Sparkfun

If you\'ve ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be. The SparkFun bi-directional logic level convert...

The SparkFun 8 Channel Level Shifter Breakout features the TXS0108E™ 8-bit, bi-directional logic level translator from Texas Instruments. This boar...

The SparkFun Single Supply Logic Level Converter is logic level and power supply translator in one small package. This little board breaks out the ...

This diode-transistor photocouplers consist of an LED, optically coupled to a high speed photodetector to transmit electrical signals between circ...

There are a couple must-have boards that every engineer and hobbyist should have on their desk, and this PCA9306 dual, bidirectional voltage-level ...

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

This is a board designed for [opto-isolator](http://en.wikipedia.org/wiki/Opto-isolator). This board is helpful for connecting digital systems (lik...