Then connect to this window, click anywhere, and a drop down will appear letting you select teh board. The serial messages will be piped to the browser and used to turn the cube from red to pink.
#define BUTTON 35
//this is the right button on the TTGO T1 Display
void setup() {
Serial.begin(115200);
pinMode(BUTTON, INPUT);
}
void loop() {
Serial.print(digitalRead(BUTTON));
delay(100);
}