This project is a 4-phase unipolar stepper motor controller. Description Unipolar 4-Phase Stepper Motor Controller Board will help you control a Stepper Motor or 4 individual Solenoids. This circuit consisting of transistors that serve as current amplifier and also diode to prevent damaging back EMF, circuit uses Darlington transistors to provide high current capacity to […]
Unipolar 4-Phase Stepper Motor Controller Read More »
Description The MAX15108A high-efficiency, current-mode, synchronous step-down switching regulator with integrated power switches delivers up to 8A of output current. The regulator operates from 2.7V to 5.5V and provides an output voltage from 0.6V up to 95% of the input voltage, making the device ideal for distributed power systems, portable devices, and preregulation applications. The
MAX15108A – High-Efficiency, 8A, Step-Down Switching Regulator Read More »
Silence at last – or what to do, if a silent operation of a fan matters to us? Despite features of fans being still more improved, it´s still the fact, that they are usually the biggest noise source in devices. If a given device is intended say for a production hall, where an ambient noise
Choose a fan with a low noise and low power consumption Read More »
This project is a Real Time Clock based on SD1307 RTC Description RTC Add-On Board offers an easy way to interface a standard I2C RTC IC type DS1307, into your project. Specifications 5 VDC supply sourced through the interfacing Box Header connector. Battery backup for the RTC board available on the PCB Four mounting holes
DS1307 Real Time Clock Module Read More »
The Achilles Heel of the Mikroelektronika Hexiwear is its charging: the charging and USB connector are only designed for a limited number of plug-unplug cycles, and it does not have a wireless charging capability like the Apple iWatch. Until now! I have built a DIY wireless charging system for the Hexiwear ? : Wireless Qi
DIY IKEA Wireless Qi Charging Read More »
RICHLAND, Wash. – Scientists have created a microbattery that packs twice the energy compared to current microbatteries used to monitor the movements of salmon through rivers in the Pacific Northwest and around the world. The battery, a cylinder just slightly larger than a long grain of rice, is certainly not the world’s smallest battery, as
A battery small enough to be injected, energetic enough to track salmon Read More »
BOM-Gen BOM-Gen is EGALE ULP script to generate complete BOM (bill of materials) document for EAGLE PCB projects. This script generate BOM document as formatted HTML document. Usage Copy bom.ulp file to EAGLE ULP directory. Normally, in Windows operating systems this directory is located at “C:\Program Files\EAGLE-X.X.X\ulp”. Also note that this is an optional step
EAGLE BOM generation script Read More »
Liked how SquareWear 2.0 has so many built-in components and yet so compact in size? Introducing SquareWear Mini — the little sister of SquareWear that has the same capabilities (and more!) but is 25% smaler in size! SquareWear Mini Available for purchase at Rayshobby Shop. So what is SquareWear Mini? Similar to SquareWear 2.0, the
SquareWear Mini chainable color LED matrix and animation design tool Read More »
While I waited for the Mini 7-Segment Clock v3 PCBs to arrive, I got to work on designing an enclosure. First, I exported the PCB from EAGLE to SketchUp. I then assembled a complete 3D model with all the necessary components. With the 3D model complete, I could then design an enclosure to house the
Mini 7-Segment Clock V3 Read More »
The HP 6010A is a monster of a power supply, capable of providing 1kW. There are three limits: 17A, 200V and 1kW – that means that you can source 200V, but only up to 5A. You can suck 17A, but only at up to 60V. I got this one second hand, possibly third or eight
HP 6010A – 1kW power supply Teardown Read More »
