by John Fattaruso @ edn.com: When working with discrete JFETs, designers may need to accommodate a large variation in device parameters for a given transistor type. A square-law equation is usually used as an approximate model for the drain-current characteristic of the JFET:...

Tiny Board has been designed around LV8772 IC from On-Semi. This driver is capable of micro-step drive and supports 4W 1-2 phase excitation. It has Low on Resistance with motor current selectable in four steps. The board is equipped with unusual condition warning LED and input Pulse...

Simple LCD adapter board offers an easy way to interface a standard 16X2 LCD to your project. Specifications Very Tiny PTH PCB Onboard Preset to set the Contrast Easy interface with 10 PIN Box Header Connector LCD Adapter Board -...

I/O Expander Board offers a convenient way to interface upto 16 I/O pins in your project using SPI/I2C bus.  This kit uses the famous MCP23S17 IO chip from Microhip. Specifications Supply sourced through the interfacing Box Header connector The kit has 2 separate Box Header...

EEPROM Add-On Board offers an easy way to interface a standard 24Cxx type I2C EEPROM to your project. Specifications 5 VDC supply sourced through the interfacing Box Header connector Jumper selectable address option available Four mounting holes 3.2 mm each PCB dimensions...

This project is devised for LED dimming using NXP Semiconductors' PCA9532 16-Bit I2C-Bus LED dimmer. A lot of solid-state lighting applications require control over the emitted intensity of light for both functional and aesthetic requirements. Some of these applications also require a...

Kaspar of Monostable has released a Firefox version of his helpful purchasing tool the 1clickBOM, a browser extension to quickly add electronic components to shopping carts: 1clickBOM, a browser extension for quick shopping - Firefox version -...

by Kerry D. Wong: LM2596 based step-down DC-DC converter modules can be bought on eBay quite cheaply for around a dollar each. But how do they perform? Is it safe to use it to power your design? Let’s find out. According to TI’s website, these LM2596 step-down (buck)...