Programming

If you’re coming from Arduino Uno, the Raspberry Pi Pico can feel confusing at first—especially when it doesn’t immediately show a COM port. ✨🧐 Sometimes it appears as a USB drive or a UF2 board, and beginners assume something is broken.

Tap a button on your phone and watch an LED light up across the room. 🔴📶 This External LED via Wi-Fi turns an ESP32 into a tiny web server that hosts a page with ON/OFF buttons.

Press power, watch color happen. This beginner-friendly project drives a 64-pixel (8×8) NeoPixel matrix from an Arduino and paints it with a smooth, rotating rainbow. 🌈🚥

Boot. Play. Sing. As soon as you power on, the 3D DIY Soundbox. There is no phone, no pairing, and no app—just instant music with on-device lyrics. . 💾♪♫𝄞

Running out of pins? Imagine reading 16 sensors with only one Arduino input. That’s what the HP4067 does: ⚙️⚡

One step from a collision? Not today. 👨‍🦯😎 The 3D SMART CANE “sees” ahead and warns you before the tip hits anything. A quick beep and bright LEDs cue you to steer clear, so walking stays calm and confident.

Want a tiny MP3 Player prop that plays your own sound, like “The Fate of Ophelia”? 🎧 Need a simple build for a 3D-printed pumpkin or display? Wondering if a small speaker can work without a big amp, and if a single tap can start the audio?

Interested in a tiny build that moves the moment a raindrop lands? 🌧️🚗 This 3D Mini Rain Car Wiper…

Caught off-guard by sudden rain? 🌧️🏠 Build a Smart Laundry Bot that senses raindrops and automatically pulls your clothesline to safety—no more panic sprints to the backyard.

Missed a dose because time slipped by? 💊⏰ This Automatic 3D Medicine Dispenser remembers for you and guides you with light, sound, and a clear LCD. It turns daily dosing into a calm, repeatable routine.