The rise of the ESP8266 WiFi chip was almost overnight with Espressif’s open approach and pushing from Hackaday. While no ground-breaking product has yet emerged, the development on the chip are phenomenon. However due to an unknown reason the ESP8266 modules manufacture seems to prefer non-standard 2.0mm pitch connector, which gives a lot of headache […]
ESP8266 breadboard adapter and I’m on Tindie Continue Reading
PIR sensors are widely used in motion detecting devices. This article is about interfacing a PIR sensor to 8051 microcontroller. A practical intruder alarm system using PIR sensor and 8051 microcontroller is also included at the end of this article. Before going in to the core of the article, let’s have a look at the
Interfacing PIR sensor to 8051 Continue Reading
A team of Michigan State University (MSU) researchers has created a transparent solar concentrator able to turn any window (or other sheet of glass, such as the screen for a smartphone) into a photovoltaic solar cell. What makes this development different? The panel is truly transparent. Earlier attempts at building transparent solar cells resulted in
See-through solar concentrator harvests energy from sunlight Continue Reading
Classic push-button switches are favorite for many decades, maybe also because they´re well known already from the beginnings of electronics. Probably, a nostalgia is not the only reason making them popular, but mainly an easy control, when even an unacquainted person knows, that it´s something “what has to be pushed” to change a status of
Marquardt 1841 – above standard classics Continue Reading
A team of researchers at the University of California, Los Angeles have designed a relatively low-cost smartphone add-on device that turns it into a mobile DNA imaging tool. Techniques using optical microscopy have found numerous applications in biology, chemistry and physics but they require relatively expensive, bulky and complicated instruments that cannot be easily transported
Smartphone Becomes DNA diagnostic tool Continue Reading
In the last ten years, the technology for manufacturing lightweight, flexible PCBs has made huge progress. Lightweight flex circuits are usually associated with materials like Kapton. The use of those materials is typically limited to high-value applications due to price. Fast forward to 2015, and the landscape has changed dramatically. Printed electronics makes the news
PCB future is lightweight, low-cost, and flexible: Product how-to Continue Reading
The DIY soldering robot which we have been building in our spare time over the past few months is now working and we have been able to solder some test Raspberry Pi expansion board headers with the machine. Before starting on this robot we looked at the various commercial soldering systems that are available. Wave
DIY Soldering Robot Project Completed Continue Reading
As we know, a relay is a very versatile component, able to realize also various “sequential” circuits, when for example by switching one relay we´ll switch on a target device and at the same time we´ll enable (or disable) switching of another relay. In these case, it´s an often demand for a relay to have
Multi-pole industrial relays provide more possibilities Continue Reading
Features Silent Switcher® Architecture Ultralow EMI/EMC Emissions Spread Spectrum Frequency Modulation High Efficiency at High Frequency Up to 96% Efficiency at 1MHz Up to 95% Efficiency at 2MHz Wide Input Voltage Range: 3.4V to 42V 5A Maximum Continuous Output, 7A Peak Transient Output Ultralow Quiescent Current Burst Mode® Operation 2.5μA IQ Regulating 12VIN to 3.3VOUT Output
Buzz..Buzzzz..buzzzzzzzz .. That is how a lone mosquito irritates you in the middle of the night trying to convince you that his lullaby is helpful. Insignificant or not, But truly that is the underlying inspiration for this project. The Mosquito repellents have this obnoxious smell that I would not like to sleep in and these
