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Adding ADXL3xx accelerometer example; minor comment changes.
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@ -56,7 +56,7 @@
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@ -687,6 +687,7 @@
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@ -879,13 +880,13 @@
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@ -912,7 +913,7 @@
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47
build/shared/dist/examples/Analog/ADXL3xx/ADXL3xx.pde
vendored
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47
build/shared/dist/examples/Analog/ADXL3xx/ADXL3xx.pde
vendored
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@ -0,0 +1,47 @@
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// ADXL3xx
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//
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// Reads an Analog Devices ADXL3xx accelerometer and communicates the
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// acceleration to the computer. The pins used are designed to be easily
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// compatible with the breakout boards from Sparkfun, available from:
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// http://www.sparkfun.com/commerce/categories.php?c=80
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//
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// http://www.arduino.cc/en/Tutorial/ADXL3xx
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// Breakout Board Pinout
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// 0: self test
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// 1: z-axis
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// 2: y-axis
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// 3: x-axis
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// 4: ground
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// 5: vcc
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int groundpin = 18; // analog input pin 4
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int powerpin = 19; // analog input pin 5
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int xpin = 3; // x-axis of the accelerometer
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int ypin = 2; // y-axis
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int zpin = 1; // z-axis (only on 3-axis models)
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void setup()
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{
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Serial.begin(9600);
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// Provide ground and power by using the analog inputs as normal
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// digital pins. This makes it possible to directly connect the
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// breakout board to the Arduino. If you use the normal 5V and
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// GND pins on the Arduino, you can remove these lines.
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pinMode(groundpin, OUTPUT);
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pinMode(powerpin, OUTPUT);
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digitalWrite(groundpin, LOW);
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digitalWrite(powerpin, HIGH);
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}
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void loop()
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{
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Serial.print(analogRead(xpin));
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Serial.print(" ");
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Serial.print(analogRead(ypin));
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Serial.print(" ");
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Serial.print(analogRead(zpin));
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Serial.println();
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delay(1000);
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}
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@ -42,6 +42,8 @@ unsigned long millis()
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unsigned long m;
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uint8_t oldSREG = SREG;
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// disable interrupts while we read timer0_millis or we might get an
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// inconsistent value (e.g. in the middle of the timer0_millis++)
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cli();
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m = timer0_millis;
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SREG = oldSREG;
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@ -57,7 +59,7 @@ void delay(unsigned long ms)
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;
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}
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/* Delay for the given number of microseconds. Assumes a 16 MHz clock.
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/* Delay for the given number of microseconds. Assumes a 8 or 16 MHz clock.
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* Disables interrupts, which will disrupt the millis() function if used
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* too frequently. */
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void delayMicroseconds(unsigned int us)
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6
todo.txt
6
todo.txt
@ -6,11 +6,11 @@ Add highByte(), lowByte(), and makeWord(high, low) functions.
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Add bitRead() and bitWrite() functions (and bitSet() and bitClear()?)
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Add Encoder library.
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Add String library.
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Add Servo library.
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Comment LiquidCrystal examples.
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Write LiquidCrystal documentation.
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[done] Move #include <WProgram.h> after other #include's? (prevent it from interfering with standard libraries)
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[done] Add LiquidCrystal library.
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[done] Add Servo library.
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[done] Fix millis() so it overflows on a nice variable-size boundary; see: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1205949448
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[done] Factor out print statements into a common base class for Serial, LiquidCrystal, etc.
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@ -38,6 +38,8 @@ Supporting EEMEM directive by changing compiler command line: http://www.arduino
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Include Arduino as AVR-ISP sketch in hardware/firmwares.
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Move type definitions into WConstants.h.
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Change core to use Arduino types (e.g. byte, boolean).
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Fix millis() so it never increments by two.
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Consider moving millis() to timer 1, and configuring it so the interrupt is generated once a millisecond.
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COMPUTER
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@ -128,4 +130,4 @@ Show a picture of the LED flashing.
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DOCUMENTATION / TROUBLESHOOTING
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Add explanation of how to work around auto-reset.
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Add explanation of how to work around auto-reset.
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