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Xinyuan-LilyGO / LilyGo-AMOLED-Series

LilyGo AMOLED Series
MIT License
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Pinout clarification #63

Open Trolomite opened 1 month ago

Trolomite commented 1 month ago

Hi, I'm new with ESP 32 and I'm trying to figure out how to communicate with eternal devices (wired), via I2C or SPI. Ideally SPI. I have the LilyGo T4 S3 display. I'm assuming that there's no SPI available because of the display & SD card slot. Is that correct? If external SPI is not available, how about I2c? which pins do I use for that? It's not very clear from the documents (as a beginner). Any help would be much appreciated.

Thanks

pike2k commented 1 month ago

For I2C you have Qwiic, it's a convenient standard. I have developed a breadboard adapter for T4-S3 that I needed for my project.

T4-S3-2 41_1024x1024

lewisxhe commented 1 month ago

As long as the GPIO port is not used, it can be freely assigned to SPI. Just specify the GPIO Pin during initialization, like this https://github.com/Xinyuan-LilyGO/LilyGo-AMOLED-Series/blob/992ac04edd961a064e8b2f0e512a3810ba33f687/src/LilyGo_AMOLED.cpp#L617

I2C is the same, but you can't conflict with the Wire used in the library, you need to use Wire1.begin(sda,scl) . See the Qwiic example for details

github-actions[bot] commented 1 week ago

This issue is stale because it has been open for 30 days with no activity.