I'm currently struggling interfacing an SPI device using just 3 pins (CLK, DATA, NSS).
Wiring up? Connecting MOSI/MISO together?
How do i read since it's half duplex?
In ESP32 there are flags which can be set (SPI_TRANS_USE_RXDATA, SPI_TRANS_USE_TXDATA). How can i accomplish this in the Arduino environment? i didn't see a such option and the API seems a little bit limited.
Thanks for any advice.