Embedded Systems Internship
Program microcontrollers and build embedded products: GPIO, ADC, PWM, interrupts, UART, I2C, SPI, ESP32 Wi-Fi, RTOS and PCB design.
What you'll work on
- Level 1: Foundations - What embedded systems are, Set up a toolchain, Digital input and output and more
- Level 2: Building real features - I2C sensor, SPI device, Register-level programming and more
- Level 3: Professional work and capstone - RTOS basics, STM32 or ARM Cortex-M, Bootloader and OTA and more
Full syllabus: all 30 graded tasks
These are the actual tasks the internship portal assigns for this domain. You submit each one with proof (a GitHub link or document) and a mentor reviews it.
Level 1: Foundations (12 tasks)
- What embedded systems are. Explain microcontroller vs microprocessor, and list 10 embedded products around you with their likely controller.
- Set up a toolchain. Install Arduino IDE or PlatformIO (or use the Wokwi simulator) and blink an LED. Commit to a repo named embedded-internship.
- Digital input and output. Read a push button and control an LED, with software debouncing.
- Analog input. Read a potentiometer or sensor with the ADC and print the value over serial.
- PWM. Fade an LED and control a servo with PWM, and explain duty cycle.
- C for embedded. Write examples of bitwise operations, volatile, fixed-width types and bit masks for registers.
- Reading a datasheet. Read a sensor datasheet and summarise voltage, pins, timing and communication protocol.
- Serial communication (UART). Send and receive commands over UART to switch an LED on and off.
- Timers and delays. Replace delay() with a non-blocking timer so two LEDs blink at different rates.
- Interrupts. Use an external interrupt to count button presses and explain why ISRs must be short.
- Power basics. Calculate current for an LED resistor and the battery life of a simple device.
- Circuit diagram. Draw a clean schematic of your circuit in KiCad, Fritzing or EasyEDA.
Level 2: Building real features (10 tasks)
- I2C sensor. Read a temperature/humidity or IMU sensor over I2C and explain addressing.
- SPI device. Drive an SPI display or SD card module and explain clock, MOSI, MISO and chip select.
- Register-level programming. Blink an LED by writing directly to GPIO registers instead of library calls.
- State machine. Implement a traffic light or vending machine controller as a finite state machine.
- ESP32 Wi-Fi. Connect an ESP32 to Wi-Fi and send sensor data to a web server or MQTT broker.
- Low-power mode. Use sleep modes to reduce power and measure or estimate the saving.
- Debugging. Debug a program with breakpoints (or serial logs and a logic analyser) and document one bug you found.
- Watchdog timer. Enable a watchdog and show it resetting a stuck program.
- Memory constraints. Measure flash and RAM use of your firmware and reduce it with at least two techniques.
- Unit testing firmware logic. Separate logic from hardware and unit-test it on your PC.
Level 3: Professional work and capstone (8 tasks)
- RTOS basics. Run two FreeRTOS tasks with a queue between them and explain priorities.
- STM32 or ARM Cortex-M. Port one of your projects to an STM32 or another Cortex-M board using its HAL or CMSIS.
- Bootloader and OTA. Explain bootloaders and implement over-the-air update on an ESP32.
- Communication protocol design. Design a simple packet format with a checksum between two boards and handle errors.
- PCB design. Design a small PCB for your project in KiCad with a proper ground plane and export Gerbers.
- Safety and reliability. List failure modes of your device and how firmware detects and handles each.
- Automotive or industrial protocol. Explain CAN or Modbus and demonstrate it with two nodes or a simulator.
- Capstone: embedded product. Build a complete embedded product (sensors, control, communication, low power) with schematic, firmware, tests and a demo video.
Real software work, not just training
Every Embedded Systems task is reviewed by our team and saved to your portfolio. Interns who pass the readiness check can take real work from Training Trains, W3AppDevelopers and DomainHostly projects on the Company Work board.
Frequently asked questions
Do I need experience to join the Embedded Systems internship?+
ECE and EEE students are a natural fit. Basic C helps. A simulator (Wokwi) can replace hardware for early tasks.
What will I do in the Embedded Systems internship?+
You complete 30 graded tasks in three levels: foundations, real features, and professional work. Each task is submitted with GitHub or document proof and reviewed. The final capstone is: Capstone: embedded product.
Do I get a certificate for the Embedded Systems internship?+
Yes. After your required tasks are approved, your attendance is above 75% and you pass the proctored final exam, you get a graded completion certificate that anyone can verify at trainingtrains.com/verify.
Can I do the Embedded Systems internship online?+
Yes. You can do it fully online from home, or offline at our Erode and Perundurai branches. Tasks, quizzes and mentor reviews are the same in both modes.
Available both online (work from home) and offline at our Erode and Perundurai branches - see the full internship program details for departments, duration, and the application process.