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 TCP/IP with Mongoose (Part 1): Complete Setup Guide
STM32 CMSIS-RTOS (Part 2): Multiple Tasks, Priorities & Preemption
STM32 CMSIS-RTOS (Part 1): FreeRTOS Setup, Tasks & Scheduler Explained
STM32 I2C Using LL Drivers (Part 3): Read Sensor Data from MPU6050
STM32 I2C Using LL Drivers (Part 2): Write Data to EEPROM and I/O Expander
STM32 OTA Bootloader (PART 7): Wireless Firmware Update Using ESP8266 WiFi Module
STM32 I2C using LL Drivers (Part 1): I2C Scanner to Detect I2C Devices with STM32CubeMX
STM32 ADC Using LL Drivers (Part 2): Multiple Channels using DMA Mode
STM32 OTA Bootloader PART 6: Flash OTA Update from TCP Server Using Ethernet
ESP32 LATEST TUTORIALS
ESP32 UART (Part 3): Interrupt Mode – Receive Large Data Using UART Events (ESP-IDF)
FreeRTOS on ESP32 (PART 7): Real-Time Multitasking – ADC Sensor, UART/Wi-Fi & LED Control
FreeRTOS on ESP32 (PART 6): How to Suspend, Resume, and Delete Tasks in ESP-IDF
FreeRTOS on ESP32 (PART 5): Software Timers and Task Notifications Explained
FreeRTOS on ESP32 (PART 4): Inter-Task Communication Explained | Queues, Semaphores, and Event Groups
FreeRTOS on ESP32 (PART 3): Task Priority and Stack Management Explained
FreeRTOS on ESP32 (PART 2): Understanding the Scheduler and Task Management
FreeRTOS on ESP32 (PART 1): Introduction to FreeRTOS and Task Management
ESP32 MQTT Client: Publish and Subscribe to Topics Using Espressif IDE
ESP32 WiFi Station Mode with ThingSpeak Data Logging Using Espressif IDE
ARDUINO LATEST TUTORIALS
FreeRTOS Tutorial on Arduino (Part 7): Event Groups | Multi-Event Synchronization
FreeRTOS on Arduino (Part 6): Using Interrupts in FreeRTOS
FreeRTOS on Arduino (Part 5): Semaphores and Mutex Explained with Practical Examples
FreeRTOS on Arduino (Part 4): Inter Task Communication with Queues
FreeRTOS on Arduino (Part 3): vTaskDelay vs vTaskDelayUntil and Software Timers
FreeRTOS on Arduino (Part 2): Task Scheduling on Arduino – Tasks, Priorities & Time Slicing
FreeRTOS on Arduino (Part 1): Simple Multitasking
Arduino ILI9341 (PART 2): Build an MP3 Music Player with DFPlayer Mini
Complete ILI9341 Arduino Tutorial with Touch Screen (XPT2046): Full Guide with Codes
Arduino WS2812 LED Tutorial: Complete Guide with Examples, Animations, and Full Codes
TIVA C (TM4C123G) LATEST TUTORIALS
TM4C123G ADC Multiple Channels Tutorial: How to read 4 Analog Inputs
How to Use ADC on TM4C123G LaunchPad: Complete Step-By-Step Guide
How to Interface SSD1306 0.96” OLED Display with TM4C123G Tiva C: Text, Shapes, and Animations
How to Interface LCD1602 with TM4C123G Tiva C Using I2C (Full Guide with Code)
SPI Communication in TM4C123G: A Simple Guide
I2C in TM4C123G Tiva C – How to Use I2C Peripheral with TivaWare
TM4C123G UART Tutorial (PART 2): Use Interrupt to Receive Data and Control LEDs
TM4C123G UART Tutorial (PART 1) – How to Use UART and Virtual COM Port in Tiva C
TM4C123 GPIO External Interrupts (Using TivaWare in Code Composer Studio)
TM4C123 GPIO Tutorial – Digital Input and Output using Tiva C LaunchPad
AVR LATEST TUTORIALS
AVR #8. I2C Master PART 4 || Read data from Slave
AVR #7. I2C Master PART 3 || Interface LCD1602 via I2C
AVR #6. I2C Master PART 2 || comm. with Slave Device
AVR #5. I2C Master PART 1 || Configuration
AVR #4. How to receive data via UART || Interrupt
AVR #3. How to Configure UART & Send Data
AVR #2. How to use input button || Ext. Interrupt
