This project introduces the use of PCA9550, an LED driver that causes the 2 LEDs to ON/OFF or in a flashing state at programmable rate. It has 2 selectable, fully programmable blink rates between 0.172Hz and 44Hz or 5.82 seconds and 0.023 second respectively. Its internal oscillator...

by mohamed soliman @ instructables.com: If you are looking for comfort and controlling your electronic devices remotely, you will find your need in this instructable. In this instructable we will learn how to control a servo motor with remote control, this will give you a general...

by rheslip.blogspot.com: After playing around with the SynthNV signal generator/power detector discussed in the previous post I realized what a useful a tool it is for RF testing. While its a terrific tool for VHF/UHF/Microwave testing, the SynthNV has a couple of serious limitations...

The last and final design, the Teensy and GPS is directly powered from 3.7v li-on batt. Arduino code and pcb layout (ARES) available. Teensy GPS Logger redesigned in smaller version -...

Minimum power consumption, very good legibility and a lot of versions – these are the EA DOG displays. When we speak about “versions” – in case of EADOG from company Electronic Assembly it means a lot of “glass” types (STM, FSTN, transflective,...) and what is unique...

by Martin Cooke @ elektormagazine.com: Atmel has recently announced the addition of the SAM L22 series to its family of secure, ARM® Cortex® M0+-based MCUs. These new devices offer a built-in, ultra-low power capacitive touch interface with a segment LCD controller that can...

by GreatScottLab @ instructables.com: Wouldn't it be nice to turn on your lights without getting off the couch? In this project I am going to show you how to build a simple Arduino clap circuit which can turn on and off all kinds of AC appliances. Let's get started! Turn your...

Manual switching of outdoor lights in houses or roadways can be sometimes really inconvenient especially when we are far away or still at work. Sometimes this becomes an opportunity for thieves to infiltrate houses or a possibility of accident in roadways if night comes and our...