This tiny audio amplifier is based on the Texas Instruments TPA2005D1. Its efficient class-D operation means low heat and long battery life. It can drive an 8-Ohm speaker at up to 1.4 Watts; it won’t shake a stadium, but it will provide...

The Cellular Shield for Arduino includes all the parts needed to interface your Arduino with an SM5100B cellular module. This allows you to easily add SMS, GSM/GPRS, and TCP/IP functionalities to your Arduino-based project. All you need...

These were really nice safety glasses. Then we decided to completely ruin them and slap the geek logo on there. Don't worry, it doesn't impair your vision... dangerously. Here our photographer, Juan, is helping our receiving guru, TJ,...

The EasyDriver is a simple to use stepper motor driver, compatible with anything that can output a digital 0 to 5V pulse (or 0 to 3.3V pulse if you solder SJ2 closed on the EasyDriver). EasyDriver requires a 7V to 30V supply to power the...

These headers are made to work with the Arduino Uno R3, Leonardo and new Arduino boards going forward. They are the perfect height for clearing the USB-B connector and great for stacking multiple shields. This kit includes 4 headers (2...

Here is a real time clock based on the DS3234 Real Time Clock IC. The DS3234 is a low-cost, extremely accurate SPI bus real-time clock with an integrated temperature-compensated crystal oscillator and crystal. The RTC maintains seconds,...

These small steppers are a great way to get things moving, especially when positioning and repeatability is a concern. When using a current limiting driver such as the Easydriver or Big Easydriver, a 12 volt power supply can be used as...

These are original Sharp color TFT-LCDs designed to be used in the PlayStation Portable. 4.3" of beautiful 24-bit color with powerful LED backlight. 480x272 pixels - each pixel has RGB control. Data interface is 24-bit so start looking...

This is a simple 2-terminal microswitch, with a 36mm actuator. This switch has a great 'clicky' sound to it, and a nice tactile feel. We used these while lighting up a cupboard at home using led lighting. It can handle anything between...

Fingerprint scanners are awesome. Why use a key when you have one right at the tip of your finger? Unfortunately, they’re usually unreliable or difficult to implement. Well not anymore! We’ve found this great fingerprint module from...

Even though the Tron movies have been out for a while, electroluminescence is still the coolest thing since sliced bread. The only downer is carrying around a battery pack and bulky external inverter. Good news, we've found a slim...

This load sensor, sometimes called a strain gauge, is the same one found in digital bathroom scales (you know, the ones you use in January for your New Year’s resolutions, and then forget about a month later). This sensor can measure up...