Forewarned is forearmed.

⏱️ Utilize Timer1 Overflow Interrupt on Arduino UNO to toggle an LED at precise intervals, ensuring accurate timing with register-level control. An IoT-based smart security alarm system using ESP32, ...

Measuring the speed of a rotating object is a common requirement. Knowing the speed of table and ceiling fans, as well as kitchen appliances such as mixers and grinders, can often be useful. However, ...

I’m already loving this device, and I haven’t even touched one. Arduino announced it has collaborated with M5Stack to develop the new compact and powerful Nesso N1 IoT development kit. This system ...

Paul and David Bradt’s Ardiono Projects offers multiple ways to use Arduino and Raspberry Pi microcontrollers for your model railroading projects. Buy the book here. Code for Button/Blink Test (SN095) ...

Photoelectric sensors detect objects and surface changes using variations in optical properties. Each sensor includes a light emitter and a receiver, with most relying on infrared light. In optical ...

The Adafruit Sparkle Motion is an ESP32-based LED controller board designed to drive addressable LEDs, including WS2812B, APA102, SK6812, LPD8806, UCS2904, and SM16704. It supports both WLED and ...

In recent years, integrating smart home devices into your living space has never been simpler. They have become easier to set up with user-friendly apps and step-by-step guides, and some are ...

Obstacle sensor, based on TCRT5000, uses infrared diode and photo-receiver to detect obstacle in front of it - emitted light just reflects back to the sensor. Onboard, you'll find voltage comparator, ...

I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller and a piece ...