28.7k 1k 18 118
An open source hydroponic garden control, monitoring, and grow system with cloud database and dashboard.
Project Owner Contributor


Adam Vadala-Roth

17.6k 169 32 112
Affordable spider robot
Project Owner Contributor


Radomir Dopieralski

37.1k 204 24 89
Converting a car to electric drive using recycled and salvaged EV and hybrid components.
7.4k 437 7 86
Acquire EEG, ECG, EMG (medical instrument) signals while rejecting AC coupled noise
Project Owner Contributor

Biopotential Signal Library

Paul Stoffregen

17.1k 805 7 69
Professional quality, 24 bit, 192kHz audio breakout board for Teensy 3.x, Raspberry Pi, and more.
10.6k 348 12 47
Instantly share mouse and keyboard across computers on any platform.
8.4k 862 11 45
Firefly is a low-cost, modular flying robot for first responders that uses intelligent, nature-inspired algorithms to navigate autonomously.
8.8k 992 6 45
A low cost, full featured open source, industrial camera
Project Owner Contributor

Open Source Industrial Smart Camera


17k 102 7 44
This is a low cost portable Ultrasonic range finder and sonar device to help a visually impaired person navigate indoors.
Project Owner Contributor

Sonar for the visually impaired

K.C. Lee

9.4k 83 5 43
Every Day Carry bit flipper
Project Owner Contributor

Tiny Bit Dingus


10.4k 108 12 42
It is a computer mouse free of batteries and free of cables. No need of USB connection and no special mousepad as well!.
Project Owner Contributor

Wireless Batteryless Mouse

Clovis Fritzen

11.5k 227 17 33
Solving a key farming problem: is it safe to harvest / spray / sow today? (+experiments with 'big' data in agriculture)
Project Owner Contributor



6.3k 88 1 32
Growing food where it's needed, ready to be sold.
Project Owner Contributor

Modular Vertical Farming


2.6k 32 0 26
Bicycle-powered road quality measuring and mapping
Project Owner Contributor

Dekoboko 凸凹

Daniel Rojas

6.5k 67 16 25
A low cost Raspberry Pi powered all in one Braille computer with a full page display.
Project Owner Contributor

Braille Computer

haydn jones

4.5k 60 24 24
Zero Cost Dumpster Diving Solar Project
Project Owner Contributor

Poor Man's “Laser” Cutter


1.5k 45 10 20
A project to provide a form of "vision" to the blind and partially sighted.
Project Owner Contributor

The Vision Project

haydn jones

2.8k 1.8k 12 19
Global two-way satellite communication for robotics and IOT sensors. Easy to use, GPIOs, telemetry, low power and web API provided.
3.2k 48 4 18
Open-Hardware home-plugged box, to read and write emails privately from anywhere in the world, out of sight of NSA -
2.4k 527 8 16
An Electronic Power System in the PocketQube 60 femtosatellite form factor
Project Owner Contributor

PQ60 - EPS


4.3k 915 3 15
An Internet of Things Device to Let My Aging, Disabled Father Know that the Stove is Off, and Ease His Paranoia...
1.2k 705 6 15
The idea is to take the water used in a shower to use for flushing the toilet, there is no sense in using drinkable water for that
Project Owner Contributor

Shower water repurposer


3.8k 23 24 15
An attempt to recycle the water wasted during the warm-up period at the start of a shower.
Project Owner Contributor

Shower water saver


1.8k 60 3 14
This is a non-invasive breath detector, lungs thermometer and other breath parameters logger
Project Owner Contributor

How are you? Errr... are you alive?


2.5k 215 2 14
A community pollution monitoring system aggregating pollution data from individual station users to get information on the environment.
744 687 4 13
show control from an led instrument. bring the audience into the performance experience. play highly reactive and mode setting patterns
1.3k 50 6 12
A personal lightning strike detector and dangerous weather alerting device
Project Owner Contributor


brian bloom

2.1k 23 0 11
An asset tracker geared toward the elderly, demented, and folks who get lost.
Project Owner Contributor

Elderly Asset Tracker


8.3k 174 7 11
A template for battery powered sensors using GSM
807 277 5 10
Wearable biofeedback device to help people manage stress, panic, and anger!
Project Owner Contributor

The Temperizer

Dan Fruzzetti

1.8k 451 2 10
A Hydroponic/Greenhouse system that has been automated as much as possible to remove the maintenance burden of these systems from the user.
Project Owner Contributor

