RE: Final Week...

shabaz — Tue, 28 Aug 2018 03:55:46 GMT

Hi Rob,

Unless there's an API that will accept the BMP file format (i.e. check the Adafruit library for the RA8875 board - but I'm fairly sure there isn't, I briefly checked the API but I may have missed it, so please double-check yourself, I don't want to mislead - https://github.com/adafruit/Adafruit_RA8875/blob/master/Adafruit_RA8875.h ), you will need to read bytes from within the file and send individual pixel instructions to the RA8875 board. It could take a few seconds to transfer (if you're lucky. It could take longer), depending on the speed of all the elements in the solution and the code. Anyway, maybe that's fine, if this just needs to occur once and the images remain static for a long time.

I don't know what images you wish to show, but if you're in the final week, I also feel the same, that text may be easier.

By the way, what was the issue that needed to be resolved to get both boards working? It could be helpful to know, to help others who try to use these boards.

Personally, if I had to do it with this hardware combination, and had reduced time, then I'd use simple line art (vectors). For instance, to draw a house, could take just a few dozen co-ordinates stored in Flash on the microcontroller, no need to use the SD card. You've already figured out how to draw blue shapes with curves, so line art is much easier.

RE: Final Week...

aspork42 — Tue, 28 Aug 2018 03:33:39 GMT

Glad you were able to get them all going off the Uno. I've never used either of the other two modules, so not really sure where to start. Perhaps you could start by just using text instead of trying to get bitmaps to load. Try to get the most basic functionality working first before making it pretty [View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-253786e0-9266-4e7d-9cfb-9e85b031fc73/contentimage_5F00_1.png:16:16]