Add oscilloscope chapter

arduino/I2CPractise/I2CPractise.ino

@@ -24,95 +24,17 @@
 */
 
 #include <Wire.h>
-#include "Chronodot.h"
 
 #define CHRONODOT_ADDRESS 0x68
 
-static uint8_t bcd2bin (uint8_t val) { return val - 6 * (val >> 4); }
-
-// no-cost stream operator as described at
-// http://sundial.org/arduino/?page_id=119
-    template<class T>
-inline Print &operator <<(Print &obj, T arg)
-{ obj.print(arg); return obj; }
-
-    template<class T>
-inline Print &operator >>(Print &obj, T arg)
-{
-    for (unsigned int mask = 0x80; mask; mask >>= 1) {
-        obj.print(mask&arg?'1':'0');
-    }
-    return obj;
-}
-
-    template<class T>
-inline Print &operator +(Print &obj, T arg)
-{ obj.print(arg, HEX); return obj; }
-
 void setup() {
-    Serial.begin(9600);
-
     Wire.begin();
-
-    Serial.println("BEGIN transmission");
-
-    Wire.beginTransmission(CHRONODOT_ADDRESS);
-    Wire.write((byte)0);
-    Wire.endTransmission();
-
-    Wire.requestFrom(CHRONODOT_ADDRESS, 7);
-    byte blah[8];
-    int i;
-    for(i=0; i<8; i++) {
-        blah[i] = Wire.read();
-    }
-
-    Serial.println("END transmission");
-
-    uint8_t ss = bcd2bin(blah[0] & 0x7F);
-    uint8_t mm = bcd2bin(blah[1]);
-    uint8_t hh = bcd2bin(blah[2]);
-    uint8_t d  = bcd2bin(blah[4]);
-    uint8_t m  = bcd2bin(blah[5]);
-    uint16_t y = bcd2bin(blah[6]) + 2000;
-
-    Serial.println();
-    Serial.println("What\tByte\tCorrespondance");
-    Serial.println("------------------------------");
-
-    Serial
-        << "seconds\t" << blah[0]  << "\t" << ss      << "\r\n"
-        << "minutes\t" << blah[1]  << "\t" << mm      << "\r\n"
-        << "hours\t"   << blah[2]  << "\t" << hh      << "\r\n"
-        << "days\t"    << blah[4]  << "\t" << d       << "\r\n"
-        << "months\t"  << blah[5]  << "\t" << m       << "\r\n"
-        << "years\t"   << blah[6]  << "\t" << y       << "\r\n";
-
-    Serial.println();
-    Serial
-        << y  << "-" << m  << "-" << d  << " "
-        << hh << ":" << mm << ":" << ss << "\r\n";
-
-    Serial.println();
-    Serial.println("Address\tDecimal\tBinary");
-    Serial.println("----------------------");
-    Serial + CHRONODOT_ADDRESS << "\t" << CHRONODOT_ADDRESS << "\t" >> CHRONODOT_ADDRESS << "\r\n";
-
-    Serial.println();
-    Serial.println("Byte\tDecimal\tBinary");
-    Serial.println("----------------------");
-
-    Serial
-        << "0\t"  << blah[0]  << "\t" >> blah[0]  << "\r\n"
-        << "1\t"  << blah[1]  << "\t" >> blah[1]  << "\r\n"
-        << "2\t"  << blah[2]  << "\t" >> blah[2]  << "\r\n"
-        << "3\t"  << blah[3]  << "\t" >> blah[3]  << "\r\n"
-        << "4\t"  << blah[4]  << "\t" >> blah[4]  << "\r\n"
-        << "5\t"  << blah[5]  << "\t" >> blah[5]  << "\r\n"
-        << "6\t"  << blah[6]  << "\t" >> blah[6]  << "\r\n"
-        << "7\t"  << blah[7]  << "\t" >> blah[7]  << "\r\n";
 }
 
 void loop() {
-    delay(1000);
+    Wire.beginTransmission(CHRONODOT_ADDRESS);
+    Wire.write((byte)0);
+    //Wire.write((byte)170);
+    //Wire.write((byte)255);
+    Wire.endTransmission();
 }