorities on the STM32 Nucleo-L496ZG,…
Microcontroller Tutorials with Code from Scratch
Controllerstech.com is dedicated to teaching STM32, ESP32, and embedded systems through practical, hands-on tutorials. All examples are built from scratch using datasheets and reference manuals, and every project is tested on real hardware to ensure accuracy and reliability. The goal is to help you gain complete control, deep understanding, and the confidence to build real-world embedded applications.
STM32 LATEST TUTORIALS
STM32 CMSIS-RTOS (Part 1): FreeRTOS Setup, Tasks & Scheduler Explained
In this tutorial, we build a complete STM32 FreeRTOS project using CubeMX and CubeIDE. You’ll…
STM32 I2C Using LL Drivers (Part 3): Read Sensor Data from MPU6050
Learn how to perform I2C read operations on STM32 using Low-Layer (LL) drivers. This tutorial…
STM32 I2C Using LL Drivers (Part 2): Write Data to EEPROM and I/O Expander
Learn how to perform I2C write operations on STM32 using Low-Layer (LL) drivers. This tutorial…
STM32 OTA Bootloader (PART 7): Wireless Firmware Update Using ESP8266 WiFi Module
Build a fully wireless OTA update system for STM32 using ESP8266 WiFi and external flash…
STM32 I2C using LL Drivers (Part 1): I2C Scanner to Detect I2C Devices with STM32CubeMX
Learn how to build an I2C scanner using STM32 Low-Layer (LL) drivers to detect and…
STM32 ADC Using LL Drivers (Part 2): Multiple Channels using DMA Mode
In this tutorial, we use STM32 ADC with DMA to read multiple channels efficiently using…
STM32 OTA Bootloader PART 6: Flash OTA Update from TCP Server Using Ethernet
A step-by-step guide to OTA firmware updates on STM32 using W5500 Ethernet and TCP server,…
ESP32 LATEST TUTORIALS
ESP32 UART (Part 3): Interrupt Mode – Receive Large Data Using UART Events (ESP-IDF)
In this tutorial, we use UART interrupt mode on the ESP32 with ESP-IDF to receive…
FreeRTOS on ESP32 (PART 7): Real-Time Multitasking – ADC Sensor, UART/Wi-Fi & LED Control
Learn how to build a complete real-time multitasking project on ESP32 using FreeRTOS. This guide…
FreeRTOS on ESP32 (PART 6): How to Suspend, Resume, and Delete Tasks in ESP-IDF
A practical ESP32 FreeRTOS guide covering how to suspend, resume, delete, and manage tasks efficiently….
FreeRTOS on ESP32 (PART 5): Software Timers and Task Notifications Explained
Learn how to use FreeRTOS Software Timers and Task Notifications on ESP32 with ESP-IDF. Understand…
FreeRTOS on ESP32 (PART 4): Inter-Task Communication Explained | Queues, Semaphores, and Event Groups
In this fourth part of the ESP32 FreeRTOS series, we’ll learn how tasks communicate and…
FreeRTOS on ESP32 (PART 3): Task Priority and Stack Management Explained
In this tutorial, we explore task priorities and stack management. How priority affects scheduling, how…
FreeRTOS on ESP32 (PART 2): Understanding the Scheduler and Task Management
Understand how the ESP32 FreeRTOS scheduler manages tasks efficiently across dual cores. Learn about time…
FreeRTOS on ESP32 (PART 1): Introduction to FreeRTOS and Task Management
Get started with FreeRTOS on ESP32 using ESP-IDF. Learn how tasks, priorities, and the scheduler…
ARDUINO LATEST TUTORIALS
FreeRTOS Tutorial on Arduino (Part 7): Event Groups | Multi-Event Synchronization
This tutorial explains how to use FreeRTOS Event Groups on Arduino for multi-event synchronization. Learn…
FreeRTOS on Arduino (Part 6): Using Interrupts in FreeRTOS
This tutorial shows how to connect a hardware button interrupt to a FreeRTOS task on…
