ES ordening

ES/ES assignment 4/ES assignment 3 I2C/Assignment-B/Slave.cpp

@@ -0,0 +1,29 @@
+#include <Arduino.h>
+#include <Wire.h>
+
+volatile uint8_t receivedValue = 0;
+
+void setup() {
+  Wire.begin(0x42); 
+  Wire.onReceive(receiveEvent);
+  Wire.onRequest(requestEvent);
+  Serial.begin(9600);
+}
+
+void loop() {
+}
+
+void receiveEvent(int howMany) {
+  if (howMany > 0) {
+    receivedValue = Wire.read(); 
+    Serial.print("Received from master: ");
+    Serial.println(receivedValue);
+  }
+}
+
+void requestEvent() {
+  uint8_t reply = (receivedValue > 100) ? 2 : 4;
+  Wire.write(reply);
+  Serial.print("Sent to master: ");
+  Serial.println(reply);
+}