From 299ee1066f15506da34beeba6e90a44891780734 Mon Sep 17 00:00:00 2001
From: Luca Tringali <tringalinvent@libero.it>
Date: Mon, 11 Mar 2019 22:38:22 +0100
Subject: First commit
---
dissolvenza-led-distanza-ultrasuoni.ino | 41 ++++++++++++++++
ethernet-servomotore.ino | 84 +++++++++++++++++++++++++++++++++
scala-led-potenziometro.ino | 55 +++++++++++++++++++++
temperatura-lm35.ino | 15 ++++++
4 files changed, 195 insertions(+)
create mode 100644 dissolvenza-led-distanza-ultrasuoni.ino
create mode 100644 ethernet-servomotore.ino
create mode 100644 scala-led-potenziometro.ino
create mode 100644 temperatura-lm35.ino
diff --git a/dissolvenza-led-distanza-ultrasuoni.ino b/dissolvenza-led-distanza-ultrasuoni.ino
new file mode 100644
index 0000000..a7be908
--- /dev/null
+++ b/dissolvenza-led-distanza-ultrasuoni.ino
@@ -0,0 +1,41 @@
+//HC RS04 Sensore ultrasuoni
+const int triggerPort = 9;
+const int echoPort = 10;
+const int led = 3;
+
+void setup() {
+
+pinMode(triggerPort, OUTPUT);
+pinMode(echoPort, INPUT);
+pinMode(led, OUTPUT);
+Serial.begin(9600);
+}
+
+void loop() {
+
+
+digitalWrite( triggerPort, LOW );
+//invia un impulso di 10microsec su trigger
+digitalWrite( triggerPort, HIGH );
+delayMicroseconds( 10 );
+digitalWrite( triggerPort, LOW );
+
+long durata = pulseIn( echoPort, HIGH );
+
+long distanza = 0.034 * durata / 2;
+
+Serial.print("distanza: ");
+
+//durata in millisecondi
+if( durata > 38000 ){
+Serial.println("Fuori portata ");
+}
+else{
+Serial.print(distanza);
+Serial.println(" cm");
+int fadeValue = map(durata, 0, 38000, 0, 255)
+analogWrite(led, fadeValue);
+}
+
+delay(1000);
+}
diff --git a/ethernet-servomotore.ino b/ethernet-servomotore.ino
new file mode 100644
index 0000000..a4045e3
--- /dev/null
+++ b/ethernet-servomotore.ino
@@ -0,0 +1,84 @@
+#include <SPI.h>
+#include <Ethernet.h>
+
+
+#include <Servo.h>
+
+Servo myservo; // create servo object to control a servo
+int servopin = 3;
+
+byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //physical mac address
+
+char serverName[] = "codice-sorgente.it";
+char serverPage[] = "/UTCTime.php?zone=Europe/Rome";
+EthernetClient client;
+
+//////////////////////
+
+void setup(){
+
+ if (Ethernet.begin(mac) == 0) {
+ Serial.println("Failed to configure Ethernet using DHCP");
+ // no point in carrying on, so do nothing forevermore:
+ while(true);
+ }
+
+ Serial.begin(9600);
+ myservo.attach(servopin);
+ Serial.println("Init");
+}
+
+void loop(){
+ delay(3000);
+ sendGET();
+}
+
+//////////////////////////
+
+void sendGET() //client function to send/receive GET request data.
+{
+ if (client.connect(serverName, 80)) { //starts client connection, checks for connection
+ Serial.println("connected");
+// client.println("GET /ioprogrammo/UTCTime.php HTTP/1.0"); //download text
+ client.print("GET ");
+ client.print(serverPage);
+ client.println(" HTTP/1.0");
+ client.print("Host: ");
+ client.println(serverName);
+ client.println(); //end of get request
+ }
+ else {
+ Serial.println("connection failed"); //error message if no client connect
+ Serial.println();
+ return;
+ }
+
+String response = "";
+ while(client.connected() && !client.available()) delay(1); //waits for data
+ while (client.connected() || client.available()) { //connected or data available
+ char c = client.read(); //gets byte from ethernet buffer
+ response += c;
+ }
+
+ Serial.println(response);
+ int da = response.indexOf("<")+1;
+ int a = response.indexOf(">");
+ String pageValue = response.substring(da,a);
+
+ da = pageValue.indexOf(" ")+1;
+ a = pageValue.indexOf(":",da);
+ String hour = pageValue.substring(da,a);
+ int ora = hour.toInt();
+ int rotazione = map(ora, 0, 23, 0, 180); //può essere 90 invece di 180
+ Serial.print("Writing this value to servo: ");
+ Serial.println(rotazione);
+ myservo.write(rotazione);
+
+ Serial.println();
+ Serial.println("disconnecting.");
+ Serial.println("==================");
+ Serial.println();
+ client.stop(); //stop client
+
+}
+
diff --git a/scala-led-potenziometro.ino b/scala-led-potenziometro.ino
new file mode 100644
index 0000000..62a2d45
--- /dev/null
+++ b/scala-led-potenziometro.ino
@@ -0,0 +1,55 @@
+int potPin = 2; // pin analogico potenziometro
+
+int ledPin1 = 3; //pin dei led
+int ledPin2 = 4;
+int ledPin3 = 5;
+int ledPin4 = 6;
+int ledPin5 = 7;
+
+
+void setup() {
+ pinMode(ledPin1, OUTPUT); // dichiaro i ledPin come OUTPUT
+ pinMode(ledPin2, OUTPUT);
+ pinMode(ledPin3, OUTPUT);
+ pinMode(ledPin4, OUTPUT);
+ pinMode(ledPin5, OUTPUT);
+}
+
+void loop() {
+ int val = 0;
+ val = analogRead(potPin); //inserisco in val il valore del potenziometro
+ int mappedval = 0;
+ mappedval = map(val, 0, 1023, 0, 5); //mappo il valore dall'intervallo 0-1023 a 0-5
+
+ if (mappedval>0) {
+ digitalWrite(ledPin1, HIGH);
+ } else {
+ digitalWrite(ledPin1, LOW);
+ }
+
+ if (mappedval>1) {
+ digitalWrite(ledPin2, HIGH);
+ } else {
+ digitalWrite(ledPin2, LOW);
+ }
+
+ if (mappedval>2) {
+ digitalWrite(ledPin3, HIGH);
+ } else {
+ digitalWrite(ledPin3, LOW);
+ }
+
+ if (mappedval>3) {
+ digitalWrite(ledPin4, HIGH);
+ } else {
+ digitalWrite(ledPin4, LOW);
+ }
+
+ if (mappedval>4) {
+ digitalWrite(ledPin5, HIGH);
+ } else {
+ digitalWrite(ledPin5, LOW);
+ }
+
+}
+
diff --git a/temperatura-lm35.ino b/temperatura-lm35.ino
new file mode 100644
index 0000000..a75cb28
--- /dev/null
+++ b/temperatura-lm35.ino
@@ -0,0 +1,15 @@
+int pin = 1;
+double temp = 0.0;
+
+void setup(){
+ Serial.begin(9600);
+}
+
+void loop(){
+ temp = analogRead(pin)*(500/1023);
+ Serial.print ("Stanza 1: ");
+ Serial.print (temp);
+ Serial.print ("° C");
+ Serial.println();
+ delay(1000);
+}
--
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