pinout
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Digital Audio Volume Control Circuit using PT2258 IC and Arduino A potentiometer is a mechanical device using which one can set the resistance according to the desired value, thus changing the current passing through it. There exist many applications for a potentiometer, but mostly, a potentiometer is used as a volume controller for audio amplifiers. The digital volume control circuit is an electronic circuit that accurately adjusts… |
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How to Build a DIY Digital Oscilloscope using STM32 Microcontroller An oscilloscope is the one instrument every electronics engineer reaches for when a circuit misbehaves. A multimeter tells you a single number, but an oscilloscope shows how a voltage changes over time: the shape of a PWM signal, the bounce of a switch, or the ripple on a sensor output. Bench oscilloscopes are expensive, though, and the best way to understand how one… |
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Interfacing ADXL345 Accelerometer with Arduino UNO We all know about accelerometers and gyroscopes; they are primarily used to detect acceleration. While an Accelerometer can measure linear acceleration, the gyroscope can help find the rotational acceleration. A gyroscope is used to measure angular velocity, which uses the Earth’s gravity to determine the orientation of the object in motion. There is a sensor like… |
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IoT Based Smart Reminder System Have you ever set an important reminder on your phone only to miss it because the device was in silent mode, left in another room, or buried under tons of notifications? While smartphones have made reminders convenient, they are not always used in every situation, especially for elderly people, students, or professionals with busy schedules.To solve this problem, we… |
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LED Display Board using P10 LED Matrix Display and Arduino Display advertising plays a very important role in marketing, and there are several advertising methods like newspapers, posters, glow signboards, etc.. Still, digital LED display boards are getting popular nowadays because of their reliability and advantages. Although they are a little expensive, they are durable and customizable. P10 LED display boards have… |
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Arduino Sleep Modes and How to use them to Save the Power Power consumption is a critical issue for a device running continuously for a long time without being turned off. So to overcome this problem, almost every controller comes with an Arduino sleep mode, which helps developers to design electronic gadgets for optimal power consumption. Sleep mode puts the device in power-saving mode by turning off the unused module. Whether you… |
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Controlling NEMA 17 Stepper Motor with Arduino and A4988 Stepper Driver Module A stepper motor is a type of DC motor that works in discrete steps and is used everywhere from a surveillance camera to sophisticated robots and machines. NEMA 17 stepper motor provide accurate control and can be differentiated based on torque, steps per revolution, and input voltage. In our previous project, we controlled a 28-BYJ48 stepper motor using Arduino. 28-… |
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IoT based Smart Irrigation System using Soil Moisture Sensor and ESP8266 NodeMCU Most of the farmers use large portions of farming land, and it becomes very difficult to reach and track each corner of the large land. Sometimes there is a possibility of uneven water sprinkles. This results in the bad quality crops, which further leads to financial losses. In this scenario, the Smart Irrigation System using the Latest IoT technology is helpful and leads to… |
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Bluetooth Module Interfacing with ESP8266: Controlling an LED This comprehensive guide shows you how to interface the HC-05 Bluetooth module with the ESP8266 NodeMCU using Arduino IDE. Nowadays, Bluetooth has become an integral part of digital devices, and it comes built-in in most of the devices such as smartphones, laptops, PC, cameras, Watches, Fitness Bands and many more. Bluetooth has always been the dominant protocol in wireless… |
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Lead Acid Battery: Working, Construction and Charging/Discharging Almost every portable and handheld device consists of a battery. The battery is a storage device where energy is stored to provide power whenever needed. There are different types of batteries available in this modern electronics world, among them Lead Acid battery is commonly used for high power supply. Usually Lead Acid batteries are bigger in size with hard and heavy… |
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Automatic Water Dispenser using Arduino This tutorial describes how to make an automatic water dispenser from Arduino and an ultrasonic sensor. This tutorial describes how to make an automatic water dispenser using an electronic diagram, a code snippet, a list of things, and a demonstration of how to make your water dispenser work. Table of Contents Why Build an Automatic Water Dispenser? Components… |
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Simple Smoke Detector Alarm Circuit Smoke Detectors are very useful in detecting smoke or fire in buildings, and so are important safety parameters. In this project, we are going to build a Simple Smoke Detector Circuit without using any Microcontroller. This circuit triggers the Buzzer whenever it detects Smoke or fire nearby. This circuit mainly uses the MQ6 Smoke/Gas sensor to… |
