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RE: Sailboat Arduino Autopilot, selfbuild, Magnetic- & Wind- and Route-Steering (Part 3)
Wow very serious project. Really cool! :D
As far as I understood you use the Ardunio Mega to calculate everything but you use an extra Ardunio Micro to process the inputs. May i ask why? Is it easier to simulate the inputs this way or are you trying to cut down on processing power?
sure you may ask :)
The Mirco just collects the data, but I need the Mega, because the graphical Output. So to say - I need one byte for each character.
The Arduino Mega has 128kB Flash and 8kB SRAM. This does not sound much, but the Micro and Nano has only 32kB Flash and 2kB SRAM. About 400 Bytes are used by the bootloader, so only 1,6kB are left.
CPU speed is the same on all ... 16MHz
The Mega was used only because on the 128x64 Pixel OLED Display. With a normal LCD 20x4, the program will fit on an Arduino Nano oder Micro
Hey thanks for the answer!
But if you need the Mega for the OLED, why not putting anything on the Mega anyways... :D
yea - well - what I don't like about the Mega is that they used such a huge PCB.
Maybe I find a smaller version of it in the future. Then the handheld part/box of the pilot will be much smaller