Graphics library for NodeMCU (ESP8266), ESP32 and serial+parallel TFT displays

Using Arduino Displays
123

Mac_che:
I think it's related to the touch screen since testing with only touch examples fails.
(XPT2046 touch screen according to the PCB)

I had not noticed Daniel's update to use the touch screen, so that is interesting.

I have a screen with a XPT2046 connected so I tried Paul's library here. The example worked fine on an ESP8266 (NodeMCU) without problems when the pins are setup. Here is the sketch I used:

#include <XPT2046_Touchscreen.h>
#include <SPI.h>

// These are the pins for all ESP8266 boards
#define PIN_D0 16
#define PIN_D1  5
#define PIN_D2  4
#define PIN_D3  0
#define PIN_D4  2
#define PIN_D5 14 // SCLK
#define PIN_D6 12 // MISO
#define PIN_D7 13 // MOSI
#define PIN_D8 15
#define PIN_D9  3
#define PIN_D10 1

#define CS_PIN  PIN_D1 // XPT2046 chip select
#define TFT_CS  PIN_D8 // TFT chip select

XPT2046_Touchscreen ts(CS_PIN);

void setup() {
  Serial.begin(38400);
  digitalWrite(TFT_CS, 1); // Disable TFT for test only
  ts.begin();
  while (!Serial && (millis() <= 1000));
}

void loopB() {
  TS_Point p = ts.getPoint();
  Serial.print("Pressure = ");
  Serial.print(p.z);
  if (ts.touched()) {
    Serial.print(", x = ");
    Serial.print(p.x);
    Serial.print(", y = ");
    Serial.print(p.y);
  }
  Serial.println();
  //  delay(100);
  delay(30);
}

void loop() {
  if (ts.touched()) {
    TS_Point p = ts.getPoint();
    Serial.print("Pressure = ");
    Serial.print(p.z);
    Serial.print(", x = ");
    Serial.print(p.x);
    Serial.print(", y = ");
    Serial.print(p.y);
    delay(30);
    Serial.println();
  }
}

Note that MISO needs to be connected up as well as MOSI. To play safe for the test I have made sure the TFT cannot respond and upset the MISO data by setting TFT chip select high in setup. Don't try amd use the touch IRQ line as that will not work with an ESP8266.