Have you ever wanted to send data from a sensor or project wirelessly? This simple circuit allows you to build your own wireless transceiver using two ICs, a transistor, and two resistors. The IC is from Melexis and uses On-Off Keying modulation and can be battery powered. Here is the circuit. For more detail: DIY Wireless […]
DIY Wireless Data Transceiver Read More »
CoAction Hero: a powerful proto-board with a 120Mhz processor, 1MB filesystem, and built-in OS for tinkerers and engineers alike. CoAction Hero: Feature-Rich, Easy-to-Use, Open Source CoAction Hero is an ARM Cortex-M3 microcontroller board with a built-in operating system (CoActionOS) delivering unprecedented power and ease-of-use to your electronics projects. It includes many of the features you
CoAction Hero: 32-bit Open-Source ARM Cortex-M3 Board Read More »
The Easy Pulse sensor is designed for hobby and educational applications to illustrate the principle of photoplethysmography (PPG) as a non-invasive optical technique for detecting cardio-vascular pulse wave from a fingertip. It uses an infrared light source to illuminate the finger on one side, and a photodetector placed on the other side measures the small variations
Easy Pulse kit: A DIY pulse sensor based on photoplethysmography Read More »
A new PCB design web application was released this last week called PCBWeb. The website states that PCBWeb is a free browser-based CAD application for designing and manufacturing electronics hardware. The tool is currently released in BETA and allows you to create a schematic, full circuit board layout, and then export to gerber format for
PCBWeb – Free Online PCB Design Software Read More »
IDK started out as a discussion one night at a makerspace with the idea of adding some sensory interaction to a video game beyond the usual accelerometer or motion capture input. What ended up evolving from that discussion over the past year is a simple easy to use kit that allows software developers and creative thinkers
Interactive Development Kit Read More »
Testing probes, clips, cables and other products of company SKS enable simpler and more effective testing and development. Probably, you´ve already faced the situation, when it was necessary to measure several signals at once, or for example to have a voltmeter connected in some point of a device and to control another equipment at the
SKS – measuring and testing with pleasure Read More »
Plymouth, England – 8th April 2013 – Plessey announced that samples of its Gallium Nitride (GaN) on silicon LED products (p/n PLW111010) are available today. These entry level products are the first LEDs manufactured on 6-inch GaN on silicon substrates to be commercially available anywhere in the world. Plessey is using its proprietary large diameter
Plessey is first to release GaN on silicon LEDs Read More »
Of the hundreds of projects I’ve shared over the years, none has attracted more attention than my DIY ECG machine on the cheap posted almost 4 years ago. This weekend I re-visited the project and made something I’m excited to share! The original project was immensely popular, my first featured article on Hack-A-Day, and today “ECG”
Simple DIY ECG + Pulse Oximeter (version 2) Read More »
If you´re looking for a reliable and price affordable connectors for memory cards and SIM cards, we have a solution for you. No doubt, that data storage media and SIM cards need a reliable contact. A contact which won´t oxidize either after a long term usage in an outdoor environment. This fact is well known
Attend – reliable workplace for your memory- and SIM cards Read More »
1A DC/DC switch-mode regulators TRACO TSR-1 already found their stable place on the market and they successfully replace inefficient linear regulators. Switch-mode power supplies are still more used in all segments of power supply, to which also belongs a regulation on the side of the load (Point Of Load – POL). Perhaps every designer is
Try the effective replacement for standard 78xx regulators Read More »
