Popular Right Now

Latest projects See more

An ESP32-based Desk Clock and Pomodoro Timer

Desk Clock & Pomodoro Timer

A nixie tube display showing the number of minutes till the next bus arrives at my bus stop

Nixie Tube Next Bus Display

The long-in-the-tooth ESP8266 still has a lot of cycles to offer new projects for a small price.

Internet Weather via ESP8266

Connecting an industrial optical distance sensor to an ESP32 via I2C bus for mm-level robotics and positioning tasks.

I2C Laser Distance Measurement Interface Sensor

Supercon26 EPD badge with more colors. Your 3 favorite colors, just more of them.

Supertone26

4ch-In / 2ch-Out Audio Interface & Standalone Recorder and Playback with a lot of functions!

AmbM8

One command turns an abandoned Lenovo Smart Display 8 into a de-Googled Home Assistant dashboard with a local Assist voice satellite.

Lenovo Smart Display 8 → Home Assistant Kiosk & Vo

Open design of a 900–1700 nm NIR spectrometer around a single InGaAs photodiode, ray-traced and built from catalogue optics.

JASPER: NIR SPECTROMETER

ESP32-S3 runs ZKE EBC battery tests for days without a PC, logs to SD and serves a web UI. Build your own from modules.

EBCTester V2 – Brain for ZKE Battery Tester

Help develop an open-source inline coffee TDS sensor with a prism, LED and camera, then test it with crema, bubbles and particles.

Open Coffee TDS – Inline Refractometer

Linux support for the Thermaltake LCD Panel Kit

TTLCD

Open-source Pi gateway linking ATAK phones on a mesh radio network to a TAK server: chat, files, maps and push-to-talk voice in one box.

Off-Grid Communications Suite

A opensource Solid-State wheel replacement for the Whill Model F!

RTW (Reinventing The Whill) Wheel

An autonomous and highly modular embedded development platform powered by a RP2040 microcontroller.

uCompute RP2040

A cloud-free smart power switch for my homelab

Remote power switch for homelab

CubeMastery is a free site teaching how to solve a Rubik's Cube in 7 simple steps, with OLL and PLL guides and free practice tools.

CubeMastery

A microphone mystery led down a rabbit hole of hardware hacking, embedded Linux, firmware exploits and, inevitably, DOOM

But can it run DOOM?

An open, wired and local building-automation platform, starting with REL8: an 8-channel DIN-rail relay module.

Wired Local – Open, Local Home Automation

A low-cost SDR receiver. Powered by CH32V467, targeting 1MHz-4GHz, 10-bit ADC, and up to 20MHz bandwidth via USB HS.

SDR32 - A Modern RTL-SDR Alternative

A hand-pull for serving beer in the style of traditional English cask ale

Bodgy Beer Engine

Trending projects See more

Follow for the 'Hacklet' and latest news about hackaday.io

Hackaday.io Project

Extremely robust boat drone to travel the Ocean from Portugal to Antactica and come back only with solar power.

Flappy

ESP32 E-Ink watch that can run solely on solar power

LightInk

Open-Source Web-GUI Embedded Multitool based on Raspberry Pi Pico

Pico.Lab - Web-GUI Embedded Multitool

The SMD Soldering Challenge board for Supercon X

Supercon X - SMD Soldering Challenge

RTL-SDR sticks need some love, This self-contained web page receiver does just that

OFFgrid-SDR

Open-source, low-cost 10.5 GHz phased array radar with PLFM modulation; available in 3km and 20km range

Open Source PLFM RADAR. Up to 20Km Range

OpenClaw driven AI robotic arm utilizing the Cyberbrick platform,

The Cyber Arm

an interactive website that helps visualize electromagnetism

antennasim

Microwth enables you to grow your own soilless microgreens indoors to add to your meals

Microwth - automated microgreen farm

Open-Source Self-Loading Battery Charger Using the RP2040

SPINC - DIY Automatic NiMH Charger

PowerPD, a compact ESP32-based programmable power supply that turns a USB-C PD charger into a small bench supply.

