How do I stack a DAC shield between a 4.3 inch LCD Display and an Arduino Mega 2560?

wa6htp

• September 19, 2018 07:46

Hello!  I have an application where I want to display readings from an RF power amplifier I'm building. Voltage inputs will range from 0-50 millivolts to 0-3 volts.  I purchased a Arduino Mega 2560,an LCD 4.3" captive touch screen, and a 24-bit DAC shield.  I assumed I could stack the DAC between the screen and the Arduino Mega, but that turned out to be physically impossible.  I need the 24 bits to deal with the wide range of input voltages, and differential inputs to handle common mode noise.  How can I make this work?  Once I sort that out my next questions will be to ask if anyone can show me how to display the various amplifier parameters on my screen.
Juan@WA6HTP.com

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  Ted M.

  NHD Staff

  • July 29, 2014 18:46

  Take a look at these shield stacking headers to see if they will help give you more spacing:
  
  https://www.amazon.com/Shield-Stacking-Header-Arduino-MEGA/dp/B0756KLNLX

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