Show and Tell, Share a project you previously created or you are building right now
Show & Tell, share a project you previously created or you are building right now

Have you ever built an exciting electronics project but have nowhere to show it off?

Share it on the element14 Community in our Show & Tell competition!

It could be something you built previously in your spare time, at work, as part of your university studies, or something you are working on right now.

All you have to do to be in with a chance of winning is write a blog and include all the photos, videos, diagrams, code, etc. that you can.

Learn More About The Arduino UNO Q

How To Win

To be in the running to win the prize, submit your project here as a blog:

Submit Your Project Here

When writing your project entry, you will be expected to include:

  • Your plan for your project, how it works and what it does, and what inspired you to build it.
  • Document step-by-step how you built your project.
  • Any interesting problems you ran into and how you solved them or worked around them.
  • If your project is a work in progress, document what stage your project is at right now and what is working/not working, and what your remaining challenges are.

Click here for a full guide on how to write a winning project blog. Below are some recent projects submitted by community members to give you an idea of potential layouts for project blogs and how you can incorporate images etc. into your blog:

Important Dates

Competition open for submissions 24th June - 30th August 2026
Deadline for submissions 23:59 UK time 30th August 2026
Winners announced 4th September 2026
Prizes shipped (estimated) 11th September 2026

If you have any problems with the element14 Community or engaging with the competition, please "Report a Problem" in  Feedback and Support.

News from Staff
Show and Tell Competition Projects

  • The Wireless Electronic Fridge Tag

    fyaocn
    Overview The Wireless Electronic Fridge TAG  The idea is simple and a little playful: you type a message on your phone, and that message shows up on a small display stuck to the fridge with a magnet — no wires, no cloud account required t...
  • Peephole IP- camera for home.

    Peephole IP- camera for home.

    embeddedguy
    Table of Contents DFRobot ESP32s3 AI camera The Goal Software Requirements Implementing FTP server on ESP32 Light intensity sensor support Camera Sensor support SD-Card Support MIC interface Digital Speaker interface Working Demo Enclosure design ...
  • Lawnmower - Antweight Battlebot (454g)

    Lawnmower - Antweight Battlebot (454g)

    Ralb09
    Antweight Battlebot (454 grams) with a machined titanium spinner.  Currently in the process of creating my High School's battlebot team with my friends! We are in the process of getting the titanium spinner machined and shipped to us, and or...
  • Audio transmission using LED light

    Audio transmission using LED light

    strb
    This project dates back to the last year of my bachelor degree. The professor for the "Electronic laboratory" course decided to give a twist to final examination allowing two options: standard examination or a project contest. Rules were si...
  • Ink Bot the Vertical Pen Plotter

    Ink Bot the Vertical Pen Plotter

    nimion_art
    Check out this drawing machine that I built and programmed from scratch using an Arduino Uno, stepper motors, and more!
  • Electronic vintage weather station

    Electronic vintage weather station

    Spain_mtg
    Electronic vintage weather station    In the past, some houses had small weather stations that showed the data of humidity, atmospheric pressure and temperature that were in that area by means of spheres, these spheres were framed in tables...
  • Building the Brains of a Home Beer Canning Machine

    Building the Brains of a Home Beer Canning Machine

    Drodbar
    From a spare Arduino and a breadboard to a custom PCB controlling valves, sensors and the full canning cycle Project at a glance • Controller: Arduino Nano • Outputs: four Airtac 4V210-08 electro-pneumatic valves • Sensor: Baumer...
  • Q-Aid enclosure 3D render designed in Autodesk Fusion, showing camera cutout, ultrasonic sensor holes, OLED window and touch zone

    Q-Aid: The Clip-On AI Badge That Runs Fully Offline

    ElleX
    Q-Aid is a clip-on wearable AI companion badge built entirely around the Arduino UNO Q's dual-brain architecture — the Qualcomm QRB2210 running local AI on Linux, paired with the STM32U585 MCU for real-time sensor control. Everything runs f...
  • Eco Classroom

