Ok I recently purchased this product AVR 14 Pin 20MHz 8K 12A/D - ATtiny84 - COM-11232 - SparkFun Electronics and am programming it using an Arduino UNO R3 SMD edition.
I got everything to work correctly and got the ATtiny84 to blink and led. The problem I am having is that the sketch I wrote has commands in it that the ATtiny doesn't support. Is there a way around this? Would it help to use some other type of programmer? I am not familiar with the C++ but does the ATtiny support that? I am trying to make a trail camera. Here is the sketch I compiled. Thanks... if there a better way to write this sketch let me know. And if you have questions about it I would be glad to help! Thanks
/*
* //////////////////////////////////////////////////
* //making sense of the Parallax PIR sensor's output
* //////////////////////////////////////////////////
*
* Switches a LED according to the state of the sensors output pin.
* Determines the beginning and end of continuous motion sequences.
*
* @author: Kristian Gohlke / krigoo (_) gmail (_) com / http://krx.at
* @date: 3. September 2006
*
* kr1 (cleft) 2006
* released under a creative commons "Attribution-NonCommercial-ShareAlike 2.0" license
* http://creativecommons.org/licenses/by-nc-sa/2.0/de/
*
*
* The Parallax PIR Sensor is an easy to use digital infrared motion sensor module.
* (http://www.parallax.com/detail.asp?product_id=555-28027)
*
* The sensor's output pin goes to HIGH if motion is present.
* However, even if motion is present it goes to LOW from time to time,
* which might give the impression no motion is present.
* This program deals with this issue by ignoring LOW-phases shorter than a given time,
* assuming continuous motion is present during these phases.
*
* 1. Hook pir to breadboard with gnd to gnd on Arduino and 5v to 5v on Arduino and Alarm pin to pin 3 Arduino
* 2. put LED in pin 13 Arduino
* 3. Light sensor: Get power from same line on BB as the PIR, put 10k resistor from other leg to ground, put alarm wire from "other leg of sensor" to pin 7 on Arduino
* 4. Potientally IR LED (now regular LED), Get power from Pin 9 Arduino and hook to 1.5k resistor on breadboard, other end of resistor to long leg of LED and gnd to short end.
*/
/////////////////////////////
//VARS
//the time we give the sensor to calibrate (10-60 secs according to the datasheet)
int calibrationTime = 30;
//the time when the sensor outputs a low impulse
long unsigned int lowIn;
//the amount of milliseconds the sensor has to be low
//before we assume all motion has stopped
long unsigned int pause = 5000;
boolean lockLow = true;
boolean takeLowTime;
int LED = 9; // the pin that the IR led is connected to
const int BUTTON = 7; // the input pin where the photocell is connected
int val = 0; // val is used to store the state of the input pin
int PHOTOCELL = 12; // pin that supplies photocell with power
int SHUTTER = 2; //pin that controls SHUTTER
int pirPin = 3; //the digital pin connected to the PIR sensor's output
int ledPin = 13;
/////////////////////////////
//SETUP
void setup(){
Serial.begin(9600);
pinMode(LED, OUTPUT);
pinMode(BUTTON, INPUT);
pinMode(pirPin, INPUT);
pinMode(ledPin, OUTPUT);
pinMode(PHOTOCELL, OUTPUT);
digitalWrite(pirPin, LOW);
pinMode(SHUTTER, OUTPUT);
digitalWrite(SHUTTER, HIGH);
delay(5000);
digitalWrite(SHUTTER, LOW);
//give the sensor some time to calibrate
Serial.print("calibrating sensor ");
for(int i = 0; i < calibrationTime; i++){
Serial.print(".");
delay(1000);
}
Serial.println(" done");
Serial.println("SENSOR ACTIVE");
delay(50);
}
////////////////////////////
//LOOP
void loop(){
if(digitalRead(pirPin) == HIGH){
digitalWrite(PHOTOCELL, HIGH); //sends power to photocell
digitalWrite(ledPin, HIGH); //the led visualizes the sensors output pin state
if(lockLow){
lockLow = false;
digitalWrite(SHUTTER, HIGH);
delay(250);
digitalWrite(SHUTTER, LOW);
}
takeLowTime = true;
val = digitalRead(BUTTON);
if(val == LOW) {
digitalWrite(LED, HIGH);
} else {
digitalWrite(LED, LOW);
}
if(lockLow){
//makes sure we wait for a transition to LOW before any further output is made:
lockLow = false;
Serial.println("---");
Serial.print("motion detected at ");
Serial.print(millis()/1000);
Serial.println(" sec");
delay(50);
}
takeLowTime = true;
}
if(digitalRead(pirPin) == LOW){
digitalWrite(PHOTOCELL, LOW); //cuts power to photocell
digitalWrite(ledPin, LOW); //the led visualizes the sensors output pin state
digitalWrite(LED, LOW);
if(takeLowTime){
takeLowTime = false;
digitalWrite(SHUTTER, HIGH);
delay(250);
digitalWrite(SHUTTER, LOW);
}
if(takeLowTime){
lowIn = millis(); //save the time of the transition from high to LOW
takeLowTime = false; //make sure this is only done at the start of a LOW phase
}
//if the sensor is low for more than the given pause,
//we assume that no more motion is going to happen
if(!lockLow && millis() - lowIn > pause){
//makes sure this block of code is only executed again after
//a new motion sequence has been detected
lockLow = true;
Serial.print("motion ended at "); //output
Serial.print((millis() - pause)/1000);
Serial.println(" sec");
delay(50);
}
}
}
