All Products

SKU: AF-5137

A 70 mm diameter cool white LED ring light with a built-in USB cable and on/off switch. No soldering or wiring required — plug into any 5V USB power source, flip the switch, and it lights up. The slim, compact ring is bright enough for photo/video lighting, costuming, or project illumination. Th...

SKU: WS-15423

The RPi Relay Board (B) is an 8-channel relay expansion board for Raspberry Pi, giving your Pi the ability to switch high-voltage loads such as home appliances, lighting, motors, and other AC/DC devices. Each relay handles up to 5A at 250V AC or 30V DC, with photo-coupled isolation to protect the...

SKU: SF-PRT-27882 · MPN: PRT-27882

This adapter lets you use new Alchitry V2 boards with older Alchitry V1 add-on boards. It is designed as a bridge between the updated V2 connector layout and the original V1-style add-on ecosystem.The board has the new style connectors on the bottom for the V2 board, and the old style connectors ...

SKU: AF-3782

Simple snap-on encoder wheels for TT gearbox motors. These injection-moulded plastic discs attach to the opposite end of the motor shaft from your wheel, letting you measure rotation speed using a photo interrupter sensor to count the ticks as the encoder spins. An easy, low-cost way to add spee...

SKU: SF-SEN-11828

RFID (radio-frequency identification) is the wireless non-contact use of radio-frequency electromagnetic fields, for the purposes of identifying and tracking tags attached to objects. This is the ID-20LA, a very simple to use RFID reader module from ID Innovations. With a built in antenna, the on...

SKU: LB-LS7423

The GeekMagic Crystal Cube is a compact WiFi-enabled desktop display that shows time, weather, photo slideshows, and GIF animations. Once connected to WiFi, it automatically syncs the time and pulls real-time weather forecasts from global sources — all on a bright, easy-to-read screen. Beyond cl...

SKU: SF-SEN-12064

The HTU21D is a low-cost, easy to use, highly accurate, digital humidity and temperature sensor. This sensor is ideal for environmental sensing and data logging and perfect for a weather stations or humidor control systems. All you need is two lines for I2C communication and you’ll have relative ...

SKU: AF-6211 · MPN: ADA6211

A warm-white LED filament shaped as the letter "T", made from COB (chip on board) LEDs — the same technology found in Edison-style LED bulbs. Dozens of micro LED diodes are bonded onto a thin metal backing and coated in silicone, producing a bright, uniform glow from both sides. Lightweight and ...