Comprehensive tutorials on embedded systems — from microcontroller basics and GPIO to RTOS, power management, and security. All examples use C code targeting real hardware.
KEY TAKEAWAYS PIR sensors use the pyroelectric effect to detect warm body movement through a Fresnel lens that focuses infrared radiation onto a dual-element detector.… Read More »Motion and Proximity Sensors: Accelerometers, Gyroscopes, PIR, and Ultrasonic
KEY TAKEAWAYS MEMS piezoresistive sensors (BMP280, BME280) are the most popular for embedded projects — cheap, accurate, and easy to interface via I2C/SPI. Pressure sensors… Read More »Pressure Sensors for Embedded Systems: Types, Selection, and Interfacing
KEY TAKEAWAYS Part of the Complete Guide to Sensors for Embedded Systems series. Noise is the enemy of accurate sensor measurements. A perfectly calibrated sensor… Read More »Noise in Sensor Measurements: Sources and Solutions
KEY TAKEAWAYS Signal conditioning adapts raw sensor outputs (millivolts, resistance changes) to match the ADC input range of your microcontroller. Instrumentation amplifiers (INA126, AD620) provide… Read More »Signal Conditioning for Sensors: Amplification, Filtering, and Level Shifting
KEY TAKEAWAYS Part of the Complete Guide to RTOS for Embedded Systems series. Beyond queues (which transfer data), RTOS provides signaling mechanisms for coordinating between… Read More »RTOS Inter-Process Communication: Semaphores, Event Flags, and Notifications
Learn essential RTOS terminology including tasks, processes, release time, execution time, deadlines, periods, priority, context switching, jitter, and CPU utilization with clear definitions and examples.
Learn how ADC and DAC work in microcontrollers. Covers resolution, reference voltage, sampling, code examples for STM32, accuracy tips, and when to use PWM as… Read More »ADC and DAC in Microcontrollers: Converting Between Analog and Digital
Learn the Interface Segregation Principle with practical C examples. See how splitting bloated interfaces into small, focused ones prevents unnecessary dependencies.
Learn about power supply design for embedded systems including linear (LDO) and switching regulators, common voltage levels, battery types, decoupling capacitors, and practical design tips.
Learn how pipelining works in embedded processors, including pipeline stages, hazards (data, control, structural), and how pipeline depth affects performance, interrupt latency, and real-time behavior.
