by Ethan Zonca @ protofusion.org: Therm is a very small PID controller with an OLED display, thermocouple interface, and USB port. It can switch an external solid-state relay for driving large loads, or a transistor for driving small loads. When attached to a computer, it enumerates...

A loudspeaker without a membrane which can be mounted on any flat surface solves aesthetical and technical problems. Fans of HiFi sound and similar „audiophils“ usually don´t cover their loudspakers and surely not their membranes. Firstly, to cover a beautiful top-class...

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...