The Rotary Encoder LED Ring is a position indicator for rotary encoders. Traditional knobs with indicator lines do not give accurate representation of an encoder’s value since rotary encoders have no start or end point. The Rotary Encoder LED Ring has thru-hole or shaft mounting for most standard encoders and uses a Texas Instruments TLC5925 shift register to interface 16 green LEDs to any microcontroller through SPI. A microcontroller can be programmed to output any desired sequence on the LEDs.

The RHT03 (also known by DHT-22) is a low cost humidity and temperature sensor with a single wire digital interface. The sensor is calibrated and doesn’t require extra components so you can get right to measuring relative humidity and temperature.

RTC stands for real time clock folks. The DS3234 is a low-cost, extremely accurate SPI bus RTC with an integrated temperature compensated crystal oscillator (TCXO) and crystal.

The Pololu 15 Amp high-power motor driver is a discrete MOSFET H-bridge designed to drive one DC brushed motor. The H-bridge is made up of one N-channel MOSFET per leg, and most of the board’s performance is determined by these MOSFETs (the rest of the board contains the circuitry to take user inputs and control the MOSFETs). The board supports a wide 5.5 to 24 V voltage range and is efficient enough to deliver a continuous 15 A without a heat sink, or 21 A with a heat sink.

Side-looking Infrared Emitters and IR Detectors. These simple devices operate at 940nm and work well for generic IR systems including remote control and touch-less object sensing. Using a simple ADC on any microcontroller will allow variable readings to be collected from the detector. The emitter is driven up to 50mA with a current limiting resistor as with any LED device. The detect is a NPN transistor that is biased by incoming IR light.

A SparkFun original Lithium Polymer charger. This little black box charges single cell lithium polymer batteries with a max rate of 1A. This works well with our 5V/1A regulated supply. The charge output is via a 2-pin screw terminal. Top pin is ground, bottom pin is charge pin. Based on the popular Microchip part MCP73843-410.

Turn your TAZ 3D printer into a flexible filament printing wonder! With a quick installation and calibration of the Flexystruder tool head, your LulzBot TAZ 3D printer will be capable of printing multiple flexible materials, including Ninjaflex.

DB9 female header - right angle PCB mount. 0.318" Style.

Polarized connectors and headers for your perf board/PCB projects. Use these connectors for power connections or any sensor/general connection to prevent users from connecting the peripheral incorrectly or reversed.

Polarized connectors and headers for your perf board/PCB projects. Use these connectors for power connections or any sensor/general connection to prevent users from connecting the peripheral incorrectly or reversed.

Making Wearables with an Arduino-Compatible Electronics Platform This book introduces readers to building wearable electronics projects using Adafruit's tiny FLORA .. read more

This 5.0" TFT screen has lots of pixels, 800x480 to be exact, an LED backlight and a resistive touchscreen overlay. Its great for when you need a lot of space for...

RGB Pixels are digitally-controllable lights you can set to any color, or animate. Each plastic PVC 'pixel bar' contains 3 RGB LEDs and a controller chip soldered .. read more

The AM2302 is a wired version of the DHT22, in a large plastic body. It is a basic, low-cost digital temperature and humidity sensor. It uses a capacitive humidity .. read more

For projects where you just want to use RFID 13.56MHz tags or cards, this nicely packaged RFID reader may be more desirable than Adafruit's RFID/NFC shield or breakout. .. read more

This battery holder is by far the easiest way to add a battery to a small wearable project. By coincidence, there are two small 1mm diameter holes in the metal connection .. read more

Give your Pi some reach with this GPIO extender cable, which has two matching connectors on the end of a 12" (300mm) long gray cable. Plug one end into your Pi and .. read more

For charging nearly any kind of portable gadget, this 3-in-1 cable can handle it. Great for use with a Mintyboost, or Adafruit's USB power packs (or just powering your .. read more

This basic robot is intended for you to create a small autonomous or remote controlled robot. Although the kit includes all essential parts to make an autonomous robot, it is intended to allow you to add your own electronics in order to satisfy your objectives.

This is a Piranha LED light module. A digital pin (LOW on, HIGH off) is used to control it. The brightness of LED can be controller via PWM output.

Piranha LED light module (Red), and special sensors Arduino board and ambient light sensor extension combination, can be used in the interaction with the light works.

Piranha LED light module, and special sensors Arduino board and ambient light sensor extension combination, can be used in the interaction with the light works.

This Rotation Sensor V1 is arduino compatible and can be rotated upto 300-degree. It is based on the potentiometer.

This Sensor/Motor Drive Board (Cortex M3 CPU) is the integration of multiple communication interfaces that quickly build robotic systems. This board (Cortex M3 CPU) features the SPI Interface and works as a bridge between the whole system.

This sensor uses SHT1x sensor. SHT1x is individually calibrated in a precision humidity chamber. The calibration coefficients are programmed into an OTP memory on the chip.