Design 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 ReadingDecoding and Encoding JSON with Arduino or ESP8266
In this blog post you're going to learn how to decode (parse a JSON string) and encode (generate a JSON string) with the ArduinoJson library using the Arduino with the Ethernet shield. This guide also works with the ESP8266 and ESP32 Wi-Fi modules with small changes. Decoding and...
Continue ReadingElectronics Cheat Sheet Poster
A quick reference in learning and debugging your electronics projects. Click to "download" the full resolution image + a bonus poster. or download ZIP file. "Amirhossein Amini" has re-designed the above poster in Corel Draw and the source file can be downloaded here or PDF...
Continue ReadingApp note: Implementation of a single-phase electronic watt-hour meter using the MSP430AFE2xx
Another energy meter from Texas Instruments using MSP430AFE2xx. (PDF) This application report describes the implementation of a single-phase electronic electricity meter using the Texas Instruments MSP430AFE2xx metering processors. It includes the necessary information with regard to...
Continue ReadingWINXI – Arduino ZERO M0 Stick
WINXI - arduino ZERO Pro M0 compatible stick, RGB led, Micro SD, AtSamD21E18. Arduino zero pro compatible board with USB programming suitable for experienced users. WINXI - Arduino ZERO M0 Stick -...
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