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- Artificial intelligence
- Astronomy
- Augmented Reality
- Automotive
- Bikes
- Clocks
- Communication
- Cryptocurrency
- Displays
- Drones
- Environmental Sensing
- Fire & Pyrotechnics
- Fitness
- Food & Drinks
- Games & Gaming
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- Health
- Holidays
- Home Automation
- IoT
- Kids & Family
- Lights
- Music
- Notifications
- Photos & Video
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- Productivity
- Retro Tech
- Robotics
- Security
- Sensors
- Sports
- Star Wars
- Sustainability
- Upcycling
- Vehicles
- Virtual Reality
- Voice
- Wearables
- Weather
Platform
- All
- 4D Systems
- 8bitcade
- Adafruit
- AIY
- AllThingsTalk
- Amazon Alexa
- Amazon Web Services
- Analog Devices
- Android
- Android Things
- Anycubic
- Apple
- Arduino
- Arm
- Arm Mbed
- Atlas Scientific
- Atmel
- Autodesk
- Avnet
- balena
- Bare Conductive
- BeagleBoard
- BITalino
- Blues Wireless
- Bluz
- Blynk
- Bolt IoT
- Bosch
- C.H.I.P
- circuito.io
- CircuitPython
- Commodore 8-bit
- ControlEverything.com
- Creator
- Cypress
- DeviceHub.net
- Dexter Industries
- DFRobot
- Digilent
- Digispark
- Eclipse IoT
- Edge Impulse
- EduBlocks
- Electric Imp
- Elegoo
- Ender
- Espressif
- Espruino
- Everything ESP
- evive
- Firmware Modules
- GoPro
- Helium
- Hologram
- Home Assistant
- Honeywell
- IBM
- ICStation
- Idiotware Shield
- IDT
- IFTTT
- Infineon
- Intel
- Itead
- Java
- JLCPCB
- Jupyter
- KiCad
- LabVIEW
- LattePanda
- Leap Motion
- LEGO MindStorms
- LeMaker
- Linux
- Linux Arm
- Losant
- M5Stack
- Mac
- Makeblock
- MATLAB
- MATRIX Labs
- Maxim Integrated
- Meadow
- MediaTek Labs
- micro:bit
- Microchip
- MicroPython
- Microsoft
- MikroE
- MikroElektronika
- MIT App Inventor
- Mongoose OS
- Mouser
- MQTT
- myDevices
- nanoFramework
- NeoPixel
- Netduino
- Neuton Tiny ML
- noads
- Node-RED
- NodeMCU
- Nordic Semiconductor
- NVIDIA
- NVIDIA Jetson
- NXP
- Oculus
- ON Semiconductor
- Onion Corporation
- OpenCat
- OpenCV
- Panasonic
- Particle
- PCBWay
- Philips hue
- PHPoC
- Pi Supply
- Pimoroni
- PINE64
- PlatformIO
- Prusa
- Punch Through
- PX4
- Pycom
- Python
- Qualcomm
- RakWireless
- Raspberry Pi
- Red Pitaya
- RedBear
- Renesas
- RobotGeek
- ROS
- RT-Thread
- Samsung IoT
- Seeed Studio
- SensiML
- Sigfox
- Silicon Labs
- SmartMatrix
- SmartThings
- Sony
- SparkFun
- STM32 Nucleo
- STMicroelectronics
- Taoglas
- Teensy
- TensorFlow
- Texas Instruments
- The Tactigon
- The Things Network
- Thinger.io
- Things On Edge
- thingSoC
- ThingSpeak
- TI LaunchPad
- TinyCircuits
- Tuya
- Twilio
- Ubidots
- Ubuntu
- UDOO
- Unity
- Visuino
- VoCore
- Walabot
- Weather Underground
- Wilderness Labs
- Windows
- WIZnet
- Xamarin
- XBee
- Xilinx
- Zerynth

New Raprep 3d Printer
Hello, I am planning to develop a new 3d printer based on one of the existing Raprep designs. I want to make this printer as replicable as possible, with largest percentage of all parts 3d printed. I already have experience in 3d printing using Ender 3 V2, soldering and programming. I am 4th year computer engineering student.
Difficult

The Ai Mood Stabilizer
We accepted the challenge to create a Google AIY vision and voice enabled device to detect a person's mood and enhance it. We’ll be toying with your emotions, what could possibly go wrong?
Moderate

The Sanity Check
A mask that randomly glows its eyes red. Often enough so it's noticeable, but sparsely enough to make people doubt their sanity.
Easy

Delightfully Delirious Day Clock
Also wondering what day it is today? This delightfully delirious day clock narrows it down to roughly eight different possibilities!
Easy