Hello everyone, I have to do a motion detector and count motion using phototransistor and led using C (not Arduino) language, but using arduino bradboard.
I implemented this circuit, but on the code part I have some troubles.
I will be so happy if anyone could help me.
Thanks
Your post was MOVED to its current location as it is more suitable because it is not an introductory tutorial
ok, thanks
There is no such thing as the Arduino language. Arduino boards are programmed in C, C++ and in the case of some (not really) Arduino boards such as the ESP32 in Python
Please post the exact details of what sounds like an assignment
What coding have you tried so far and where are you stuck ?
EDIT : corrected spelling
void initializare_COMP(){
ACSR= 0b00001000; // AIN0 = (Vin+); AIN1 = (Vin-);
ISR(ANALOG_COMP_vect)
{
unsigned char data;
//_delay_ms(10);
data = ACSR & 0x20;
if (data != 0)
{
ON_LED_3;//LED ON
N=1;
data = TCCR2 & 0xF8;
TCCR2 = data | 0x05; //start clk Timer PWM
}
else
{
OFF_LED_3;//LED OFF
N=0;
data = TCCR2 & 0xF8;
TCCR2 = data | 0x00; //stop clk PWM
PORTB &=~(1<<7);
}
}
i have this example but i don know how to implement in my case
Thanks for using code tags when you posted
What do you expect that function to do ?
ON_LED_3;//LED ON
What do you expect the lines like this to do ?
Which Arduino board do you have ?
when data is not 0 ( is 1) i understand that led is on but i am not sure.
its an "if" statement, and I am actually ready to change the code but I dont know how to start and I am not so good at coding unfortunately 
Arduino uno
How is ON_LED_3; an if statement ?
Hi, @psionyx
Welcome to the forum.
Can you explain?
How do you load it onto the UNO?
Why not use the Arduino IDE to do your code?
Thanks.. Tom... 
oh, sorry my bad, this is the code
/*
* Controller de lumina cu fotodioda
fotodioda BPW34
Comparator si generator PWM.
*/
#include <avr/io.h>
#include <avr/interrupt.h>
#define F_CPU 16000000UL
#include <util/delay.h>
#define ON_LED_L PORTB |= 0x20
#define OFF_LED_L PORTB &= 0xDF
const unsigned char Sir1[] = {"\r\nFotodioda, Detector de lumina\r\n"};
const unsigned char SirON[] = {"\r\nLumina\r\n"};
const unsigned char SirOFF[] = {"\r\nIntuneric\r\n"};
const unsigned char SirP[] = {"="};
//#define ADC_bipolar //ADC lucreaza in modul bipolar
unsigned int N,INEL_DATE[80]; //memoria inel
unsigned char display_Chars_10[10]={'=','2', '5','6' ,'4',',', '9','9', 0x0D, 0x0A};
unsigned long int V ;
//programarea porturilor
void Initializare_porturi()
{
DDRC = 0x00; //bit 0 high Z
PORTC = 0x00;
DDRB = 0x28; //LED si 0C2
PORTB = 0x11;
DDRD &= 0x90; //AIN0, AIN1
PORTD &= 0x90;//AIN0, AIN1
}
void RESET_Var()
{
N = 0;
}
void Trimite_Mesaj(const unsigned char *pointer)
{
const unsigned char *String;
String = pointer;
while (*String != 0)
{
while ((UCSR0A & (1 << UDRE0)) == 0) {};
UDR0 = *String++;
}
}
void Trimite_Valoare (unsigned char cmd, unsigned long int valoare)
{
unsigned char Local_vr = 0;
unsigned long int data_int=0, Diplay_Val;
Local_vr = cmd;
Diplay_Val = valoare;
if (Local_vr !='m')
{
for (Local_vr=0;Local_vr<10;Local_vr++)
{
display_Chars_10[Local_vr] = 48; //0 0 0 0 0 ..
