Frequency Counter using Arduino Uno

Pete Cineema's picture

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Joined: Sep 05, 2016

Replies: 1
Frequency Counter using Arduino Uno
September 5, 2016 - 10:02pm

I'm new to the Arduino and would like to build the Frequency Counter using Arduino (http://circuitdigest.com/microcontroller-projects/arduino-frequency-coun...) which is a great project but I have a few questions:

1 - For the LCD panel the article refers to a related article "Interfacing 16x2 LCD with Arduino (http://circuitdigest.com/microcontroller-projects/arduino-lcd-interfacin...) which shows the LCD part number as: JHD_162ALCD;  I'm in the USA, and I have not been able to source this part at all.  Can anyone provide a source for the part or an alternative equivalent part that would work?  If you can, please provide source name/website and part number.

2 - The first line n the sketch for the Frequency Counter project shows an #include that references "LiquidCrystal.h":  #include <LiquidCrystal.h>

Is the LiquidCrystal.h part of the Arduino IDE or is it a file I have to source from elsewhere?  Can you provide specifics, i.e. where to get the file?  Is that file specific to the JHD_162ALCD LCD or is it required for any LCD?  

Thanks for any assistance!

Aswinth Raj's picture

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Joined: Aug 16, 2016

Replies: 917
LCD availability
September 30, 2016 - 10:32am

Hi Pete,

Sorry for the late reply, hope you are still willing to try out this project.

1. You can follow this page https://www.arduino.cc/en/Tutorial/LiquidCrystalDisplay to get started with LCD Arduino interfacing. You can buy any parallel LCD display (16*2) and let us know about it. We will guide you here, if you get stuck somewhere. 

2. The header file #include <LiquidCrystal.h> is a default header file, you need not worry about it. You can straight away paste the code and complie it. Further you can also try codes from File -> Example -> Liquid crystal