24-48V to 5V – 3A DC-DC Converter
24-48V input voltage range 3A output current DC-DC Converter using BD9G341AEFJ IC from ROHM semiconductor. This IC is ideal for high voltage to low voltage converter with 3A output current. Pin configuration of the board with 3 Pin horizontal mounting of the regulator is similar to...
Continue ReadingOwnCloud on Raspberry Pi
Install OwnCloud on Raspberry Pi And make your own cloud server. OwnCloud set on Raspberry Pi can be a good example of smart cloud storage. A cloud storage is a cloud computing model in which the data is stored on remote servers and maintained by a cloud storage service provider. This...
Continue ReadingResearchers Developed New Efficient, Thin, and Flexible Cooling Device
Engineers and scientists from the UCLA Henry Samueli School of Engineering and Applied Science and SRI International, California, have created a thin flexible device that could keep smartphones and laptop computers cool and prevent overheating. The component is based on...
Continue ReadingArduino Two-Way Bluetooth Communication Tutorial
Welcome to another Arduino Tutorial! Today we are going to learn how to use Bluetooth to exchange data between two Arduino boards! As a demonstration project, we are going to build a simple weather station. There is a lot to cover so let’s get started! Arduino Two-Way Bluetooth...
Continue ReadingDesign and Implementation of a 12 Lead Portable ECG
Alex Lao and his team at McMaster University have developed a compact, battery powered, 12-lead electro-cardiogram: During the academic year of 2016-2017 at McMaster University, in conjunction with Dr. DeBruin, Christina Riczu, Thomas Phan and Emilie Corcoran, we developed a compact,...
Continue ReadingHaasoscope – Cheap, flexible, data acquisition for all!
Haasoscope is the first open-source, open-hardware, flexible, small, cheap, oscilloscope and data-acquisition board. You can use the stock firmware for basic oscilloscope functionality, or modify the firmware to customize what the Haasoscope does. Preliminary features and...
Continue ReadingArduino Weather Station using DHT11
Using a display to view the temperature and humidity of your environment can be possible using the DHT11 or DHT22 sensor with the easy to use Arduino microcontroller platform and that’s the goal of this project. For this project, we will be using the 16×2 LCD display module to...
Continue ReadingTeardown, Repair & Analysis of an Agilent E4443A 3Hz – 6.7GHz PSA Series Spectrum Analyzer
In this episode Shahriar repairs an Agilent PSA Series Spectrum Analyzer. The instrument generates many errors during self-alignment and produces no measurements below 3.2GHz. The block diagram of the unit is thoroughly presented and various possible failure points are considered. Based...
Continue Reading