}
data_int = Diplay_Val;
display_Chars_10[0] ='=';
display_Chars_10[9] =0x0A;
display_Chars_10[8] =0x0D;
display_Chars_10[5] =0x2E;
for (Local_vr=7;Local_vr>=0;Local_vr--)
{
if (data_int !=0)
{
if (Local_vr!=5)
{
display_Chars_10[Local_vr] = (data_int%10)+48;
data_int = data_int/10;
}
}
else break;
}
UCSR0A |=0x80;
UDR0 = cmd;
for (data_int=0;data_int <10; data_int++)
{
Local_vr = UCSR0A & 0x20;
while(Local_vr ==0) Local_vr = UCSR0A & 0x20;
UCSR0A |= 0x20;
UDR0 = display_Chars_10[data_int];
}
}
else // afisez datele din memorie
{
for (data_int=0;data_int<80;data_int++)
{
Local_vr = UCSR0A & 0x20;
while(Local_vr ==0) Local_vr = UCSR0A & 0x20;
UCSR0A |= 0x20;
UDR0 = (INEL_DATE[data_int])>>8;
Local_vr = UCSR0A & 0x20;
while(Local_vr ==0) Local_vr = UCSR0A & 0x20;
UCSR0A |= 0x20;
UDR0 = INEL_DATE[data_int];
}
}
}
void initializare_COMP()
{
ACSR= 0b00001000; // ACIE = 1, AIN0 = (Vin+); AIN1 = (Vin-);
}
void Initializare_timer2_PWM()
{
TCCR2A = 0b11000001; //PWM_OFF (| 0xC0 start PWM)Set OC2A on compare match
TCCR2B =0x00;
TCCR2B |=0x00; //clkI/O/128
OCR2A = 128; //pwm 50%
}
void Initializare_SERIAL()
{
UCSR0B = 0b10011000;
UBRR0H = 0; //
UBRR0L = 103; //9600biti/sec
}
void Semnalizare_Start()
{
unsigned char data;
for(data=0;data<4;data++)
{
ON_LED_L;
_delay_ms(200);
OFF_LED_L;
_delay_ms(200);
}
_delay_ms(200);
}
int main(void)
{
Initializare_porturi();
Initializare_timer2_PWM();
Initializare_SERIAL();
initializare_COMP();
Semnalizare_Start (); //semnalizez luminos start program
Trimite_Mesaj(Sir1);
sei();
while (1)
{
//bucla principala, astept evenimente pe intrerupere (tasks)
}
}
// ON LED3 si PWM la riding edge- off LED3 si PWM la failing edge
ISR(ANALOG_COMP_vect) //intreruperea comparator
{
unsigned char data;
//static unsigned int Index_1ms;
//Index_1ms++;
//if (Index_1ms <= 500)
//{
//ON_LED_L;
//}
//else
//{
//}
//_delay_ms(10); //debounsing, echivalent histerezei//
data = (ACSR & (1<< ACO));//0x20; //citesc iesirea comparatorului
if (data != 0)
{
ON_LED_L;//pwm ON
N=1;
TCCR2B |= 0x05; //start clk Timer PWM
}
else
{
OFF_LED_L;//pwm OFF
N=0;
data = TCCR2B & 0xF8;
TCCR2B = data | 0x00; //stop clk PWM
PORTB &=~(1<<7); // eroare aici OC2 ramine in 1 nu poate fi controlet daca PWM activ//
} //eventual disable PWM
}
ISR(USART_RX_vect) {
//afisez 99999 = 999.99*100; folosesc 2 zecimale
//intreruperea de receptie seiriala
unsigned char data=0;
ON_LED_L;// testez rutina rx
data = UDR0; //citesc comanda receptionata
switch(data)
{
case 'n':
Trimite_Valoare('n', N);
if (N != 0) Trimite_Mesaj(SirON);
else Trimite_Mesaj(SirOFF);
break;
case '0':
Trimite_Valoare('0',N );
RESET_Var();
break;
default:
OCR2A = data;
}
OFF_LED_L;
}
Hello Tom,
I posted the right code in the message before
(if need i can post one more time, but dont wanna make chat very loaded)
It does not seem to have ON_LED_3 in it
that one was wrong code, sorry
I inserted the good code higher
Then I suggest that you delete the post with the wrong code in it or update the post with the correct code and add a note to explain what you have done
Hi,
Why?
Is this a school/educational establishment project/assignment?
Tom...
And that circuit will behave differently to what you have.
Can you please tell us your electronics, programming, arduino, hardware experience?
Do you have a DMM?
If so have you measured the voltage on A0 to make sure your hardware is working?
Verify that the voltage changes as to cover and uncover the sensor?
Can you please tell us your electronics, programming, arduino, hardware experience.
Tom...
This Topic has been locked as it is the identical or too similar your other post.
Please use the original post and do not duplicate.