Flexible PCB Contest Round Up

The 2019 Hackaday Prize, which was announced last week, is very much on everyone’s mind, so much so that we’ve already gotten a great response with a lot of really promising early entries. As much as we love that, the Prize isn’t the only show in town, and we’d be …read more

Continue reading Flexible PCB Contest Round Up

Flexible PCB Contest Round Up

The 2019 Hackaday Prize, which was announced last week, is very much on everyone’s mind, so much so that we’ve already gotten a great response with a lot of really promising early entries. As much as we love that, the Prize isn’t the only show in town, and we’d be …read more

Continue reading Flexible PCB Contest Round Up

Design a Coil for a Specific Inductance

YouTuber [RimstarOrg] shows how to make a DIY inductor for a specific inductance. This is obviously a great skill to learn as sometimes your design may call for a very accurate inductance that may be hard to find otherwise.

It may seem daunting when it comes to making your own inductor you may have a few questions such as: What type of core will I use?, How many turns does my coil need? or How do I calculate these parameters to create the specific inductance I desire? [RimstarOrg] goes through all of This, he even has a handy Inductance calculator  …read more

Continue reading Design a Coil for a Specific Inductance

Suddenly, Wireless Power Transmission Is Everywhere

Wireless power transfer exists right now, but it’s not as cool as Tesla’s Wardenclyffe tower and it’s not as stupid as an OSHA-unapproved ultrasonic power transfer system. Wireless power transfer today is a Qi charger for your phone. It’s low power – just a few amps — and very short range. This makes sense; after all, we’re dealing with the inverse square law here, and wireless power transfer isn’t very efficient.

Now, suddenly, we can transfer nearly two kilowatts wirelessly to electronic baubles scattered all over a room. It’s a project from Disney Research, it’s coming out of Columbia University,  …read more

Continue reading Suddenly, Wireless Power Transmission Is Everywhere