Fresh hacks every day
Adafruit Industries has just added an Arduino shield footprint to their EagleCAD library. If you don't know, the Arduino headers use non-standard pin spacing. Learn to deal with it, there's too many Arduino shields in production to have any hope for a change in the future. This footprint should make it a lot easier to design your own boards. If you use this package make sure you're getting the … [Read more...]
[Michael] got his hands on a refrigerator that he intended to store beer in but found that it ran constantly. Instead of buying a new thermostat he and his friend [Doug] set out to build an Arduino-based controller for the fridge. The finished project will switch 240v so they've used a transformer to power the logic circuitry and a solid state relay to handle the load switching, with a Dallas … [Read more...]
[Willem] has been using an Arduino to monitor temperatures and electricity usage. For the temperature monitoring he picked up some 1-wire temperature sensors similar to those we've featured in the past. To pick up on electricity usage he's not using an amp sensors, but because he's in the UK he does have a flashing LED on his power meter. There's a known trick to pick up these flashes with a photo … [Read more...]
Here's a Christmas tree project we can get behind. The "tree" itself is made of twisted pairs of insulated copper wire. At the end of each pair a surface mount LED has been soldered between the two conductors. All of the wire limbs converge into a 4x4 matrix. One tree uses a prototyping shield and an Arduino, the other tree is just using an ATtiny2313 microprocessor. Take a look at the … [Read more...]
Hackaday alum [Will O'Brien] cleaned up his messy breadboard with an RGB keylock Arduino shield. You may remember this two-part project from last year. It uses buttons backlit by an RGB LED to operate a door lock. [Will] is still mulling over what type of kit options he will offer. We're happy to see if the most important part, a laser-cut key bezel, will be available. This makes for a … [Read more...]
[Ryanjmclaughlin] came up with the idea of a Arduino shield that uses TRIACs to switch four channels of AC power. The forum thread he started delves into several interesting discussions covering what it would take to convert this for use with 240v power and of course, a debate about safety. A reader named [Victor] sent this tip to us and mentioned that this shield might significantly reduce the … [Read more...]
We've been accused on more than one occasion…okay, pretty much every single day…of harboring some kind of creepy Arduino love affair. The topic does come up an awful lot here, we’re not oblivious to that, and had been patiently waiting for April Fool’s Day to post an article lampooning the whole situation, both ourselves and critics alike, so that everybody could have a good laugh (or … [Read more...]
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