3D Printers & Endstops
With the start of a new year, I wanted to share more thoughts on Endstops! How to construct an endstop myself? This is by far the most common question I hear from 3DP tyros. So […]
How to Modify a Fake/Dummy CCTV Camera
I got an assortment of fake/dummy security cameras a while ago. The cheapo batch was made in China, and later marked with a brand, perhaps by the importer or distributor in India. Anyway, they are […]
Radar Light Bulbs & Random Views
When it comes to ways to reduce energy consumption there are many changes that you can make to your own home that have additional benefits for you. Note that reducing electricity consumption is just one […]
LED Strobe Primer – Part 1
Certainly, I’m not going to share something about constructing your own strobe for use in discotheques. Let me make little headway against the topic – LED strobes! Strobing? Yes, Strobing! Note that with the help […]
Photoelectric Light Sensor
It’s rather ridiculous to think how cheap you can get light sensor modules today. Sure, you’ll get those by online for a couple of coins! Most Chinese light sensor modules have a photo resistor or […]
Triac AC Dimmer/Speed Regulator – Random Thoughts
I made a little purchase in the midway of December, and there’s a nice packet waiting for me when I got home from Xmas holidays – A couple of AC230V/2000W light dimmer/speed regulator modules! The […]
RPM & Infrared Tach – Rough Realities!
Governing the speed of a motor is very important in many situations especially in mechatronics. By measuring the speed of a motor, we can then adjust the motor’s speed to exactly what we want. Along […]
Mini Pocket Weight Scale Hack
I’ve a few mini pocket weight scales. What I love about the cheap device is that it uses a pretty little load cell. When a scale get worn out, perhaps you can reuse its 4-wire […]
How To Use MQ-135 Gas Sensor
A Gas sensor serves to detect and measure the concentration of gas in the environment. Nowadays you can find many different types of easy to use gas sensors, especially in MQ series. In this article, […]
A Junk box 555 PWM Generator
Often you’ll need a simple pulse width modulation generator circuit to test or run small dc lamps and motors in your electronics projects. There’re ways of creating cheap and practical circuits at home, and today […]