Example how to use AD7190 with ESP32 board. It's been tested with AD7190 strain acquisition module: https://github.com/gism/ESP32_AD7190/blob/main/Documentation/AD7190_Test_Board.pdf
Conection as follows:
AD7190 board -- ESP32 board
GND -- GND
SCLK -- GPIO14
DIN -- GPIO13 (MISO)
SYNC -- Not connected
DOUT/RDY -- GPIO12 (MOSI)
CS -- GPIO15
VIN -- 3V3