Hi,
I'm new to programming and would be very grateful if someone could look at my code and tell me what I'm doing wrong
Project.ino (3.91 KB)
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Compiles for me (1.0)
int hundredsLatch = 5;
int thousandsLatch = 6;
int tenthousandsLatch = 7;
int JKreset = 4;
//Data Pins
int A=8;
int B=9;
int C=10;
int D=11;
//Input signals
int signalOne = 3;
void setup() {
// put your setup code here, to run once:
pinMode(hundredsLatch,OUTPUT);
pinMode(thousandsLatch, OUTPUT);
pinMode(tenthousandsLatch, OUTPUT);
pinMode(JKreset,OUTPUT);
pinMode(A,OUTPUT);
pinMode(B,OUTPUT);
pinMode(C,OUTPUT);
pinMode(D,OUTPUT);
pinMode(signalOne,INPUT);
Serial.begin(9600);
//reset the FlipFlop OUTPUT Pin4 arduino -see latch
digitalWrite(JKreset,HIGH);
delay(100);
digitalWrite(JKreset,LOW);
//Load the Display with zeros
display1(0);
//Measure the pulse using pulseIn see reference
//unsigned int duration= pulseIn(signalOne,20000000);//?? see reference
unsigned int duration= 21300;
double duration2 = (double)duration;
display1(duration);
delay(5000);
double angularVelocity;
double theta = PI/4.0; // Pi is double so denominator has to be double
// Calulate the anglerVelocity in Rads/s using pi/4 for angle.
duration2 = (double)duration2/10000000.0;
angularVelocity = theta/duration2;
display1(angularVelocity);
Serial.println(angularVelocity);
}
void display1(unsigned int duration1){ //Displays first three significant of a five digit Decimal No. on a 3 digit 7 segment Display.
//Declaration of variables local to display1 function
byte units;
byte tens;
byte hundreds;
byte thousands;
byte tenthousands;
tenthousands = duration1/10000;
duration1 = duration1%10000;
thousands = duration1/1000;
duration1 = duration1%1000;
hundreds = duration1/100;
duration1=duration1%100;
tens = duration1/10;
duration1 = duration1%10;
units = duration1;
//***********************************************************
//Conversion of duration to five discrete BCD variables
decimalToBCD(tenthousands);
digitalWrite(tenthousandsLatch,HIGH);
delay(100);
digitalWrite(tenthousandsLatch,LOW);
decimalToBCD(thousands);
digitalWrite(thousandsLatch,HIGH);
delay(100);
digitalWrite(thousandsLatch,LOW);
decimalToBCD(hundreds);
digitalWrite(hundredsLatch,HIGH);
delay(100);
digitalWrite(hundredsLatch,LOW);
//***********************************************************
//Display the required digits
//Test using Serial Monitor
Serial.print("*");
Serial.print(tenthousands);
Serial.print("*");
Serial.print(thousands);
Serial.print("*");
Serial.print(hundreds);
//Etc
Serial.println("*");
}
void decimalToBCD(int number){
if(number/8 ==1){
digitalWrite (D,HIGH);
}else{
digitalWrite (D,LOW);
}
number = number%8; // after this line, number should be between 0-7
if (number/4==1){
digitalWrite(C,HIGH);
}else {
digitalWrite(C,LOW);
}
number = number%4;
if (number/2==1){
digitalWrite(B,HIGH);
}else {
digitalWrite(B,LOW);
}
number = number%2;
if (number/1==1){
digitalWrite(A,HIGH);
}else {
digitalWrite(A,LOW);
}
}
void loop() {
// put your main code here, to run repeatedly:
// not used in this program
}
Yeah that's what has me so confused because it worked fine for me today in school but it won't work for me at home on my own board (It's a geekcreit board)
donegaci:
(It's a geekcreit board)
A what?
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