From 8c3efb592b16b672fc353368c04d88d3a32cf1a2 Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@eclectronics.org>
Date: Wed, 18 Jan 2012 18:02:10 +0000
Subject: updated previous demo to Arduino 1.0

---
 .../digital_potentiometer.ino                      | 39 ++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 arduino_libs_1_0/Wire/examples/digital_potentiometer/digital_potentiometer.ino

(limited to 'arduino_libs_1_0/Wire/examples/digital_potentiometer')

diff --git a/arduino_libs_1_0/Wire/examples/digital_potentiometer/digital_potentiometer.ino b/arduino_libs_1_0/Wire/examples/digital_potentiometer/digital_potentiometer.ino
new file mode 100644
index 0000000..38da1c5
--- /dev/null
+++ b/arduino_libs_1_0/Wire/examples/digital_potentiometer/digital_potentiometer.ino
@@ -0,0 +1,39 @@
+// I2C Digital Potentiometer
+// by Nicholas Zambetti <http://www.zambetti.com>
+// and Shawn Bonkowski <http://people.interaction-ivrea.it/s.bonkowski/>
+
+// Demonstrates use of the Wire library
+// Controls AD5171 digital potentiometer via I2C/TWI
+
+// Created 31 March 2006
+
+// This example code is in the public domain.
+
+// This example code is in the public domain.
+
+
+#include <Wire.h>
+
+void setup()
+{
+  Wire.begin(); // join i2c bus (address optional for master)
+}
+
+byte val = 0;
+
+void loop()
+{
+  Wire.beginTransmission(44); // transmit to device #44 (0x2c)
+                              // device address is specified in datasheet
+  Wire.write(byte(0x00));            // sends instruction byte  
+  Wire.write(val);             // sends potentiometer value byte  
+  Wire.endTransmission();     // stop transmitting
+
+  val++;        // increment value
+  if(val == 64) // if reached 64th position (max)
+  {
+    val = 0;    // start over from lowest value
+  }
+  delay(500);
+}
+
-- 
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