Category Archives: Digital Electronics

Microcontroller Projects and Others

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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Precision Industrial Digital Clocks


Left to right – 3″, 4″, & 5″.

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Stylish and Precision Digital Clock – 4 inch


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RS485 Giga Range Wireless Grid for CCTV PTZ Camera System


RS485 Giga Range wireless grid is designed for Systech Solutions Pvt Ltd. (http://www.systech.lk)

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Soldering on a Dotted Board


After a long time I had to solder a small circuit on a Dotted Board.

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Static Backlit LED Custom Signs.


These boards are custom made. And suitable for industrial use. Very sharp and high bright illumination.

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PCB Print 29_07_15


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