Newhaven Display Forum

Share with us => Customer Projects => Topic started by: wa6htp on September 17, 2018, 02:34:53 PM

Title: How do I stack a DAC shield between a 4.3" LCD Display and an Arduino Mega 2560?
Post by: wa6htp on September 17, 2018, 02:34:53 PM
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
Title: Re: How do I stack a DAC shield between a 4.3" LCD Display and an Arduino Mega 2560?
Post by: Ted_M on September 19, 2018, 09:14:45 AM
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 (https://www.amazon.com/Shield-Stacking-Header-Arduino-MEGA/dp/B0756KLNLX)