DHT11 is one of the most used Temperature and Humidity Sensor. It is cheap, compact and provides a reliable data, it is the best for a DIY electronics project.The DHT11 can measure Temperature between 0 to 50° C with ±2 °C accuracy. It can measure Humidity between 20 to 80% with ±5% accuracy. The sampling rate of DHT11 is...
The HC-SR04 ultrasonic sensor is a distance measuring sensor which is used in many applications like obstacle avoidance robot, Car parking sensors, Sonar, Autonomous robots and many more. The distance measuring range is from 2cm to 4 meters. It is more precise than IR Sensors. Because its measuring capability does not get affected by light and also it can...
IR Proximity sensor is a simple Infrared Sensor which is used to detect obstacles. This is a multipurpose sensor and used in many robotic applications like Obstacle avoidance robot, Line Follower Robot, and any other obstacle detection projects. This is an Active Infrared sensor, it emits and detects its own IR rays. A passive infrared sensor only detects the...
16×2 LCD is an alphanumeric display that can show up to 32 characters on single screen. You can display more characters by scrolling the texts one by one.It can be used with all Microcontroller boards like 8051, AVR, Arduino, PIC, and ARM Microcontrollers.Most projects require an LCD display to communicate with the user in a better way. Some projects...
We have seen how a Matrix keypad works and How to use it with Arduino in the last tutorial. This tutorial explains how to use this keypad with a Buzzer.Let’s connect Arduino with a buzzer and program it to perform this action 'when a particular key press happens the Buzzer will Beep for 1 second. You can also connect a...
A matrix keypad is a small compact input device that accepts user inputs and processed by Microcontrollers. You might have seen this in most commonly used devices like Calculators, Digital locks, Gas pumps and DIY projects. It comes in different types, one of them is membrane keypads, it is thinner in size and you can paste it on top...
Arduino can be programmed using C and C++. Most of its library is written in C++. We will be using Arduino IDE to program it. There are few other IDE also available, but Arduino IDE is built by its creators. In this tutorial, we will see how to get started with Arduino Programming and what are the terms used...
Sonoff is a WiFi controlled switch which is embedded with ESP8266 IC and has relays to control the device via the Internet. This IC can be flashed and reprogrammed by Arduino IDE. The makers of Sonoff published the libraries and Arduino files on their GitHub page. Initially, it has only for Sonoff made boards only, after that it supports...
Arduino Micro is the smallest board of the family, easy to integrate it in everyday objects to make them interactive. The Micro is based on the ATmega32U4 microcontroller featuring a built-in USB which makes the Micro recognizable as a mouse or keyboard.The Micro is developed in conjunction with Adafruit. It has 20 digital input/output pins (of which 7 can be used as...
The Arduino Leonardo is a microcontroller board based on the ATmega32u4. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it...
