Monthly Archives: November 2015

Synchronizing Analog Wave Ceptor Clock With My Own Time Signal


Analog clock is a wave ceptor type. But in Sri Lanka, radio frequency time signal isn’t available. So I’ve  generated my own time signal to synchronize the analog clock with my other digital clocks. As you could see in the … Continue reading

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Precision Industrial Digital Clocks.


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Accurate Digital Vernier Caliper.


For every hobbyist who’s in to electronics, must have a vernier caliper. Most of the best brands are over expensive. There are cheap ones but then the accuracy is a question… Then I found the GUANGLU brand and bought 6″ … Continue reading

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New Website Launched.


I have upgrade my company website and gave it a new fresh active look. OptoElectronics.LK OptoElectronics.COM.LK  

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ADTECH QS7AA020M Servo Driver Repair.


ADTECH QS7AA020M is the X axis servo driver for the custom built CNC Lathe machine. Few months back this driver just stop working. And then I did quick reverse engineering thing. Problem was its SMPS ic TOP244YN is in thermal … Continue reading

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Prototyping Project – Harvesting Solar Energy


From this small project I want to gather some data about how much energy I could harvest all through the day. I have use 2 solar cells and each can produce 25W so the final power would be 50W. Both … Continue reading

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Precision Digital Clock – 5 Inch Single Side


Display type – 7-Segment Digit Height – 5 Inch Input voltage – 230VAC Best for industrial use.

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