arduino
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Build a Battery Internal Resistance Meter with Arduino and Atmel ATtiny85 IC In an ideal scenario, a battery should have zero internal resistance. But batteries are not made perfect and the electrodes are not 100% conductive, which creates a small resistance within the battery called internal resistance. Practically batteries will always have some internal resistance. On paper, the value of the resistance will appear low around 0.1Ω for… |
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Interfacing TM1637 4 Digit Seven Segment Display Module with Arduino If you are thinking about building your next project around a 4-digit seven-segment display, you need at least 12 connecting pins to drive all the segments properly, that is most of the pins for a microcontroller like Arduino. The workaround for this problem comes in the form of an IC, and as the title of the project suggests it's called TM1673 LED Drive Control. So… |
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Interfacing WS2812B Neopixel LED Strip with Arduino When you require a dynamic lighting solution, LED strips are a great choice. They may be mounted almost anywhere, available in a variety of colours, and require very little maintenance. Finding another lighting system that offers as much value and style would be challenging. And even this standard is raised to a completely new level by… |
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Interfacing TSL25911 Ambient Light Sensor with Arduino Detecting the amount of light in the ambiance is necessary for many areas of our everyday life, and the sensors which can do this are called light sensors, the most primitive light sensor is a humble LDR. But you can find much more advanced types of light sensors being used in automatic lighting systems for smartphones and other smart… |
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Interfacing MAX7219 LED Dot Matrix Display with Arduino When it comes to adding a display to your next project there are many options to choose from like OLED, 16x2 LCD, Seven Segment, and E-Paper Display. But there exists another type of display that I feel is mostly ignored due to the lack of coverage by enthusiasts and hobbyists on the internet. So in this article, we decided to shed some light on this cheap and easy-… |
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Interfacing Dual Axis Joystick Module with Arduino When thinking about the best way to control games, drones, robots, etc, the first control mechanism that comes to our mind will be a joystick. Even though the working principle behind these are very basic, they provide excellent control and degree of resolution in many fields. The application of the Joystick is limitless. We can find… |
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Interfacing RCWL 0516 Microwave Radar Sensor with Arduino Proximity sensing is a common application for intruder alarms, light switches, and other home and industrial automation applications. There are multiple methods of proximity detection used in the electronics industry. The most common method is to use the PIR sensor, which senses the change in ambient infrared radiation caused by a warm body… |
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DIY Digital Distance Measuring Wheel using Rotary Encoder Every engineer and hobbyist nowadays has a workbench for all of their tools and gadgets, and if you're a 3D printing enthusiast, you've probably used the vernier calliper a lot. This emphasizes the significance of precise measurement tools in engineering. After having used many of them throughout our lives, it is now time for us to attempt… |
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Interfacing HPD13A LoRa Module with Arduino to Establish Communication with The Things Network In one of our previous projects, we interfaced SX1278(Ra-02) based LoRa module with Arduino and established communication among them. This was a very simple project and can come in handy for various applications. But what it can't do is establish communication with the internet for modern-day IoT applications. So in this project, we will be using the HPD13A which is… |
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Interfacing SR04T/SR04M Waterproof UltraSonic Sensor with Arduino Uno Adding cameras and vision algorithms to your projects and robots might sound cool but sometimes it becomes expensive in terms of both capital and time. When the task at hand is much simpler like obstacle detection, distance measurement, or depth monitoring, ultrasonic sensors are a great alternate to place your bets on. Not only are these sensors fast… |
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How to Build a 3D Printed Animatronic Eye with Arduino In this project, we are going to build an animatronic eye with Arduino. I got the idea to create an animatronic eye while looking for new project ideas online, and this project immediately caught my attention. First of all, it looks cool and has a simple mechanism and I learned a lot about mechatronics while working on this project. A big shout out to Will Cogley for… |
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Build your own Wireless Stethoscope with Arduino and HC-05 Bluetooth Most heart diseases are associated with and reflected by the sound that the heart produces, and one of the easiest and cheapest ways of diagnosing cardiac dysfunction is by Heart auscultation i.e listening to the heart sound. Now if we are talking about traditional auscultation, that requires experience and good listening skills. That is why in this project we… |
