Laser scanning microscopes use a focused laser beam to scan tiny samples down to the sub-cellular level. As such, they are generally available as expensive lab implements. You might also consider that CDs drives – and even more so DVDs and Blu-ray players – must be able to focus laser beams down to incredibly small […]
Bands on through-hole resistors conveniently indicate their value at a glance. On the other hand, you have to actually know the code to interpret this meaning. Alternatively, you could use the Ohmmeter 2.0 — developed by Miguel Alejandro Ramírez Anaya and José Miguel Galeas Merchán from the University of Málaga in Spain. Their Arduino Mega-powered device has […]
Smart speakers are amazing devices, able to answer a near-infinite array of questions, as well as offer a variety of AI services. As shown in this project write-up by Marcelo Rovai, you can emulate a Google Assistant with Raspberry Pi and ReSpeaker 2-Mics Pi HAT, which can be triggered to “wake” and respond to your voice […]
For centuries, hourglass instruments have been used to keep track of a certain amount of time. But while long superseded by other methods, this project by Ty and Gig Builds takes things full circle, creating an electronic version around WS2812B addressable LEDs. The frame takes the form of a sort of 2D wooden hourglass, with RGB strips connected to […]
This article was written by Umberto Baldi, software developer at Arduino. It’s been a while since the last release of the Arduino Create Agent. We tried to give some love to this awesome tool, in order to enhance the experience with the Create ecosystem. Finally, we have a brand new CI/CD pipeline based on GitHub […]
What better way to announce the availability of the Portenta Vision Shield LoRa than at The Things Conference 2021, a global showcase for all the top-notch LoRaWAN products and services? The LoRa® module option of the Portenta Vision Shield is specifically designed for edge ML applications, enabling low-power, long distance communication over LoRa® wireless protocol […]
Kids have wonderful imaginations, and to help students at a primary school have a super time, creator “palladin” was asked to construct a console for them to use. The device features a variety of lights and sci-fi additions, including glowing “reactor” tubes that diffuse light using hair gel and a “memory bank” that emits flashing patterns for […]
Christopher Getschmann wanted a wall-sized map of the world. He soon realized, however, that it’s tough to actually buy such a map that’s both beautiful and detailed enough to satisfy his cartographic tastes. While many would simply move on to the next “thing,” Getschmann instead took things into his own hands, and built a pen […]
Whether granting access to public transit or restricting unauthorized personnel in buildings, NFC card readers can be extremely useful. Although most might not consider how they work – and simply happy getting through a turnstile – there’s a lot going on behind the scenes. In his video, Daniel Raines shows off a pair of prototype […]
While it’s hard to beat analog instruments for instantaneous automotive feedback, Finnish electrical engineering student Jussi Ristiniemi also wanted a digital speed readout on his 2002 Audi TT. His particular model normally uses the car’s controller area network (CAN) to transmit the radio station or CD track to the uppermost section of the digital display. […]
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