The Walabot Touchpad is a sleek, low‑profile system that converts any flat surface into a responsive touchpad for your laptop. Imagine turning a book, a table, or a wall into a touch interface—no wires, no extra hardware. By pairing Walabot’s 3‑D microwave imaging with projector technology, you can

Introduction Experimental Products: SparkX delivers cutting‑edge technology quickly. While these items are rigorously tested, they are sold without formal guarantees and live technical support is unavailable. Do you need ultra‑precise distance, speed, motion, or gesture sensing that surpasses ultras

Gain real‑time insight into your pets’ behavior from anywhere. The Bark Back system uses the Internet of Things to record ambient noise levels in your home, upload the data to the cloud, and automatically play a custom audio file when the sound exceeds a user‑defined threshold. Built on a Raspberry 

Keep your neck and back healthy by monitoring your sitting posture in real time. The Posture Pal system pairs a Walabot distance sensor with a Raspberry Pi and a custom Android app to provide instant feedback and prevent pain from slouching. Hardware Components Walabot Raspberry Pi 3 Mo

Speathe: Breath‑Driven Communication for Paralyzed Users Speathe is an innovative, evolving communication platform that converts a user’s breathing patterns into audible speech and text. Designed for individuals who have lost speech due to paralysis, it offers a discreet, hands‑free method to convey

Build a Real‑Time Dashboard Gadget to Detect Card Skimmers at Gas Stations Credit‑card fraud remains a pervasive threat, especially at gas stations where magnetic‑stripe cards are vulnerable to simple, inexpensive skimmer devices. A skimmer sits over the card slot, records the data, and forwards it

High‑Precision Waveform Generation with a DAC‑Based Custom PCB In this guide we walk through firmware and hardware design that delivers fast, accurate arbitrary waveforms using a C8051F360 microcontroller and an Analog Devices TxDAC. Project Overview The board is centered around the C8051F360 MCU an

How accurate is your humidity sensor? Find out with this project.Humidity sensors are commonplace, relatively inexpensive, and come in many different varieties. Too often, we check the datasheet, use them with an interface, and (as long as the values “look reasonable”) we accept the results. In this

In our previous tutorial, we built a robot controllable via Amazon Alexa using MATRIX Voice on a Raspberry Pi. Now we’ll show you how to integrate Google Assistant with the same hardware. MATRIX Voice Google Assistant Demo Video (Video link pending) MATRIX Voice Google Assistant Overview Required Co

Turn your Raspberry Pi into a powerful remote‑control hub that lets you manage lights, fans, gates and more from any Android phone—anywhere, anytime. What You’ll Need Raspberry Pi (any recent model works) 3.3 V relay module (4‑channel boards are common and inexpensive) Android phone with RootSaid W

This compact detector offers a budget‑friendly solution for assessing ambient air quality. It targets the five key pollutants outlined by the EPA’s Air Quality Index—ozone, particulate matter, carbon monoxide, sulfur dioxide, and nitrous oxide—providing accurate readings for all except sulfur dioxid

Connecting analog sensors to a Raspberry Pi can be challenging because the Pi’s GPIO pins are only digital. An inexpensive solution is the MCP3008, an 8‑channel 10‑bit analog‑to‑digital converter that plugs straight into the Pi’s SPI bus and requires no extra components. In this guide we’ll walk thr

In this step‑by‑step guide, you’ll learn how to connect a Passive Infrared (PIR) motion sensor to a Raspberry Pi B+/Model 2 and program the GPIO pins to detect movement and trigger actions. Whether you’re building a home‑automation system, a security alert, or a simple robot, mastering GPIO is essen

After acquiring a Raspberry Pi and reviewing Eben Upton’s Raspberry Pi User Guide—especially the GPIO sections—I embarked on my first project: a home temperature monitoring system. This post details the initial iteration using a Raspberry Pi, an Adafruit MCP9808 breakout, an old Mac Mini, InfluxDB,

Integrating an IR remote with a Raspberry Pi is straightforward when you bypass LIRC and tap directly into the UART serial interface. The following guide walks through the entire process—from hardware setup to Python decoding—so you can reliably capture remote signals with minimal code. Why Skip LI

Ready to read analog signals with your Raspberry Pi? This guide walks you through wiring an MCP3008 ADC, enabling SPI, installing the required libraries, and running a basic Python script to fetch sensor data. Step 1: Wiring the MCP3008 Power (3.3 V) – VDD & VREF to Raspberry Pi 3.3 V pin (red)

In this comprehensive Raspberry Pi light‑sensor tutorial, I walk you through wiring a photoresistor to the GPIO pins and reading the data with a concise Python script. The goal is to give you a hands‑on understanding of the circuit, the code, and practical applications such as a light‑activated alar

  Hardware components: Microchip MCP3008 × 1 Raspberry Pi 3 Model B × 1 SparkFun Heart Rate Pulse Sensor × 1 Breadboard (generic) × 1 Jumper wires (generic) × 15 Software apps and online services: Microsoft Window

Vivek Nanda brings over 20 years of editorial leadership in the electronics sector, shaping contextual content and steering product‑development initiatives. In 2017, The MagPi Magazine—officially associated with the Raspberry Pi Foundation—announced that the single‑board computer had sold more than

Learn how to construct a high‑performance aeroponic garden powered by a Raspberry Pi. This guide covers everything from the hardware setup to the Python code that keeps your plants hydrated and healthy. Why Aeroponics? Aeroponics delivers nutrients as a fine mist directly to plant roots, eliminating