We designed the Adafruit I2C to 8 Channel Solenoid Driver featuring an MCP23017 GPIO expander to make using up to eight solenoids easy and solder-free. Power the solenoids with a DC power supply, 3V to 24V DC maximum. Each solenoid has its own pass transistor AO3406 N-Channel MOSFET. A red LED will light up to let you know that the transistor is on.

We really love the sounds coming out of the Adafruit TLV320DAC3100 I2S DAC with Stereo Headphone and Mono Speaker output - it's got clean, excellent-quality, stereo audio that can connect directly to your 16 ohm headphones and/or a 4 ohm - 8 ohm speaker. This makes it excellent for all-in-one audio projects without needing an external amplifier.

Build an internet-connected asteroid tracker. This tracker displays the asteroid name, date, predicted distance from the moon, predicted distance from earth and impact percentage.

When the TPS65131 Split Power Supply breakout was added to the shop I thought one thing: Eurorack! Eurorack synthesizers use +12V and -12V for their power input. This can be tricky to accomplish with the usual DIY tools at our disposal, thus this project: a simple 5V USB to standard 10-pin Eurorack power supply. Perfect for quickly testing a module or using a module outside of a usual rack setup.

Make a Bluetooth speaker with an ESP32 Feather, I2S amplifier, speaker and 3D printed case inspired by TV show Severance.

Build an LED Moon Phase clock that updates throughout the cycle!

Need those tricky split-rail voltages for your vintage electronics? The Adafruit TPS65131 Split Rail Boost Converter generates both positive and negative voltage rails from a single 3-5V input. This makes it great for mimicking or replacing a transformer-based power supply or something that needs negative bias. We kept the design compact, and it even has adjustable output pots, so you can tune the voltages from about +6~+15VDC and -6~15VDC.

We stock a lot of chips and development boards that are able to do high quality digital I2S out, which makes for great quality audio playback. That's great when you have enough processing power to decode WAVs or MP3s in real time. However, we don't have a good selection of I2S DAC boards...until now! We really love the sounds coming out of the Adafruit PCM5102 I2S DAC with Line Level Output - it's got clean, excellent-quality, stereo audio and does not need any MCLK or I2C configuration. Literally just pipe some I2S audio in and it ill just work.

This project is built around a Raspberry Pi 5 running Python code inspired by the Macrodata Refinement program in the TV show Severance. A DRV2605L breakout vibrates a small haptic motor as your cursor gets closer to the intimidating numbers on the screen. A Raspberry Pi Touch Display 2 is used for the screen.

If you've ever said to yourself, "Gee, I wish I had eight 12-bit DACs that came in a single package", well I have good news. The Adafruit DAC7578 Breakout is the answer to your wishes! Within its little package, the DAC7578 has eight 12-bit DACs for whatever voltage setting needs you may have, easily controlled over I2C.

'Round these parts we enjoy unusually-shaped displays. And this one certainly fits the description - it's a 1.28 inch diagonal TFT that comes in a round shape and contains a high density 220 PPI, 240x240 pixel RGB display with full-angle viewing. It looks a lot like our 1.54 inch 240x240 square display, but with the edges beveled off.

The Adafruit LPS28 (LPS28DFW) Pressure Sensor is unique in that it can handle a much higher range of pressures: almost every other sensor we've encountered tops out at about 1260 hPa. That means they're totally fine for measuring altitude for most human endeavors, we tend to stay above sea level. However, for some scientific or deep-water uses, 1260 will not cut it! That's why we're happy to stock a sensor that can go down to 4060 hPa - that's as low as -43,000 feet below sea level in air or 40 meters underwater.

The INA228 is an amazing power monitoring chip, with best-of-everything support: up to 85VDC common-mode, high or low side measurements, 20-bit (!) ADC for precision measurements from milliamp to Amp, and I2C interface for easy configuration of alerts, oversampling, gain adjustments and more!

Help toddlers conceptualize time with a visual countdown display

Adafruit's Sparkle Motion board puts easy LED control right at your fingertips. Onboard Infrared control, a microphone for sound reaction, and multiple LED ports make this board perfect for larger scale LED projects.