PowerPD — ESP32 USB-C PD/PPS Bench Power Supply

This tiny box can measure air temperature, humidity and pressure but also much more like CO, eCO2, NO2, NH3 and dust concentrations!

Solar Powered Air Quality Monitoring Station (IoT)

I've created a vertical Steam handheld console for playing Windows games.

Windows handheld game console

A 30 cm desk buoy on 8 stepper-driven lines that copies the live motion of a real ocean buoy. ESP32-S3, TMC2209, USB-C power.

SeaGlance: a desk buoy that moves with the sea

Offline password keeper project created by and for the Hackaday community

Mooltipass Offline Password Keeper

A place for Hackaday.io members in the LA area to share news/events info and find collaborators

Hackaday LA Meetup

8-bit CPU/GPU, 640x480 VGA, made of ATF22V10 PLDs and a handful of 74-series chips, all DIP through-hole.

PLACARD: homebrew computer built from 22V10 PLDs

A cloud-free smart power switch for my homelab

Remote power switch for homelab

An open-source Analog Lock-In Amplifier LOCKDOWN: LOCK-In Device for Observing Weak and Noisy signals

LOCKDOWN: An open-source Analog Lock-In Amplifier

Voice, text, and live image streaming with user controlled public-key exchange, RoIP, and support for user workflow plugins.

Software-Defined RF/RoIP Communications Platform

DIY microcontroller-based sonar for bathymetry an depth measurement

Design of an Echosounder system

An autonomous and highly modular embedded development platform powered by a RP2040 microcontroller.

uCompute RP2040

A clever ESP32-S2 tool cat, that remembers usernames and passwords, supports FIDO2, generates TOTP codes, and runs MicroPython apps.

TORQNYA-S2 -- Your Pocket-Sized Maker Companion

A maker friendly capstan based BLDC driven quadrupedal robot kit.

Stanley - the capstan based quadruped kit

Interesting On Hackaday.io

Discover Wearables

What are M5Stick and M5Stamp?

How it started

GitHub sources added for CCS 6.1.0

A very simple yet effective way to make your own NFC Ring. Merging organic and tech.

NFC Bentwood Ring

The only button

So far, it didn't work with AVR Studio 5 or Atmel Studio 6

Pivot to wearables

First, play around with an already built one

Design and control colorful pixels wirelessly to create amazing accent lights, wearables, and more!

Pulsar: Smart, Wireless, Wearable LED Pixels

A DIY dive computer based on micropython

Micro Dive

The OwnWatch is a Arduino compatible smartwatch which is soft- and hardware expandable and not much bigger than a common brand smartwatch

OwnWatch

Call of action for Mask Makers

Discover Virtual Reality

New Direction: VR

Raspi Zero Hat based USB gadget with 2nd MicroSD slot for ISO images. Select ISO to present from OLED screen, or select USB for maint.

USB Virtual CDROM ISO mounter booter

Hacklet 54: Virtual Reality

Progress log entry #3

Development of a physical interface that allows acquisition of the movements and orientation of a player.

Smartwear football boot

Use a Guitar Hero / Rock Band plastic "guitar" game controller as a real MIDI input device

MIDI Hero

New feature planned: Time Lapse

Pause all virtual machines before sleep

Compressing the system: Using clever optics to make the system compact

An iterative approach to tactile machine interfacing.

VR-10's

The HYDRA is a computing platform using a small footprint Hypervisor to run 1-6 (or more) hardware assisted virtual machines of any x86 OS

The HYDRA multiheaded virtual computer

Discover Robotics

The goal of this project is to create a standardized outdoor robotics platform, similar to the Turtlebot.

Open Rover

This is a great hack to turn a window motor into a extremely useful high torque side shaft motor for robotics and other projects.

Hack -a- Window motor for Robotics Use.

used for a quick power disconnect of combat robotics

Low amperage PCB switch for robotics

A wireless analog/digital multitool & data recorder

MultiSpork

QubeCast Max is a high powered radio module for PocketQube Satellites, HAB payloads, or anything that needs a small radio transciever.

