How much app-usable RAM is free in the Feather Huzza? I want to use a SPI-based touch screen, and want to make sure that the CPU has enough free RAM to manipulate the display graphics, as needed.
Has anyone every hooked the Feather Huzza to a 2.8" or larger touch screen? Your thoughts?
Thanks.
Feather Huzza RAM and Touch Screen
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- adafruit2
- Posts: 22148
- Joined: Fri Mar 11, 2005 7:36 pm
Re: Feather Huzza RAM and Touch Screen
i just got the ILI9341 library with 2.8" SPI TFT working,
https://github.com/adafruit/Adafruit_ILI9341
https://en.wikipedia.org/wiki/ESP8266 has RAM details
https://github.com/adafruit/Adafruit_ILI9341
https://en.wikipedia.org/wiki/ESP8266 has RAM details
- cawhitley
- Posts: 4
- Joined: Sun Jan 19, 2014 3:32 am
Re: Feather Huzza RAM and Touch Screen
Thanks for the info. FYI, the display that I will be testing has a ILI9325 chip with it, and their web page provides a link for software examples for Arduino. Since I posted my request, I compiled that software for the ATmega2560, and it yielded a RAM usage of under 300 bytes, so it seems that for the display part (ignoring the SD card attachment part), the RAM usage is not too bad.
http://www.sainsmart.com/sainsmart-2-8- ... ry-pi.html
http://www.sainsmart.com/sainsmart-2-8- ... ry-pi.html
Please be positive and constructive with your questions and comments.