LDR Based DC Motor Speed Control

A light-dependent resistor (LDR) whose resistance is inversely proportional to the intensity of light is often used as a sensor in electronic projects that involve the use of light. This LDR based DC motor speed control project uses an LDR to control the speed of a DC motor. The objective of this project is to see how much faster the motor moves when a hand is brought closer to it. This circuit could be ver ...

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Make Your Own Power Meter/Logger

In this project I will show you how I combined an Arduino, an INA219 power monitor IC, an OLED LCD and a Micro SD Card PCB in order to create a power meter/logger that has more functions than the popular USB Power Meter. Let's get started! Step 1: Watch the Video! The video gives you a good overview on how to create your own power meter. In the next steps though I will present you some additional informatio ...

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IoT-Enabled Air Pollution Meter With Digital Dashboard On Smartphone

Presented here is a IoT enabled air pollution meter to monitor air quality on your smartphone using Blynk application and Arduino board. Blynk is an Internet of Things (IoT) platform to control Arduino, Raspberry Pi and the like over the Internet. In this project Blynk provides a digital dashboard on your smartphone that displays real-time air quality readings for the immediate surroundings. Blynk is not me ...

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LC-04 4 Channel Logic Converter 3.3V – 5.0V

If you have ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be. The LC-04 bi-directional logic level converter is a small device that safely steps down 5V signal to 3.3V and steps up 3.3V to 5V at the same time. In this instructable, mybotic explained the procedure to use the LC-04 bi-directional logic converter. Description: The LC-04 module offers bi-directional shifti ...

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Load switch with self-resetting circuit breaker

The simple current-limiting load switch shown in Figure 1 will be familiar to most readers. In this circuit, a high level signal applied to the input switches on MOSFET Q2, which energizes the load. The load current is limited by negative feedback applied via Q1. In most applications, the current flowing via R2 into Q1's base will be very small compared to the load current IL, so the voltage VCS developed a ...

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New Arduino Education Science Kit launched by Google and Arduino

Google and Arduino have joined forces to launch a new Arduino Education Science Kit designed for students between the ages of 11 and 14. The new Arduino kit has been created to provide a hands-on experience allowing them to explore forces, motion, and conductivity. The Arduino Science Kit Physics Lab supplant in a hard case together with a MKR WiFi 1010 and all the parts needed to assemble and carry out the ...

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Controlling A Robotic Car Through MATLAB GUI

This project presents the implementation of a MATLAB based graphical user interface (GUI) to control the movement of a robotic car. The commands to move the car in forward, reverse, right and left directions are sent from the GUI and processed by Arduino Uno board mounted on top of the car. Authors’ prototype is shown in Fig. 1.     MATLAB GUI based robotic car Circuit and working In this project, ...

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Arduino Beginner’s Course Lesson 5– Installing and Using Libraries

You can download our e-book ‘Learn Arduino’ from this link Libraries are an essential part in the Arduino world. They are what makes Arduino so easy to use. Libraries are written to encapsulate complex functions and expose them as simple function calls to the user. For example to switch a pixel on and off in an LED monitor. This is relatively very complex but, fortunately some folks at Adafruit created a li ...

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Arduino Pilot Remote Control Has Range Up to 1500 Meters

Schindler Technologies is "a group of highly skilled aerospace engineers, PCB designers and tinkerers who love constructing Arduino projects." The group developed a Pilot Remote Control that has the look and feel of an RC controller, able to control Arduino projects from a distance of 1500 meters. The project is running a Kickstarter campaign to fund initial components. The controller is built around the NR ...

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Mini Arduino DIY CNC drawing machine

Makers and Arduino enthusiasts looking for a new project to keep them busy this weekend may be interested in a new DIY CNC drawing machine created by Mr Innovative. The tiny CNC plotter uses an Arduino Nano and two L293D ICs mounted to a custom PCB. Which have been translated into the proper format via Inkscape and Processing for your convenience. Watch the demonstration video below to learn more about how ...

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Chemical Wireless Communication Without Electronics

Researchers at Stanford University have just invented a revolutionary way of communication. They are replacing the conventional way of wiring, wireless, radio and Bluetooth connectivity using chemicals that can be found in every house. Nariman Farsad, now a postdoctoral fellow at Stanford, had built the first ever experimental chemical texting system in York University, which used vodka to send its messages ...

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Explore electronics with this Arduino Uno starter kit and course bundle

From smart speakers to connected thermostats, the Internet of Things is pretty amazing. But how do these devices actually work? The Arduino Uno Ultimate Starter Kit & Course Bundle lets you explore this topic through fun weekend projects. The bundle includes your very own microcontroller, accessories and 16 hours of video tutorials. You can get it now for just $51.99 at the PopSci Sh ...

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