A Linux computer along with a USB SDR device can pick up several interesting kinds of radio signals. However, wrangling all of the software and libraries necessary to receive and decode signals is quite a chore. iNTERCEPT is an easy to install signals monitoring system with a UI resembling something you'd see on a screen in the background of a spy movie.

This is an easy to use lux sensor, and features an ultra-wide 22-bit dynamic range from 0.045 lux to 188,000 lux. You can use the Adafruit MAX44009 Wide-range Lux Sensor in darkness or in bright outdoors sun, without having to tweak the integration time or gain: the sensor will auto-range for you so you get smooth readings no matter the light level.

Learn how to set up a Raspberry Pi to host a WiFi access point to share internet access from an upstream ethernet or other WiFi network. Enable bridging to to allow devices on the different networks to communicate with each other.

Explore endless generated 2D mazes looking for fun and colorful eggs. At the end of each round review the eggs you found and save any that you can't live without to your collection. They'll be saved to persistent storage so you can come back and view them any time.

We've all been there. That thing is close but how close? When you need to measure a small distance with reasonable accuracy, the VCNL4030 Proximity Sensor from Vishay can do that for you. If perchance you also need to measure the amount of light at the same time, the VCNL4030 can do that too.

It acts a bit differently than the color sensors folks are used to, where there are sensors at wavelengths 437nm (X1), 574nm (X2), 537nm (Y) and 434nm (Z) and then the user is expected to calibrate it against a known color space analyzer for their application. For folks that want something that just spits out CIE and Lux data, the OPT4048 is more complete however, there may be some use cases for people who want the raw count data only!

The Adafruit AS7343 14-Channel Light / Color Sensor Breakout is a multi-channel spectrometer, which is a special type of light sensor that is able to detect not only the amount of light present but also the amounts of light within different wavelengths. This means that you can use it to detect much better than the human eye is capable of, what color or colors of light are present. The AS7343 packs within its 3x2mm footprint 25 photodiodes that can detect 11 separate, overlapping bands of visible light, plus one near infrared, one clear and a flicker channel for 14 channels total.

If you want a sensor that's a 3-in-1, the Adafruit APDS9999 Proximity, Lux Light, and Color Sensor has RGB color, lux light level as well as infrared proximity all built into one device. When connected to your microcontroller, it can detect the amount of red, blue, green, and clear light, as well as how close an object is to the front of the sensor. This device uses an I2C interface, so it's easy to wire up and use.

Moonshine voice is designed to transcribe real-time audio speech into text. This project uses a USB microphone connected to a Raspberry Pi to accept voice commands to control a strip of NeoPixels.

A CircuitPython port of the micropython Tiny Wiki project by Kevin McAleer. Runs on the Fruit Jam by default using its built-in WIFI to host the HTTPServer and SD card to store the Wiki pages as markdown files.

OpenClaw is a project that gives an LLM agent control over a computer. The agent can install software, write and run programs, integrate with external services, and much more. Running OpenClaw on a Pi opens up world of possibilities with many types hardware that can be connected to the device and given to OpenClaw to control and interact with.

Load up your favorite haiku poems and show them on the MagTag eInk display. Store them in a local file or as a remotely manageable feed on Adafruit IO. Press the left and right buttons to cycle through the available haikus, and the down button chooses a random one.

Make a snowflake by clicking points with the mouse to cut out shapes, or use a custom SVG or PNG file for the front of your card. Input text for the front and inside messages. Generate the card when everything is set and then find it inside of CPSAVES on the PC and open it in a browser to print. Then fold the paper into quarters and your card is ready!

There are unique quotes for nearly every minute of the day. Many of the minutes have several, and choose from them at random. The quotes are displayed on the MagTags eInk display along with the book title and author.

This project uses locally running "edge" AI models on the Raspberry Pi 5 to translate text, suggest appropriate attire based on the weather, and then speak the weather and wardrobe suggestion in one of 6 different languages. SmolLM3 is used for translation and wardrobe suggestion, and Piper TTS is used for multi-lingual text to speech.