QubeCast Max

Aerospace engineer turned marine robotics hardware designer.

Rusty Jehangir

I love robotics

Emiliano Borghi

Raspberry Pi controlled RC car using WiFi and a smartphone.

Pi RC Car

Robot Locomotion Playground with Simple Mechanism

Trotpaw

Six axis closed loop motion controller for open source robotics development

Freedom Run

An affordable 4/5/6 axis robotic arm design that can be easily made by students/enthusiasts developing for real world interaction.

HIGH PERFORMANCE ROBOTIC ARM

CAN controlled hobby servo

rbServo

Hacksburg's Latch mechanism

Latchburg

100% open source robot platform with accessability and affordability in mind: teaching children of all ages about robots & programming

Stubby the (Teaching) Hexapod

Programming and Electronics Learning Robotics kit, for students.

TurtlePi - Raspberry pi, Arduino Robot

Read On Hackaday.io

New Pages

Creating Memorable Events with a Professional Stage Lighting Company in Orlando

2 min read

AV-AMERICA

The uCompute Ecosystem: Three Years of Evolution

3 min read

JP Michon

555 Timer PWM Motor Controller

4 min read

DIY Circuits

Semantic Document Architecture: Engineering Websites for Both Human Readers and Search Parsers

3 min read

Neven Rakić

IPTV Testline kostenlos – 24h testen & Anbieter prüfen

3 min read

polpol2727

Semantic Document Architecture: Engineering Websites for Both Human Readers and Search Parsers

2 min read

Neven Rakić

Adding an AI Agent to a React Native App Without Rebuilding It

6 min read

Theodore Q

Smart IPTV - App einrichten, M3U & Smart-TV erklärt

3 min read

Jee Vang

How Does a Choke Inductor Work? Principles and Circuit Applications

10 min read

pcbmaster

My Journey: From the Z80 Era to the Pi Pico

2 min read

JP Michon

How to Recover Lost or Deleted Partitions on Windows?

9 min read

Eric

Inductor Coils Explained: How They Work, How to Choose Them, and How to Integrate Them into Real-World Electronics

12 min read

pcbmaster

Exploring eMCP Memory Integration for Embedded Hardware

3 min read

lorryluo

How to Measure an Inductor: A Practical Guide to Inductance, Resistance, and Real-World Testing

12 min read

pcbmaster

Watch Battery Replacement Field Guide: Identifying an SR626SW Without Guesswork

5 min read

mozelectronics

Curated Lists

From the Raspberry Pi Projects list See More

An AI chatbot build on Raspberry Pi zero 2w, with a small LCD screen, speaker, micphone and battery

Chatbot Zero - AI on Raspberry Pi zero

Combines a Pi Zero 2 W (now a Pi 4), a 7 ins Waveshare 1024 x 600 display and a Gherkin 30% ortholinear keyboard in a portable tablet.

Pickle Pi

A disembodied arm that spells out messages from the ether (as long as they come through Twitter)

Ouija Robot

Raspberry pi based open source device with SDR and easy to use controls for exploring RF signals and data.

SDR dock 1.0

Automatic poetry with Pi decimals, Chudnovsky algorithm and a Raspberry Pi Zero

PiemPi Machine

Highly miniaturized RP2040 12x12mm PCB module

Femto Module v1

Building a Rpi powered cyberdeck in a Toshiba T3100/20

Modernizing a T3100/20

iRobot Roomba 690 enhanced with a Raspberry Pi Zero 2W and IMU.

Roomba RPi

A simple replica of the tesla gun from one of my favorite shows. My first project, hoping to get it light up in different brightness levels.

Warehouse 13 Tesla Gun

Low-cost device for control mosquitoes, weeds, pest etc.

Laser device for neutralizing - mosquitoes

Converting a "Teeny-Tiny Turntable" kit into a working music player using a Raspberry Pi Zero and the power of NFC

Working "Teeny-Tiny Turntable"

Reading up to 9 XIaomi Mi Temperature and humidity sensors using nodeRed+Bash+gatttool

Reading a bunch of BLE sensors with raspberryZero

Active cooling and power breakout board for RPi Zero 2 W

Raspberry Pi Zero 2 W Active Cooling

I am making a full sized Sol-20 reproduction, the first fully assembled microcomputer with a built-in keyboard and television output.