    Eco Classroom

    redcharly
    Eco Classroom Table of Contents Eco Classroom Introduction UNIHIKER K10 Programming K10 The project Introduction Hi, I'm Carlo, and I'd like to share my experience with a very interesting board, the UNIHIKER K10. I'm a middle school teacher an...
  • pcb_round_watch

    LumiDial: a 72-LED Analog Wristwatch Powered by ATmega328

    taifur
    Introduction LumiDial is a custom-built wristwatch that blends classic analog style with modern LED technology. Instead of using physical hands, it uses 72 SMD LEDs arranged in a circular layout — 60 LEDs to indicate seconds and minutes, a...
  • Diagno V1 in action

    Diagno — The Four-Probe Handheld That Measures, Generates, and Sniffs Almost Anything

    thegrgelectric
    I would like to proudly present my battery-powered, RP2040-based handheld with a color screen and four reconfigurable test probes that measures voltage, resistance, frequency, and logic signals — and can just as easily generate PWM, drive ...
  • ESP32+NRF24 based walkie talkie

    ESP32+NRF24 based walkie talkie

    Nanucek
    ESP32 nRF24 Walkie-Talkie (Main Description) This project is a wireless communication terminal built on the ESP32 microcontroller, utilizing the nRF24L01 2.4GHz transceiver module for data transmission. The system features a 0.96" I2C OLED display to...

  • Journey of an Autonomous hunter robot and a Stygian Witch Eye

    robogary
    For interesting STEM demonstrations at schools, I had built a small hobby robot called the Orange Giraffe Hunter. Its job was to look around , lock in, and chase down a plastic Orange Giraffe     The prototype build used an Arduino Uno...
  • Analog Soul, Digital Heart: A World-War II Emergency Phone

    Analog Soul, Digital Heart: A World-War II Emergency Phone

    saturn_rings
    The inspiration Let's be honest, our grandparents hate smartphones. They find it hard to navigate through menus, forget where the emergency button is, and often want nothing to do with modern technology. On top of that, the world is full of electroni...

  • Compact RPi CM4 based Home Assistant System

    ralphjy
    Introduction I'm currently waiting to receive the hardware for the Raspberry Pi Compute Module 5 Development Kit RoadTest.  My motivation for applying for that roadtest is to replace a Home Assistant (HAOS) home automation system that I have...
  • PLC with PSoC

    PLC with PSoC

    Em0ke
    This PLC board is designed using a Cypress System-on-Chip (SoC) microcontroller for industrial automation and embedded control applications. The Cypress SoC integrates a microcontroller with programmable analog and digital peripherals on a single chi...
  • A.E.G.I.S. Advanced Engineering Gear for Intelligent Support. A Robotic Arm!

    A.E.G.I.S. Advanced Engineering Gear for Intelligent Support. A Robotic Arm!

    AwesomeApple1
    AEGIS is a fully custom-designed robotic arm that I designed, 3D printed, assembled, and programmed from the ground up over the past month. My inspiration came from JARVIS in Iron Man—the idea of building an intelligent robotic assistant that c...
  • Green pixelated camera output from a Raspberry Pi

    Station 202: a camera that throws the image away

    apn201
    A Raspberry Pi 3 and a broken camera become a generative monitor that renders my desk as green pixels - and never lets a real image leave the device.
  • Too-slow-to-load-img:(

    CuteBit Robot

    arjunkulkarni
    The Expressive AI Desktop Robot CuteBit is an open-source, voice-controlled AI robot that combines a powerful Local LLM "Brain" (running on a host PC) with an expressive ESP32 "Body". Unlike standard voice assistants, CuteBit has ...
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About Project14 Competitions

This is your opportunity to build an electronics project using just what you have lying around, what you can upcycle or purchase, and be in with a chance of winning a prize!
Project14 competitions are lots of fun, no pressure, and a chance to share with like-minded engineers and makers across the world.