Library functions will reduce the line of codes. In this article we discuss about adding libraries in Arduino IDE.
by Akshay Joseph
In this tutorial discuss about the changing the name of Bluetooth module HC - 05 to any name.
The device beeps when a person or object near less than one meter from you.
Project tutorial by Akshay Joseph
This product disinfects bills and coins, high-contact surfaces, to allow for cash dependent economies to survive in this pandemic.
Project tutorial by Naomi Voglewede and Biswajit Mishra
Introduction to watchdog timer in microcontroller
Project tutorial by Rafi Rasheed T C
Its because you are using some other library for I2C Display. Follow the steps and please don't skip step 3, The library mentioned there. And importantly , to avoid conflict , please remove old library for i2C and then add "Arduino-LiquidCrystal-I2C-library-master" That mentioned step 3 .
There is no error in the code. And also "lcd.begin" function exist. Make sure you are using the exact library that i have mentioned here (Arduino-LiquidCrystal-I2C-library-master) . Refer "Step 3"
The working voltage of HC-05 is 3.3V. Actually that is two boards. HC-05 is attached to the base board. There is a voltage regulator in that baseboard. So we can use 5V in that base board. It'll regulate it to 3.3V and power up HC-05.
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