Lately, I think due that new epapers have big buffers, Waveshare and Gooddisplay have a 16 data bus epaper I guess to receive 2 bytes at a time. All other logic seems to be the same except of this double parallel buffer.
My intention is to analyze if it would be possible to use ESP32-S2 (Since we would've more GPIOs and extended RAM support) to drive this epapers.
I've already read the ESP-IDF documentation about I2S where it mentions:
But I'm not sure if it will be possible to use more than 8 GPIOs for parallel communication or it's like I will have to use two I2S instead. Can someone with experience in this matters explain to me if that is a possibility?The I2S peripherals also support LCD mode for communicating data over a parallel bus, as used by some LCD displays and camera modules. LCD mode has the following operational modes:
LCD master transmitting mode
Camera slave receiving mode
ADC/DAC mode
If it's only possible using two I2S then my idea won't work since the ESP32-S2 has only 1 I2S (Please correct me if I'm wrong)