// Archived example from my Week 11 page. Physical verification is pending.
#include <Wire.h>
#define TOUCH_PIN D9
#define RECEIVER 0x08

void setup() {
  Wire.begin();              // join the bus as the controller
  pinMode(TOUCH_PIN, INPUT);
}

void loop() {
  byte msg = digitalRead(TOUCH_PIN);  // 1 = touched, 0 = not
  Wire.beginTransmission(RECEIVER);
  Wire.write(msg);
  Wire.endTransmission();
  delay(100);
}