Smart Hydroponic GreenHouse

Tom Van den Bon

1.4k 538 3 10
Teensy v3.1 - FrSky Smart Port Sensor Shield with addressable led output and telemetry port
2.1k 14 10 9
Having been exclusive to a certain uC-line for over a decade, it's time to learn something new (and port commonCode!)... Enter MIPS
1.9k 485 6 9
USB keyboard that lets you type in 8-bit binary!
1.3k 38 0 9
Stuck on a island in the middle of the ocean without a wifi backup disk? The TEENSY SD USB back up tool is what you need!
Project Owner Contributor

SD card back up tool


1.2k 630 2 8
A pen with optical text recognition that reads text aloud ... potentially helping the visually impaired
Project Owner Contributor


Brian Chen

1.3k 21 11 8
Measuring strain using strain gauges.
Project Owner Contributor

Strain Indicator V2.0

Ahmed Hefnawi (Volta)

3.2k 19 3 7
Automatic watering of basil plants
Project Owner Contributor

Keep the basil alive


2k 57 0 7
Telegram is a great IM client. Recently they implemented a bot API. Telegram control is a hardware device that can be controlled by Telegram
Project Owner Contributor

Telegram Control

Tom Van den Bon

1.5k 18 0 7
Designed For Nextion HMI TFT Use
487 72 0 6
This project aims at controlling a car through a trajectory traced by the user on a screen running windows or android
Project Owner Contributor

Sketch Drive Car


1.7k 29 2 6
For SMD reflow soldering or temperature annealing of various materials up to 300 °C (572 °F)
Project Owner Contributor

Wi-Fi Reflow Oven


555 20 0 5
Why is there no brake lights on bicycles? Let's make some!
Project Owner Contributor

Bicycle brake light message

Theis Borg

578 30 0 5
Open Sensor Array provides a host platform with unified interface and API for all kinds of sensors and measuring device.
Project Owner Contributor

Open Sensor Array


272 15 0 5
Use OpenCV & Reverse Pick-N-Place to Identify, sort, and test components harvested from e-waste
Project Owner Contributor

Automated Component Recovery

Aleks Clark

562 38 1 5
Converts a CTE70-compatible SSD1963 GLCD into an I2C or 1-wire slave device for use on the TeensyNet
Project Owner Contributor



1.7k 1k 0 5
Monitor ambient light, temperature, barometric pressure and altitude via your browser.
Project Owner Contributor

Sensorian IoT Dashboard


602 16 3 4
Because you never know when you'll need directions or some bad poetry
Project Owner Contributor

Navigating Poet


434 9 0 4
A doorbell system that predicts who is on your door step by recognizing individuals face and wireless device MAC
Project Owner Contributor

Lazy Man's Doorbell

Tim White

389 5 0 4
Beam sound into the clouds to make raindrops form. Also usable as an LRAD/HyperSpike substitute, maybe.
572 8 0 4
A USB device which acts as a normal mass storage device while encrypting all transferred content
Project Owner Contributor

Hardware Encrypted Flash Drive


922 29 0 4
A flexible MOSFET controller board that can be used for a wide range of uses. BLDC, Inverter, three phase motor, Dual H Bridge.
Project Owner Contributor

Flexible MOSFET controller board


1.5k 16 4 4
Ever since I started learning electronics, I had this need of logging data from my experiments. Here is my solution.
Project Owner Contributor

Teensy data logger

Clovis Fritzen

537 301 6 4
Remote monitoring hardware for cheese maturation, with real time plotting and logging.
Project Owner Contributor


Gus Logan

1.5k 20 4 4
Reduce particulate air pollution indoors without wasting energy
Project Owner Contributor

Indoor air pollution reduction


844 12 5 4
Take 1 AC Lamp, a uController, a normal LED bulb and some color LED strips to get a functional lamp that also can send colored alerts.
Project Owner Contributor

Smart Lamp Notification

Neil Cherry

562 744 0 3
temperature controlled fan/blower system to keep constant smoker temp.
Project Owner Contributor

BBQ Smoker Temp Control


348 17 0 3
Capacitive Touch Flex Module based on MPR121 that provides 12 inputs. For sale on Tindie.
288 258 0 3
Device to track some environmental conditions nearby to try to correlate them to headaches and other medical conditions.
Project Owner Contributor

Personal Environmental Logger

robbie nichols

1.2k 13 6 2
STM32 based Logic Analyzer
Project Owner Contributor



494 9 0 2
I just received my free teensyLC from hackaday and already saved my wife's iPhone
Project Owner Contributor

fix wet iPhone with teensyLC


363 10 0 1
An incoming mail alert system, solar powered and transmitting mail arrival notifications wirelessly to an "inside home" micro base station.
Project Owner Contributor

Mbas - Mail box alert system

Clovis Fritzen

978 704 0 1
Notify the developers with light and sound if automated builds succeeded or failed
Project Owner Contributor

Build Siren