Image transfer from Arduino Mega FAR PROGMEM to Arduino Leonardo to HP Prime via Serial and USB HID.
In this video I have an image stored in FAR PROGMEM on the Arduino Mega 2560. The image is in RGB and Resolution is 320x240 pixels. So that is 320x240x3 bytes of data stored in PROGMEM on the Arduino Mega which is 230,400 bytes out of 256k, I had to have room for the program to run too, and the device was almost full.
I then transfer the data to the Arduino Leonardo so that I can transfer it via USB HID protocol to the HP Prime. Initially, when I designed the project, I forgot that there was no Arduino that could communicate via USB and also had 256k of storage, so, to complete the project, I had to use 2 Arduino’s :-).
I think this could possibly run a tiny bit faster, unfortunately, at the Arduino’s full speeds, the HP Prime seems to be the bottle neck.
I will be experimenting with copying data from SD card to HP Prime next.
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