The DIY-Review section at EG brings you a quick review of some of the latest and interesting DIY/ Project/ Work done by electronics enthusiasts across the globe.
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Who doesn’t get fascinated towards those bizarre optimistic professional LED wall with endless repetitive patterns. Now, if you have some experience in wiring and other technical stuffs, why not take a further step to enhance your professionalism. Well, this tutorial by Adafruit is definitely a savior if you are interested in building a professional LED wall by using a 16x32 RGB LED matrix panels and a bit of patience.
They have used 18 panels to construct a 96x96 pixel display, which measures roughly 2ft square. As you can see that the video decoder boards do all the diligence, therefore all you require is a DVI/HDMI/Displayport
A Casio PT-82 was considered as a classic of Casio 8 bit technology before the famous SK-1 came in market. A LushOne kit can be used to modify simple keyboards. But PT-82 does not has a circuit bend as the SK-1.The useful modifications that can be made are quite limited. The sliding switches can be stripped back to individual components, plastics can be removed from the debris and the springs can be adjusted on the sliding switches.
In one of the tutorials of Lushproject, base can be used to add a filter with LFO input to the cut-off frequency and a ring modulator with second oscillator input to the PT-82.
The usage of low-cost spectrometers becomes mandatory in certain projects. Their consumption in many applications is associated with the relative intensity of different colors There are numerous projects on the internet too that uses compact discs and low-cost CCD detectors from cell phones or webcams to conclude different colors, emitted or absorbed by objects.
But these spectrometers have one large blemish - auto-exposure, where the time taken by the CCD to accumulate light from the sensor is dynamically adjusted. This facility is present in some costly cameras but not in cell phones and webcams. Hence, the comparison between dissimilar spectra intensities becomes challenging and it is impossible to get reliable measurements of intensity out of these instruments.