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The circuit presented here uses a joystick to control a robot. A joystick is more comfortable to use and accurate to control a robot as compared to switches. The circuit is simple, compact and low-cost. It uses two ATtiny13A (eight-pin)...
The idea of buying a TFMini LiDAR was to build a radar but for many days nothing really got kicked off and then one day while handling the long ERW pipes for the assembly line up of ash slurry...
This is an automatic liquid vending machine based on radio-frequency identification (RFID) system. A fixed amount of liquid can be dispensed by swiping an RFID tag across the RFID reader. An alphanumeric LCD is used to display the operation...
After the success of the hydel plant telemetry project at less than INR 10K my boss thought why don’t I take up a similar project for the 16 MW solar field! The solar field has a total 16MW PV...
This simple circuit can be used to light a small area at night. It is useful as a nifty bedroom night lamp, but it can also be used for other applications. The circuit is versatile and fully-automatic but draws...
This is a two-in-one project to control a robot in four directions (forwards, backwards, right and left) either by clapping or through simple gestures. It basically explains how a robot can be controlled using sound or gesture. A switch is...
In this project, an Android application is developed to control light animations using six different LED chasing patterns. Additionally, blinking speed of LEDs is also controlled from the smartphone using fast, moderate and slow buttons on the app. The...
Digital compass and protractor are two of the most basic tools for specifying directions and measuring angles. But sometimes it is difficult to get accurate angle measurement for certain structures and geometrical shapes using these traditional tools, for example,...
The circuit presented here uses a crystal oscillator and frequency multiplier to generate a highly-stable carrier signal frequency of 96MHz. With 40mW of RF output, it can be used to transmit voice or music up to hundred metres. The circuit...
Gadgets like electronic toys and musical players commonly use 1.2V rechargeable batteries in capacities ranging from 200mAh to 2800mAh, which need to be charged and maintained regularly. Here we present a simple and low-cost device that can charge or discharge...