From 2c34e4538113d73c669d12c6a4e5bcf4a2dd97c0 Mon Sep 17 00:00:00 2001
From: cybergibbons <cybergibbons@gmail.com>
Date: Mon, 24 Feb 2014 11:39:14 +0000
Subject: [PATCH] Three example sketches

---
 .../DallasTemperature/DallasTemperature.ino   | 61 +++++++++++++++++++
 examples/I2C_Scanner/I2C_Scanner.ino          | 52 ++++++++++++++++
 examples/Scan_1Wire_Bus/Scan_1Wire_Bus.ino    | 61 +++++++++++++++++++
 3 files changed, 174 insertions(+)
 create mode 100644 examples/DallasTemperature/DallasTemperature.ino
 create mode 100644 examples/I2C_Scanner/I2C_Scanner.ino
 create mode 100644 examples/Scan_1Wire_Bus/Scan_1Wire_Bus.ino

diff --git a/examples/DallasTemperature/DallasTemperature.ino b/examples/DallasTemperature/DallasTemperature.ino
new file mode 100644
index 0000000..0c6b472
--- /dev/null
+++ b/examples/DallasTemperature/DallasTemperature.ino
@@ -0,0 +1,61 @@
+#include <Wire.h>
+#include <OneWire.h>
+
+OneWire oneWire;
+
+void printAddress(uint8_t deviceAddress[8])
+{
+  Serial.print("{ ");
+  for (uint8_t i = 0; i < 8; i++)
+  {
+    // zero pad the address if necessary
+    Serial.print("0x");
+    if (deviceAddress[i] < 16) Serial.print("0");
+    Serial.print(deviceAddress[i], HEX);
+    if (i<7) Serial.print(", ");
+    
+  }
+  Serial.print(" }");
+}
+
+void setup()
+{
+  Serial.begin(9600);
+}
+
+void loop()
+{
+  Serial.println("Checking for I2C devices...:");
+  if (oneWire.checkPresence())
+  {
+    Serial.println("DS2482-100 present");
+    
+    oneWire.deviceReset();
+    
+    Serial.println("\tChecking for 1-Wire devices...");
+    if (oneWire.wireReset())
+    {
+      Serial.println("\tDevices present on 1-Wire bus");
+      
+      uint8_t currAddress[8];
+      
+      Serial.println("\t\tSearching 1-Wire bus...");
+      
+      while (oneWire.wireSearch(currAddress))
+      {
+        Serial.print("\t\t\tFound device: ");
+        printAddress(currAddress);
+        Serial.println();
+      }
+      
+      oneWire.wireResetSearch();
+      
+    }
+    else
+      Serial.println("No devices on 1-Wire bus");
+  }
+  else
+    Serial.println("No DS2482-100 present");
+    
+  delay(5000);
+}
diff --git a/examples/I2C_Scanner/I2C_Scanner.ino b/examples/I2C_Scanner/I2C_Scanner.ino
new file mode 100644
index 0000000..d73b0ba
--- /dev/null
+++ b/examples/I2C_Scanner/I2C_Scanner.ino
@@ -0,0 +1,52 @@
+#include <Wire.h>
+
+void setup()
+{
+  Wire.begin();
+
+  Serial.begin(9600);
+  Serial.println("\nI2C Scanner");
+}
+
+
+void loop()
+{
+  byte error, address;
+  int nDevices;
+
+  Serial.println("Scanning...");
+
+  nDevices = 0;
+  for(address = 1; address < 127; address++ ) 
+  {
+    // The i2c_scanner uses the return value of
+    // the Write.endTransmisstion to see if
+    // a device did acknowledge to the address.
+    Wire.beginTransmission(address);
+    error = Wire.endTransmission();
+
+    if (error == 0)
+    {
+      Serial.print("I2C device found at address 0x");
+      if (address<16) 
+        Serial.print("0");
+      Serial.print(address,HEX);
+      Serial.println("  !");
+
+      nDevices++;
+    }
+    else if (error==4) 
+    {
+      Serial.print("Unknow error at address 0x");
+      if (address<16) 
+        Serial.print("0");
+      Serial.println(address,HEX);
+    }    
+  }
+  if (nDevices == 0)
+    Serial.println("No I2C devices found\n");
+  else
+    Serial.println("done\n");
+
+  delay(5000);           // wait 5 seconds for next scan
+}
diff --git a/examples/Scan_1Wire_Bus/Scan_1Wire_Bus.ino b/examples/Scan_1Wire_Bus/Scan_1Wire_Bus.ino
new file mode 100644
index 0000000..f8fc87a
--- /dev/null
+++ b/examples/Scan_1Wire_Bus/Scan_1Wire_Bus.ino
@@ -0,0 +1,61 @@
+#include <Wire.h>
+#include <OneWire.h>
+
+OneWire oneWire;
+
+void printAddress(uint8_t deviceAddress[8])
+{
+  Serial.print("{ ");
+  for (uint8_t i = 0; i < 8; i++)
+  {
+    // zero pad the address if necessary
+    Serial.print("0x");
+    if (deviceAddress[i] < 16) Serial.print("0");
+    Serial.print(deviceAddress[i], HEX);
+    if (i<7) Serial.print(", ");
+    
+  }
+  Serial.print(" }");
+}
+
+void setup()
+{
+  Serial.begin(9600);
+}
+
+void loop()
+{
+  Serial.println("Checking for I2C devices...:");
+  if (oneWire.checkPresence())
+  {
+    Serial.println("DS2482-100 present");
+    
+    oneWire.deviceReset();
+    
+    Serial.println("\tChecking for 1-Wire devices...");
+    if (oneWire.wireReset())
+    {
+      Serial.println("\tDevices present on 1-Wire bus");
+      
+      uint8_t currAddress[8];
+      
+      Serial.println("\t\tSearching 1-Wire bus...");
+      
+      while (oneWire.wireSearch(currAddress))
+      {
+        Serial.print("\t\t\tFound device: ");
+        printAddress(currAddress);
+        Serial.println();
+      }
+      
+      oneWire.wireResetSearch();
+      
+    }
+    else
+      Serial.println("\tNo devices on 1-Wire bus");
+  }
+  else
+    Serial.println("No DS2482-100 present");
+    
+  delay(5000);
+}