Category: Test/Measurements

Jean-Claude wanted to read SMA solar inverter data over Bluetooth and so he build this project. This is the first post of a 3-part series about reading out an SMA solar inverter over Bluetooth and displaying some readings every few seconds. Long-time readers may remember the Solar at...

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

Muris @ elektronika.ba tipped us with his latest project. It's a revision of their single channel loop detector published some time ago and it come with some nice features. There are two PCB versions available, one is a standalone version (PCB v1.2) with DIPs and relays on board and...

Microchip recently developed a precision power-and-energy-monitoring chip - PAC1934. The PAC1934 is a four channel power/energy monitor with current sensor amplifier and bus voltage monitors that feed high-resolution ADC. It works in conjunction with a Microchip software driver that is...

Author: Maurizio Di Paolo Emilio IkaScope is a wireless oscilloscope probe that allows to observe the change of electrical signals over time. The probe is a handheld device, portable and fits perfectly in the hand and pocket. By using high-speed Wi-Fi connection, IkaScope wireless...

For kids and adults with food allergies, having meals from restaurants or hotels can sometimes be very risky. Even when ultimate care is taken, freshly prepared meals can accidentally become cross-contaminated with an offending food and trigger an allergic reaction. Every year many...

The concept of this board is to build an open, very versatile frequency counter, so it can be used to measure a wide variety of signals. It is designed to be customizable in every possible way. Freq_LF_HF v1.0 board uses the famous AVR microcontroler Atmega328p-AU. This is not the...

Juan Antonio Rubia Mena tipped us with his DIY logic analyzer based on PIC18F2525 @ 32 Mhz. He writes: One of the most useful tools for micro-controller design is the logic analyzer. You can find one for every budget or performance, but lately those based in USB connection to PC have...