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Topic: Arduino w/ More than 256k Memory (Read 1 time) previous topic - next topic

djsfantasi

I have a project running on an Arduino Mega 2560, whose sketch uses almost ALL of the 256k memory available. I'm already using PROGMEM to store several k of tables.

Of course, I need to add additional features to the sketch. Is there a hardware option with say 512k of sketch memory? Is there a shield with extra memory? I'm looking, but is there a thread on minimizing program memory?

This is a critical project, so any advice is greatly appreciated in advance.

pert

There are many Arduino boards with 512 kB or more of flash memory.

Here are some of the most popular:
  • Arduino Nano 33 BLE: 1 MB
  • Teensy 3.5: 512 kB
  • Teensy 3.6: 1 MB
  • Teensy 4.0: 1 MB
  • ESP8266: Up to 16 MB, depending on which board model you use (the flash chip is separate from the microcontroller so the board manufacturer decides how much memory to provide).
  • ESP32: Up to 3 MB



Is there a shield with extra memory?
Extra memory, yes. Extra program memory, no.

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