Sol-20 Reproduction

Computer Head Costume with 16x16 LED Matrix, Raspberry Pi, and Espeak

Computer Head Costume

From the Awesome Projects on Tindie list See More

Modular open hardware robot for uROS2 & Microblocks

Rosmo robot

Instead of a $10 box from Amazon, go above and beyond

TOSLINK DAC

Create a series of boards designed for the RC2014 bus to achieve MSX/MSX2 compatiblity

MSX COMPATIBLE BOARDS FOR RC2014

Very simple remote switch, controllable by any infrared remote control

IR2IO

Mokki is portable retro game console. Games are compiled in the cloud, stored on your phone, sent to device via bluetooth.

Mokki: Much Retro Game Console

For IT geeks, retro game fans, makers. Open source, portable, modular to explore, create, learn, code & play

ESPboy - RetroGaming&Software development MuliTool

Portable Power Platform for Pi Zero

PiSugar Battery for Raspberry Pi zero

Expansion Module BACnet MSTP, 8DI 8DO

BACnet MSTP, 8DI 8DO

A USB-C PD Sink up to 20V 5A based on the Cypress CYPD3177 USB PD Controller

USB-C Power Delivery Sink - CYPD3177

The controller LED strips of from 30 to 240 diodes.

Musical LEDs

A Feather-wing in the shape of snowflake shines in colourful animations with 19 independently-controlled RGB LEDs.

ColourSnow

A 6.4A-2uA current/voltage/power monitor based on the TI INA209 with dedicated GND usable as Shield, Wing, Breakout or Breadboard.

Watt-A-Live INA209 Power Monitor Shield Wing

A 65c816-based MiniITX motherboard.

Neon816

A quiet El Wire inverter with USB plug for easy use.

Quiet EL Wire Inverter

A breakout board for Analog Devices' 8x12 analog cross-point switch

ADG2128 Breakout

From the Featured Projects list See More

ESP32 E-Ink watch that can run solely on solar power

LightInk

PowerPD, a compact ESP32-based programmable power supply that turns a USB-C PD charger into a small bench supply.

PowerPD — ESP32 USB-C PD/PPS Bench Power Supply

I turned my 2-ton industrial robot into something it was never meant to be: a 3D-printer.

Turning a 2 ton robot into a 3D-printer

WORLD’S FASTEST COMMODORE PET USING THE MCL65+ 6502 DROP-IN EMULATOR

WORLD’S FASTEST COMMODORE PET USING THE MCL65+

One would think that two Type 30 Display Reproductions would be enough for one man. Wrong. One last kick at the can.

Another Type 30 Display Reproduction At 36% Scale

OrbitClock blends futuristic design with IoT tech. It shows real-time NTP time and environmental data in a sleek satellite-style form.

OrbitClock – a Tiny Space IoT Environmental Clock

A little standalone emulation platform for machines from the seventies based on the RP2040. Just add a terminal.

The Seventies Board

It’s a PCB art board. It’s a music player. It’s something else entirely. Hard to define

The Beetles PCB ART

After 45 years, the original Microtronic firmware ROM rises from the ashes and flies with new hardware!

Microtronic Phoenix

A minimalist MAME cabinet built mostly from scrap and recycled materials

Bartop Arcade Cabinet From Scrap and E-Waste

Mini Infinity Mirror SAO

SAO Infinity Mirror

The Skull of Fate SAO is an interactive tarot RFID card featuring i2c host and i2c client capabilities and GPIO interface with the badge.

Skull of Fate SAO

SAO that adds Lora Communication

SAO Lora Walkie Talkie

Canned messages, blinking lights, I2C capable....

SAOGNR - An SAO for Morse Code

No code, no PCB, just a Shitty Add-On for Supercon living in the moment

NixieSAO