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Ultra-Low-Power Sensor Hub Using nRF24L01 Modules

Presented here is an ATmega328P microcontroller-based ultra-low-power sensor hub using nRF24L01+ radio frequency (RF) transceiver modules having transmitter and receiver units. The transmitter sends humidity...
automation projects

12 Awesome Automation Projects

Automation allows the benefit of automating tasks and minimizing human involvement. This has led to a lot of people working on automation projects, as...
assemble 3D printer

How to Assemble Your Own 3D Printer

3D printing, getting popular for making usable objects, is the reverse of traditional machining where material is removed from a block by drilling, cutting,...
remote controlled robot circuit

Make Your Own Remote Controlled Robot

To control a robot, the signal is usually sent through a wireless system using radio frequency (RF) and infrared (IR). To send an IR...
arduino based robot car circuit

Arduino based Smartphone Controlled Robot Car

Nowadays smartphones can be used to control a host of electrical and electronic devices including motors, music systems and lights. Here we present an...

Increasing Processing Power of DIY and Hobbyist Development Boards

Ever since Arduino came into being, development boards have become a very common tool among engineers trying to design various kinds of circuits. The...

Countdown Timer

Sometimes there is a need to switch on or off electrical appliances or gadgets after a predetermined time. The circuit presented here can switch...
arduino timersvideo

Learning Corner: Arduino Timers

In this video, the presenter will show you how to use the timer of a microcontroller (Arduino Uno -- ATmega328P) to not only create...

Arduino Based Digital Capacitance Meter: An Interrupt Based Approach

Capacitive sensors are widely used to measure various physical and chemical process parameters such as displacement, acceleration, thickness, force, pressure, stress, level and humidity....

Auto-reversible DC Motor with Speed and Rotation Control

DC motors are widely used in different machines, mechanisms and motion controls in manufacturing and processing industries. In these machines, it is often required...

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