Microcontrollers & Development Boards

Gravity IO Expansion Shield with Motor Driver is a new product designed for Arduino Boards. It combines IO Expansion Shield and DC Motor Driver ...

What's smaller than a Feather but larger than a Trinket? It's an Itsy Bitsy! Small, powerful, Arduino-compatible - this microcontroller board is...

This is just about the cutest, tiniest little micro servo we could find, even smaller than the 9 gram micro servos we love so much.  It can rotate ...

Trinket may be small, but do not be fooled by its size! It's a tiny microcontroller board, built around the Atmel ATtiny85, a little chip with a lo...

This is a handy AVR programming cable that incorporates both the 10-pin and 6-pin ISP programming interfaces.Cable is about 12" long.

This is the FeatherWing Doubler - a prototyping add-on and more for all Feather boards. This is similar to our FeatherWing Proto except there...

Feather is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! We designed Feather to be a new s...

This motor has a long (0.365" or 9.27 mm), D-shaped metal output shaft that matches the Pololu wheel 42x19mm and 32x7mm. The brass faceplate ...

These are addressable 1-meter-long 5V RGB LED strips that come packed with 60 APA102Cs. APA102 LEDs are very similar to WS2812s with a few caveats:...

CheapDuino is the most affordable Arduino compatible processor in the world. The price for each cheapDuino is almost 1/5 price of the Ar...

One can never have enough socks, or USB ports. Add some more USB and Ethernet capability to your Raspberry Pi Zero or, really, any kind of table...

The ATtiny45 and 85 are a couple of really cool little MCUs but did you know you can program them in Arduino? That’s right, now you can shrin...

Are you trying to make a quick dime from electronics? Why limit yourself to dimes? This coin acceptor will take three different kinds of coin...

Wide range, low power temperature sensor outputs an analog voltage that is proportional to the ambient temperature. To use, connect pin 1 (left)...

The SparkFun XBee Explorer Regulated takes care of the 3.3V regulation, signal conditioning, and basic activity indicators (Power, RSSI and DIN/DOU...

Romeo family is an All-in-One Arduino based control board especially designed for robotics applications from DFRobot. It benefits from the Ardu...

The CAN-BUS Shield provides your Arduino or Redboard with CAN-BUS capabilities and allows you to hack your vehicle. This shield allows you to poll ...

The SparkFun XBee Explorer Serial is a simple to use, RS232 to serial base unit for the XBee line. This unit works with all XBee modules including ...

Add bluetooth 4.0 to your PC, Mac directly with this USB BLE-Link. It uses the USB package which is compact and compatible with v2.1 and earlier...

The DFRduino Nano USB Microcontroller V3.1 (ATMega 328) is a breadboard ready version of the Arduino mini with integrated USB. The arduino Nano...

The ESP8266 started a small revolution by bringing WiFi to a small and cheap package that also had enough processing power and enough pins to ge...

This is an awesome little microSD USB reader. Just slide your microSD card into the inside of the USB connector, then stick this into a USB port an...

This is an SMD 12mm square SPST button. What we really like is the large button head and good tactile feel (it ‘clicks’ really well). This button i...

Do you ever wish your Arduino was more musically talented? Or maybe your project could use some cool sound effects. The SparkFun Musical Instrument...