Category: Test/Measurements

This article describes a simple continuity tester based on an ATtiny85. The tester features a buzzer that sounds to help you determinate the trace continuity. It is designed for checking circuit wiring, or tracing out the tracks on a PCB. According to it's author David Johnson-Davies it...

An ECG patch with HRV monitoring that's open source, affordable, and Wi-Fi/Bluetooth connected. HeartyPatch is a completely open source, single-lead, ECG-HR wearable patch with HRV (Heart Rate Variability) analysis. It is based on the popular ESP32 system-on-a-chip. By using low-cost,...

David Johnson-Davies @ technoblogy.com build a four-channel thermometer that monitors the temperature at four temperature sensors, and gives a continuous readout on a small 128x32 OLED display. It's a useful project for various applications like PSU or PC monitoring. The article...

RIGOL Technologies introduces its new DS2000E Series Oscilloscope, a 200MHz, 2 channel scope that continues RIGOL‘s tradition of combining unmatched capabilities at unprecedented price points to transform the test and measurement industry. The DS2000E is available at either 100MHz or...

Quickly identify radioactive materials with a pocket-sized ion chamber. Built from standard parts for easy manufacture and low cost. by Carlos Garcia Saura: Radioactivity is invisible and can be harmful to life. The goal of this project is to provide a simple device that could prevent...

Blecky @ hackaday.io: MappyDot is a smart ranging sensor which provides system designers with the ability to measure accurate distances on drones and robotic platforms for collision avoidance, area mapping, distance measurement, gesture recognition and motion sensing. The MappyDot...

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,...

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...