STM32 ADC Using LL Drivers (Part 1): Single Channel Blocking and Interrupt Mode
This tutorial teaches STM32 ADC single channel reading using LL drivers. We cover both blocking…
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 Custom Bootloader (Part 5): Implementing OTA Update
In Part 5 of the STM32 OTA Bootloader series, we build a full OTA engine…
STM32 UART using LL Drivers (Part 5): Receive Using DMA (Normal and Circular Mode)
Learn STM32 UART RX DMA with LL drivers, including Normal and Circular modes, DMA interrupts,…
STM32 Custom Bootloader (Part 4): Implementing OTA FLAG Mechanism
Learn how to implement an STM32 OTA bootloader flag mechanism, where the application sets a…
STM32 UART using LL Drivers (Part 4): Receive Data in Interrupt Mode
STM32 UART Receive Using Interrupt Mode with LL Drivers UART communication is one of the…
STM32 Custom Bootloader (Part 3): CRC Based Application Validation
This tutorial explains how to implement strict application validation in a custom STM32 bootloader using…
STM32 UART using LL Drivers (Part 3): Receive Data in Blocking Mode
In this tutorial, we learn how to receive UART data in blocking mode using STM32…
STM32 Custom Bootloader (Part 2): Application Validation Using Magic Number
Learn how to validate an STM32 application using a magic number in a custom bootloader….
ESP32 LATEST TUTORIALS
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…
ESP32 MQTT Client: Publish and Subscribe to Topics Using Espressif IDE
Learn how to implement MQTT on ESP32 using Espressif IDE. Subscribe to MQTT topics, publish…
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…