cards & micros

Because the Arduino (and Basic Stamp) are 5V devices, and most modern sensors, displays, flash cards and modes are 3.3V-only, many makers find t...

The Teensy USB Development Board is a complete USB-based microcontroller development system. Version 3.6 features a 32-bit 180 MHz ARM Cortex-M4...

PRODUCT DISCONTINUED, REPLACED BY THE NEW VERSION The USB-RLY02 provides two volt free contact relay outputs with a current rating of up t...

RJ45 connectors are the kind that are used for Ethernet jacks, but they make great general purpose connectors when you need a lot of conductors. Th...

The 'must have' IC for TTL/CMOS projects finally has its own breakout board! This is the RS232 converter IC that is capable of running at 3V and co...

The USB-RS485 module provides an easy to use RS485 interface by means of a Virtual Com Port on the users system. There are no command structure...

The SparkFun Load Cell Amplifier is a small breakout board for the HX711 IC that allows you to easily read load cells to measure weight. By connec...

The cable is the easiest way ever to connect to your microcontroller/Raspberry Pi/WiFi router serial console port. Inside the big USB plug is a USB...

This is the newest revision of our FTDI Basic. We now use a SMD 6-pin header on the bottom, which makes it smaller and more compact. Functionality ...

The Grove - Speaker is a module consisting of power amplification and voice outputs. The loudness can be adjusted by the on-board potent...

Breakout board for the microSD socket that is not much bigger than your fingernail. Compatible with the SPI interface found on any SD card, this t...

This RC relay enables easy control of large, electrically isolated loads in radio control (RC) systems. The activation threshold and direction are...

The ETH002 provides two volt free contact relay outputs with a current rating of up to 16Amp each. The module is powered from a 12vdc supply which ...

Pimoroni's adjustable Pi Camera mount is a great accessory for Pi shutterbugs. Little screws attach the Pi Camera solidly and the design allows fo...

The Sound Detector is a small and very easy to use audio sensing board with three different outputs. The Sound Detector not only provides an audio...

The Teensy USB Development Board is a complete USB-based microcontroller development system. Version 3.5 features a 32-bit 120 MHz ARM Cortex-M4...

Listen up! This set of two 2.8" x 1.2" speakers are the perfect addition to any audio project where you need 4 ohm impedance and 3W or less of pow...

FEATURES: USB to serial cable three wires for Breadboard connection SERIAL output 3.3V voltage levels GND=BLUE, RX(INPUT)=GREEN, TX(O...

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 shrink you...

Version 3.2 is a minor upgrade to Teensy 3.1. The main change is an improved 3.3V regulator, to allow Teensy to directly power ESP8266 Wifi, WIZ82...

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 int...

ALUMINUM-HEATSINK-20x20x6MM is a small (20x20x6)mm aluminum heatsink radiator specially made for A10/A20 BGA chips. During heavy computations like ...

Surface transducers give you the awesome power to turn almost any surface into a speaker. They're essentially just a speaker except instead of a co...

This is a breakout board for the Texas Instruments TXB0104 module. The TXB0104 is a 4-bit bidirectional voltage-level translator with automatic di...