Porting Adafruit STMPE610 resistive touch screen controller

[ScruffR]

I guess this is what I told you in the other thread about TS CS #8 on the silk screen, remember?

Connecting Adafruit 2.8" TFT Touch Shield to a Photon

That link clearly states and on the board you see a silk note TS CS #8 - that’s the SPI chip select for the touch screen. So you only need one extra pin to control the CS pin on the display to actually talk to the touch controler. Here yo can find the wiring info for TFT, resistive TouchScreen & SD Note that the first three pins are always the same (SPI CLK, MOSI, MISO), only the CS pins need to be seperate (and the TFT also wants a D/C pin).