E-paper Digital Id Badge

A reprogrammable smart conference / event badge on a Waveshare ESP32-S3 touch e-paper board: it shows your details, a scannable QR code.

Case Study: Building A Qr Code Attendance System On Arduino

A manufacturing facility in Pune approached us with a frustrating problem.

Turn Your Phone Into A Keyboard, Mouse, And Ssh Console

A pocket USB dongle combines standard HID input with a direct network link, allowing the KeyCmd mobile app to control computers, servers, kiosks, and SBCs over BLE or USB.

Case Study: Retrofitting Intelligence: Building A Smart Hvac

We recently wrapped up a project that felt like a throwback to classic embedded engineering. A client came to us with a common problem: they had a commercial office space with a legacy HVAC system. It was a workhorse—reliable, powerful—but dumb. It ran on a fixed schedule, ignored occupancy, and treated the entire 5,000 sq ft fl

Wifi Geolocation On The M5stack Core2

Will guide you to build a Wifi Triangulation based Geo Location on the M5Stack Core 2

Aurora Pendant - Rgb Pendant

The pendant features three individual switches, each controlling one color of the RGB LED. you can create 7 unique colors.

Wireless Distance Monitoring With Tf-luna Lidar And Xbee

A client came to us with a straightforward-sounding request: they needed to monitor the distance between a moving gantry crane and a storage rack in real time.

2048 On A Touchscreen

Play the classic 2048 number-merging game on a XIAO ESP32S3 round touch display — swipe to control tiles and merge your way to 2048.

Press & Eat: From Idea To Hardware In 5 Minutes

This visual guide shows how to build a STEM project for Wio Terminal in just 5 minutes with CodeCraft—from describing the idea and flashing online to testing and refining the result. A simple workflow for makers and STEM educators to try and bring their ideas to life

Building A Secure Online Prescription & Patient Management A

We recently wrapped up a project that combined two things we love: secure patient data handling and embedded systems.

Diy 3d Printed Led Roulette Wheel | Esp32 C3 Project

Today I am going to show you how I made a "Digital Roulette Wheel" by combining ESP32-C3 with the classic CD4017 CMOS decade counters

Build Your Own Wifi Scanner: Network Detective Tool

Ever wondered what WiFi networks are around you? Here's how to build one with your hands!

Solar-powered Rfid Water Vending Machine Using Esp32 For Off

We’ve built vending machines before, but this one had a twist — no grid connection, no cellular towers nearby, and a budget that ruled out industrial PLCs or proprietary controllers.

Iot Cold Storage Monitoring System Using Matter Protocol

We recently wrapped up a project for a cold storage facility that needed to monitor temperature and humidity across 12 separate chambers.

Gps Tracker Using Heltec Wifi Lora 32 V4 And Reyax Rys352a G

Build a browser-based GPS tracker using the Heltec WiFi LoRa 32 V4 and REYAX RYS352A Multi-GNSS module. This project visualizes real-time location and travelled routes on OpenStreetMap while hosting the tracking interface directly on the ESP32—no third-party cloud platform required.

Xiao Esp32 Wifi Piano: Stream Your Music From Any Browser

Build a web-controlled piano using the Seeed Studio Xiao ESP32, a MAX98357 I2S amplifier, and an SSD1306 OLED display.

Smart Security System Using Arduino, Rfid & Pir Sensor

In this project, I'll show how I built a Smart Security System using Arduino, RFID, and a PIR sensor.

Lightmap Monaco - Turn A Country Into Light

LightMap Monaco, a 179-cuboid PMMA light sculpture mapping the city in real time. Custom protocol, dual Meanwell PSUs, Pi 5 plus dual RP2040 control stack, ~800 addressable LEDs. Control panel coded for both computer and mobile device to control the map in real time. React to touch, weather, data. Event booked before it shipped.