Show and Tell!

USB LDO Inline Regulator and PSRR Measurement Circuits

theglassman — Wed, 02 Sep 2026 18:40:58 GMT

Hey everyone, this is my first post here so apologies if anything is awry with the formatting or layout :) Project and Background Recently I have been working on a remote, motorised SDR satellite base station project (coming soon!), using an Arduino ...(read more)

Ambient LED heat network thermostat user-focused prototype

TheRehn — Sun, 30 Aug 2026 22:59:00 GMT

Edited to get the videos and pictures to actually uploadcommunity.element14.com/.../video-1.mp4I made this prototype for an Open University Interaction Design course using a Circuit Playground Bluefruit, an all-in-one micro-controller devel...(read more)

OLED System Monitor for the UNO Q

veluv01 — Sun, 30 Aug 2026 22:50:47 GMT

Introduction For the last few weeks, I’ve had an Arduino UNO Q sitting on my desk, quietly running Hermes Agent. Most of the time it is not seen. No screen, no blinking lights that signify anything, just a small board doing work I can't see...(read more)

TARANGA – an improvised phonocardiography [PCG]

sunnyiut — Sun, 30 Aug 2026 22:32:38 GMT

It's about how our research group at the University of Dhaka turned an ordinary stethoscope chestpiece into a digital phonocardiograph at a low cost which gradually turned into a training tool for the biomedical engineers. Barely changed in the two c...(read more)

Tetris Game on Raspberry Pi Pico

zso2k — Sun, 30 Aug 2026 20:50:14 GMT

Introdution Transforming a Raspberry Pi Pico into an 8-bit Tetris arcade system is a fantastic hands-on project for learning MicroPython and embedded electronics. Using standard components like Raspberry Pi Pico, OLED display, an analog joystick and ...(read more)

How I built an R/C Aircraft from Scratch

mr_neutrino — Sun, 30 Aug 2026 20:12:10 GMT

Hi - This post is a brief overview of my R/C Aircraft Project. For some context, I'm currently 18 years old, and OBSESSED with planes - I'm about to start Aerospace Engineering as a first year student in 2027. This project was one of my ways ...(read more)

It will rumble, but not yet.

me_Cris — Sun, 30 Aug 2026 19:49:25 GMT

Hi makers!IntroductionAs I said in the title, my project is not yet ready to fully show itself, but it is not far off. You will see in the following pictures what components I want to use, and you will probably understand the project more easily.&nbs...(read more)

GAIA Wall: Turning a Raspberry Pi and Projector Into a Workshop Information Display

gam3t3ch — Sun, 30 Aug 2026 18:51:02 GMT

Current Setup for Gaia and Gaia wall. Raspberry Pi 5 16gb with a Pironman 5 max case with 500gb m.2 drive and 1tb external for storage and above it currently is the Raspberry Pi 4 4GB with 64GB micro SD card for the GAIA wall node. GAIA Wal...(read more)

Building a Low-Power Pomodoro Timer from a 555 Timer and Decade Counter

Shishir — Sun, 30 Aug 2026 18:31:20 GMT

Introduction The idea behind this project was simple: build a small, physical timer from basic electronic components that could provide a tangible indication that a certain amount of time had passed. Rather than relying on a phone or software applica...(read more)

How many permissions does it take to turn on a light? - Privacy Friendly IoT integration PoC

balajivan1995 — Sun, 30 Aug 2026 18:26:05 GMT

One of the most irritating things I face whenever I buy a smart device is installing manufacturer provided app to provision the device. Even if you have Alexa or Nest device, you are required to delegate the provisioning to 1st party app. The problem...(read more)

Warehouse Management System

Domendra_Sahu — Sun, 30 Aug 2026 18:02:45 GMT

INTRODUCTIONIn this project I have built A warehouse management System that can tell the Moisture and the Temperature of warehouse it would be very useful for the local warehouses that help the local farmer to prevent their grains from getting spoi...(read more)

Turning my old Lamp into Smart Lamp

reeva — Sun, 30 Aug 2026 17:35:10 GMT

This project outlines the process of upgrading a standard lamp enclosure into an automated, touch-controlled smart lamp using a microcontroller and basic sensors. Smart Features Intelligent Automation: The LDR continuously monitors ambient room li...(read more)

AI Voice Mood Lighting System

karthickiot — Sun, 30 Aug 2026 17:20:10 GMT

Hello everyone. My Project14 project is called “AI Voice Mood Lighting System.” The basic idea is simple: I speak a word → the system recognizes it → the word is mapped to an emotion or situation → the RDK ...(read more)

STM32F405-Based Custom Flight Controller PCB – Work in Progress

burakcakirer — Sun, 30 Aug 2026 15:26:35 GMT

Custom STM32F405 flight controller PCB designed in Altium Designer with IMU, barometer, EEPROM, USB-C, ESC/servo outputs and onboard power(read more)

Reverse Engineering a Phone LCD for MCUs

abtAmit — Sun, 30 Aug 2026 15:23:41 GMT

We all have old feature phones lying around in a drawer, destined for e-waste. But recently, I learned about these old devices: many of their LCDs actually use the exact same standard SPI protocols and driver ICs as the hobbyist TFT modules we buy on...(read more)