Arduino

Karthick S's picture
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Joined: Dec 27, 2016
Arduino
December 30, 2016 - 11:40am

I am developing an arduino project with LCD module, RFID tags and reader, Rover motor cars. I'm using ARDUINO UNO board but I could not able to connect the pins appropriately due to shortage of pins and for different modules same pins are used. How can I solve this problem?

B.Aswinth Raj's picture
Online
Joined: Aug 16, 2016
Use Multiplexers
December 30, 2016 - 8:22pm

Hi Karthick,

If the pins you are running on shortage are just normal I/O pins or Analog pins then you can simply use a Multiplexer. 

You have to select a proper MUX based on your requirement, if they are just normal digital high or low digital MUX will work, but  if you are looking for analog inputs you must use a analog MUX..

Note:

1.If yo have your analog pins free (A0-A7) free on your Arduino then you can also use them as Digital pins.

2. Uno has only one set of Rx/Tx pins, if you want more you can try the software serial librarey.

 

Hope this helps!!