Data Sheet

Guide V1.0
Email: [e-mail] Web: www.elecrow.com ---Designed by Elecrow Keen
82
If you have added the library, skip it.
Otherwise, you need to add the LiquidCrystal_I2C to the Arduino library file directory,
otherwise the compiler does not pass. Please refer to ‘How to add library files.docx’.
If the LCD does not display or brightness is not enough, please adjusted the potentiometer.
Language reference
Tips：click on the following name to jump to the web page.
If you fail to open, use the Adobe reader to open this document.
analogRead()
Application effect
When the water level sensor enter water and make it of different height, the LCD will display
different percentage.
Lesson 29: DHT11 experiment
Overview
This is an experiment on temperature and humidity, you will learn the external library files
to simplify the process.
Specification
Please view DHT11-datasheet.pdf.
Path: \Datasheet\ DHT11-datasheet.pdf