In this project we are going to construct an air pollution meter using MQ-135 sensor and arduino. The pollution level in the air is indicated by series of 12 LED. […]
GSM Fire SMS Alert Project
In this article we are going to construct a GSM fire alert circuit system using Arduino and DHT11 sensor, which will alert the user via text message (SMS), regarding a […]
How to Send and Receive SMS Using GSM Modem
In this article we are going to learn, how to send and receive SMS using GSM modem which is controlled by Arduino. Let us see, what GSM modem is, how […]
Password Security Lock Circuit Using 4×4 Keypad and Arduino
In this post we are going to construct a password security lock circuit, which can be accessed by a 6-digit password. To be more precise it is alpha numeric password. […]
How to Interface 4×4 Keypad with Arduino
In this post we are going to learn how to interface a 4×4 keypad with Arduino. We are going to see what is a keypad, how it is constructed and […]
How to Make a Simple Math Calculator using Arduino
In this post, we are going to construct a calculator using Arduino, which can perform far complex arithmetical calculation than an ordinary calculator. The motto of this post is not […]