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DIY Reviews

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.

If you would like to share your DIY/ project /work with EG community or recommend us something you have recently read and feel apt for this section please drop us the link here. Our teams would love to review your work.

Latest Reviews

Modifying Casio PT82A 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.

low cost laser cut colorimeterThe 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.

Axidraw - personal writing and drawing machineAxiDraw is the product of Evil Mad Scientist, which is a versatile pen plotter. This product holds the capability of writing or drawing on almost any flat surface with any writing implements to handle boundless diversity of applications. Its exclusive design sorts a writing head that spreads beyond the machine and allows drawing on objects larger than the machine itself.

This exceptionally resourceful device is designed to assist a varied range of specialized drawing and writing requirements on daily basis.