Multi_OLED library

Other Hardware Displays
1

I just released an Arduino library which allows you to control multiple I2C OLED displays on multiple I2C buses using my Multi_BitBang library. This means, for example, that you can drive 4 displays which all use the same I2C address using 5 GPIO lines (shared clock lines). You can also drive multiple displays using a single I2C bus if they have unique addresses (or any combination of the above).

Multi_OLED library on Github

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Thanks
Can you advise the memory requirements please?

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For AVRs there isn't much memory to work with, so no backing buffer for doing pixel operations. The lists used to hold the I2C bus, address, etc are defaulting to 8 items each x 4 lists = 32 bytes. The Multi_BitBang library also has to maintain lists and for AVR I use another 7x8 + 7x2 = 70 bytes, so just over 100 bytes of RAM for the 2 libraries together.

4

Gerihatrick:
Thanks
Can you advise the memory requirements please?

I just updated the code for small memory MCUs (AVR) and larger. It now supports line and pixel drawing on MCUs with enough RAM (1K x number of displays) and just fill/text functions on those without. Here's a video of it in action on a nRF52840 Feather (enough RAM to do line drawing):
Youtube Video