Fresh hacks every day
Since his string bass player isn’t always around [Antoine] built his own electric bass stand-in using the pedals from an old organ. The project — which he calls the Organ Donor — was inspired by a similar standalone organ pedal bass project. That instrument was built using a 555 timer to generate the sound. But [Antoine] has a … Read the rest
A couple of Harvard researchers have developed a method of using digital barometers as a touch sensor. The good news for us is that they’ve open sourced the project, including Eagle board files, firmware, and details about the materials they used.
The digital barometers were chosen for their characteristics, availability, and low-cost. The sensor uses an array of Freescale … Read the rest
Let’s say you need a way to make a project wireless, but don’t have the scratch for a ZigBee or its ilk. You could use IR, but that has a limited range and can only work within a line of sight of the receiver. [Camilo] sent in a project (Spanish, translation) to connect two devices via a wireless serial … Read the rest
[Viktor's] washing machine did a good job of cleaning his clothes, but it kept a bit too quiet about it. The machine doesn’t have an audible alert to let him know the cycle has finished. He decided to build his own alarm which can just be slapped on the side of the machine.
You can see that a couple of … Read the rest
[Camilo] built a spectrum analyzer to use with his audio system (translate). The hardware is quite simple, using an op-amp, microcontroller and LCD display. He chose an LMV324M low-voltage op-amp which connects to the incoming audio signal and feeds its output to the microcontroller’s ADC. In this case, he chose a Freescale microcontroller from the HCS08 family which … Read the rest
Here is yet another development board to add to your list (If you are into keeping lists), introducing the Firebird32. There seems to be no end to the production of new development boards, following the current style the Firebird32 comes in the familiar Arduino form factor to fit all of your Arduino shields.
The Firebird32 from [Wytec] is build … Read the rest
Throw down your mad skills and you might win some cash while you’re at it. [Zeta] tipped us off that Freescale just announced a new challenge. They call it the Make It Challenge and it centers around their 32-bit Kinetis microcontrollers. These are ARM Cortex-M4 chips and if you’re selected to compete they’ll offer their development hardware at a … Read the rest
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