Arduino Calculator using 4x4 Keypad
Posted in
In this project tutorial, we will build our own simple calculator using an Arduino and 4×4 keypad and display the result on a 16×2 dot matrix LCD Screen.
In this project we will be using an ultrasonic sensor, buzzer, vibration motor to build a smart blind stick, which can find any object coming towards it and alert the person holding the stick
We need the temperature and humidity measurement to understand the environmental conditions for a given zone. We might use google or any whether pr...