ESP32-S2 Pinout

SPI and Buttons < main.h >

#define PIN_NUM_RST     33
#define PIN_NUM_DC      34
#define PIN_NUM_MOSI    35
#define PIN_NUM_CLK     36
#define PIN_NUM_BLK     37
#define PIN_NUM_MISO    -1

#define PIN_NUM_CS1     1
#define PIN_NUM_CS2     2
#define PIN_NUM_CS3     3
#define PIN_NUM_CS4     4
#define PIN_NUM_CS5     5
#define PIN_NUM_CS6     6
#define PIN_NUM_CS7     7
#define PIN_NUM_CS8     8

#define PIN_NUM_BTN     0
#define PIN_NUM_BTA     10
#define PIN_NUM_BTB     11
#define PIN_NUM_BTC     12 
#define PIN_NUM_BTD     13

Raspberry Pi Pico Pinout

SPI Port < ST7735.h>

#define PIN_BLK     21
#define PIN_RST     20
#define PIN_DC      19
#define PIN_SDI     18
#define PIN_SCK     17
#define PIN_CS      16
#define PIN_CS1      16
#define PIN_CS2      15
#define PIN_CS3      14
#define PIN_CS4      13
#define PIN_CS5      12
#define PIN_CS6      11

Buttons < main.h >

#define PIN_BTNA      6
#define PIN_BTNB      7
#define PIN_BTNC      8
#define PIN_BTND      9