MobiFlight Community Support

With the ability to set the address using address jumpers on the I2C boards, why is there a 2 LCD limit?

In case of the used "cache" memory.

A LCD ( e.g. 20x4) needs 80 Bytes for the raw Data information and additional some adress Bytes.
In the past MF Cache was only 96 Bytes overall for everything as i know.... So there was already Problems im Values change fast.

May your right and it would be possible by change some logics to allow this..... But this is not our main concern.

Mobiflight allow to use multiple Megas ( up to 100+ per Computer and thousends via Networks) So we simply say..... If you need more devices, simply connect another controller.
Same reason why we not work on Matrix Inputs and why Shift Registers only come after many years (against my personal opinion)

And finally.... Think about the usecase. People who need MORE then 2 LCD mostly also need a lot of LED/Switches..... So there Project is already a little bigger.
Means..... If you still need 2 Megas ( more then 68 Pins in use) then its just logical to split LCD over multiple Megas, too. No reason to handle 3+ LCD with one Controller (CPU usage) if we can split it over multiple CPU´s individualy.

Last note about LCD.....
Most LCD have a Hardcoded I2C Adress and not support Jumpers. So we need to change Adress by desolder or resolder some bridges.
For myself this is more work as simply connect a new Mega. And i also not need to remember or think about different adresses if i use 1 LCD per Mega overall.