cards & micros

The SparkFun Level Shifting microSD Breakout is quite similar to the SparkFun microSD Transflash Breakout, but with the included level shifting har...

Advanced 'X2' part Features (20X2, 28X2, 40X2 part) • all X1 part features plus • up to 4 internal program slots and 32 external program slot...

Right out of the box - Simple configuration and setup from your web browser. Control it from a web page, or select tcp/ip control with an option o...

The SparkFun OpenScale is a simple-to-use, open source solution for measuring weight and temperature. It has the ability to read multiple types of...

You've always wanted to output analog voltages from a microcontroller, the MCP4725 is the DAC that will let you do it! The MCP4725 is an I 2 C con...

Would you like to add audio/sound effects to your next project, without an Arduino+Shield? Or maybe you don't even know how to use microcontroller...

The Raspberry Pi B+ is everybody's favorite little computer, the last thing that you'd want is for something bad to happen to it. Why not protect ...

The Teensy is an amazing and compact development platform in a breadboard friendly form factor, but what if you could incorporate it into the Ardu...

The LilyPad MP3 Player is your all-in-one audio solution, containing an Arduino-compatible microcontroller, MP3 (and many other formats) audio dec...

This is a great battery-backed real time clock (RTC) that allows your microcontroller project to keep track of time even if it is reprogrammed, or...

Overview A low power version of the USB-RLY16 module, the USB-RLY16L is powered solely by the USB bus and provides eight volt free contact relay o...

ETH008 houses. Includes mounting holes for fixing to a wall or back panel. This precision snap together case includes screws for mounting the ETH0...

Number of Relay's - 8 Power - 5v @ 100mA max. Control interface - Serial or I2C Relay current - ...

This RC switch converts hobby radio control pulses to digital on/off signals and has an integrated medium, low-side MOSFET that allows it to drive...

Overview The USB-OPTO-RLY816 provides eight optically isolated inputs and eight volt free contact relay outputs with a current rating of up to ...

Are you low on I/O? No problem! The SX1509 Breakout is a 16-channel GPIO expander with an I 2 C interface – that means with just two wires, your mi...

Would you like to add audio/sound effects to your next project, without an Arduino+Shield? Or maybe you don't even know how to use microcontroller...

This board allows you to interface with your car's OBD-II bus. It provides you a serial interface using the ELM327 command set and supports all ma...

Right out of the box - Simple configuration and setup from your web browser. Control it from a web page, or select tcp/ip control with an option o...

The Raspberry Pi is a wonderful little computer, but one thing it isn't very good at is controlling DC Servo Motors - these motors need very specif...

Need to put your finger on the pulse of the Earth? Did I just blow your mind? A geophone works by translating ground movement into voltage, which ...

This adapter allows you to easily use gigabytes of SD card flash memory and/or a Wiznet WIZ820io ethernet module with Teensy LC, 3.0, 3.1 or 3.2. ...

PaintYourDragon is back with another gorgeous laser-cut masterpiece. This time he's taken a pass at updating the classic Adafruit Pi Box for the R...

Allows easier interfacing of the A20 board by displays with VGA port connector (very useful if you lack HDMI screen). The signals from the small o...