FreeRTOS on Arduino (Part 5): Semaphores and Mutex Explained with Practical Examples
A practical guide to using semaphores and mutexes in FreeRTOS on Arduino, with clear explanations…
FreeRTOS on Arduino (Part 4): Inter Task Communication with Queues
This tutorial explains how FreeRTOS queues work on Arduino and why they are essential for…
FreeRTOS on Arduino (Part 3): vTaskDelay vs vTaskDelayUntil and Software Timers
Explore Arduino FreeRTOS Part 3: create stable periodic tasks, print Serial timestamps, and implement a…
FreeRTOS on Arduino (Part 2): Task Scheduling on Arduino – Tasks, Priorities & Time Slicing
Arduino FreeRTOS Task Scheduling: Tasks, Priorities, and Scheduler Internals FreeRTOS makes Arduino multitasking possible. But…
FreeRTOS on Arduino (Part 1): Simple Multitasking
Start learning FreeRTOS on Arduino with this simple beginner’s guide. Understand RTOS basics, install the…
Arduino ILI9341 (PART 2): Build an MP3 Music Player with DFPlayer Mini
Build a smooth, touchscreen-based Arduino MP3 player with DFPlayer Mini, featuring a responsive UI, playlist…
TIVA C (TM4C123G) LATEST TUTORIALS
TM4C123G ADC Multiple Channels Tutorial: How to read 4 Analog Inputs
A complete guide to configuring the TM4C123G ADC using TivaWare—covering clock setup, sequencer configuration, reading…
How to Use ADC on TM4C123G LaunchPad: Complete Step-By-Step Guide
Learn how to read analog signals using the ADC module on the TM4C123G LaunchPad. This…
How to Interface SSD1306 0.96” OLED Display with TM4C123G Tiva C: Text, Shapes, and Animations
Learn how to interface the SSD1306 0.96″ OLED with the TM4C123G microcontroller. This beginner-friendly guide…
How to Interface LCD1602 with TM4C123G Tiva C Using I2C (Full Guide with Code)
A complete guide to interfacing the LCD1602 over I2C with the TM4C123G Tiva C. This…
SPI Communication in TM4C123G: A Simple Guide
A simple guide to SPI on the TM4C123G Tiva C LaunchPad covering SSI modules, pin…
I2C in TM4C123G Tiva C – How to Use I2C Peripheral with TivaWare
Learn how to set up and use the I2C peripheral on the TM4C123G Tiva C…
TM4C123G UART Tutorial (PART 2): Use Interrupt to Receive Data and Control LEDs
Learn how to configure and use UART interrupts on the TM4C123G microcontroller to receive and…
TM4C123G UART Tutorial (PART 1) – How to Use UART and Virtual COM Port in Tiva C
Learn how to use UART in TM4C123G Tiva C for serial communication. This tutorial explains…
AVR LATEST TUTORIALS
AVR #8. I2C Master PART 4 || Read data from Slave
This tutorial covers how to use the AVR MCU as the I2C Master and read…
AVR #7. I2C Master PART 3 || Interface LCD1602 via I2C
This tutorial covers how to use the AVR MCU as the I2C Master and send…
AVR #6. I2C Master PART 2 || comm. with Slave Device
This tutorial covers how to configure the AVR MCU as the I2C Master. We will…
AVR #5. I2C Master PART 1 || Configuration
This tutorial covers how to configure the AVR MCU as the I2C Master. We will…
AVR #4. How to receive data via UART || Interrupt
This tutorial covers how to configure UART in AVR MCU, and how to receive the…
AVR #3. How to Configure UART & Send Data
This tutorial covers how to configure UART in AVR MCU, and how to transmit a…
AVR #2. How to use input button || Ext. Interrupt
This tutorial covers how to read the Input button in AVR with and without using…
ATtiny817 Xplained mini || Clock setup || LED Blink
This tutorial covers how to setup the first project in the microchip atudio for the…