Two digit-countdown-timer
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This document contains code for a PIC microcontroller to control a 7-segment display using two digits. It defines ports and registers for the display and buttons. A timer interrupt increments the display values every second. Buttons can increment, decrement, or start/stop the timer to control the scrolling display.
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![#include <16F877a.h>
#fuses XT,NOPROTECT
#use delay (clock=4M)
#byte TRISC = 0x87
#byte PORTC = 0x07
#byte TRISB = 0x86
#byte PORTB = 0x06
#byte TRISA = 0x85
#byte PORTA = 0x05
void set7seg();
char display[10] = { 0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7C,0x07,0x7F,0x67};
char i,j;
long count=0;
void set7seg(){
output_high(PIN_C0); //TURN ON Q1
output_low(PIN_C1);//TURN OFF Q2
PORTB = display[i];
delay_ms(1);
output_high(PIN_C1); //TURN ON Q2
PORTB = display[j];
output_low(PIN_C0); //TURN OFF Q1
delay_ms(1);
}
#int_timer0 // 1S
void timer0(){
count++;//500us
if(count == 1850)
{
i--;
count = 0;
if(i == -1)
{
i = 9;
j--;
}
}
SET_TIMER0(131);
}
void main(){
TRISC = 0b00000000; // PAPUNTANG TRANSISTOR
TRISB = 0x00; // data papunta sa 7seg resistor
TRISA = 0b111100; //push button data
setup_timer_0(RTCC_INTERNAL|RTCC_DIV_4);
SET_TIMER0(131);
i=j=0;
while(true)
{
set7seg();
if(input(PIN_A0) == 0)
{
while
(input(PIN_A0) == 0)
{
set7seg();
}
i++;](https://image.slidesharecdn.com/two-digit-countdown-timer-170420010439/85/Two-digit-countdown-timer-1-320.jpg)
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F_CPU
16000000
UL
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(
uint16_t
frequency)
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notePlaying
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0
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TIMER1_COMPA_vect
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loop
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(
Serial
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available
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>
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UL
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playNote
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notePlaying
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494
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523
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'D':
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(
587
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(
659
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break
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case
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playNote
(
698
)
;
break
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case
'G':
playNote
(
784
)
;
break
;
case
'q':
TCCR1B =
0
;
// Stop the timer
notePlaying =
0
;
break
;
}
}
}
#define
F_CPU
16000000
UL
// CPU Frequency
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<avr/io.h>
#include
<util/delay.h>
volatile
uint8_t
notePlaying =
0
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int iPos_h, iPos_l, iValue;
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if(iRow_value == 3) iValue = (0x80+0x20);
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iPos_l=((iValue + iCol_value) & 0x0F) << 4;
cmdwrt(iPos_h);
cmdwrt(iPos_l);
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# peripheral registers .equ PWR_BASE0x40007000 .equ PWR_CR0x00 .docx
# peripheral registers .equ PWR_BASE0x40007000 .equ PWR_CR0x00 .equ PWR_CR_PMODE0x4000 .equ RCC_BASE0x40023800 .equ RCC_CR0x00 .equ RCC_CR_HSEON0x00010000 .equ RCC_CR_HSERDY0x00020000 .equ RCC_CR_PLLON0x01000000 .equ RCC_CR_PLLRDY0x02000000 .equ RCC_PLLCFGR0x04 .equ PLL_M8 .equ PLL_N336 .equ PLL_P2 .equ PLL_Q7 /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */ // #define PLL_M 8 // #define PLL_N 336 /* SYSCLK = PLL_VCO / PLL_P */ // #define PLL_P 2 /* USB OTG FS SDIO and RNG Clock = PLL_VCO / PLLQ */ // #define PLL_Q 7 .equ RCC_CFGR0x08 .equ RCC_CFGR_MCO1_MASK0x00600000 .equ RCC_CFGR_MCO1_HSI0x00000000 .equ RCC_CFGR_MCO1_LSI0x00200000 .equ RCC_CFGR_MCO1_HSE0x00400000 .equ RCC_CFGR_MCO1_PLL0x00600000 .equ RCC_CFGR_MCO2_MASK0xC0000000 .equ RCC_CFGR_MCO2_SYSCLK0x00000000 .equ RCC_CFGR_MCO2_PLLI2S0x40000000 .equ RCC_CFGR_MCO2_HSE0x80000000 .equ RCC_CFGR_MCO2_PLL0xC0000000 .equ RCC_CFGR_MCO2_Div_10x00000000 .equ RCC_CFGR_HPRE_DIV10x00000000 .equ RCC_CFGR_PPRE2_DIV20x00008000 .equ RCC_CFGR_PPRE1_DIV40x00001400 .equ RCC_CFGR_SW0x00000003 .equ RCC_CFGR_SW_PLL0x00000002 .equ RCC_CFGR_SWS0x0000000C .equ RCC_CFGR_SWS_PLL0x00000008 .equ RCC_PLLCFGR_PLLSRC_HSE0x00400000 .equ RCC_CIR0x0c .equ RCC_AHB1ENR0x30 .equ RCC_AHB1ENR_GPIOA_EN0x01 .equ RCC_AHB1ENR_GPIOB_EN0x02 .equ RCC_AHB1ENR_GPIOC_EN0x04 .equ RCC_AHB1ENR_GPIOD_EN0x08 .equ RCC_AHB1ENR_GPIOE_EN0x10 .equ RCC_APB1ENR0x40 .equ RCC_APB1ENR_PWREN0x10000000 .equ FLASH_BASE0x08000000 .equ FLASH_R_BASE0x40023c00 .equ FLASH_ACR0x00 .equ FLASH_ACR_ICEN0x00000200 .equ FLASH_ACR_DCEN0x00000400 .equ FLASH_ACR_LATENCY_5WS0x00000005 .equ VECT_TAB_OFFSET0x00 .equ SCB_BASE0xE000ED00 .equ SCB_VTOR0x08 .equ GPIOA_BASE0x40020000 .equ GPIOB_BASE0x40020400 .equ GPIOC_BASE0x40020800 .equ GPIOD_BASE0x40020C00 .equ GPIOE_BASE0x40021000 .equ GPIO_MODER0x00 .equ GPIO_MODER_IN0b00 .equ GPIO_MODER_OUT0b01 .equ GPIO_MODER_AF0b10 .equ GPIO_MODER_ANALOG0b11 .equ GPIO_OTYPER0x04 .equ GPIO_OTYPER_PP0b00 .equ GPIO_OTYPER_OD0b01 .equ GPIO_OSPEEDR0x08 .equ GPIO_OSPEEDR_LS0b00 .equ GPIO_OSPEEDR_MS0b01 .equ GPIO_OSPEEDR_FS0b10 .equ GPIO_OSPEEDR_HS0b11 .equ GPIO_PUPDR0x0c .equ GPIO_PUPDR_NOPUP0b00 .equ GPIO_PUPDR_PUP0b01 .equ GPIO_PUPDR_PDOWN0b10 .equ GPIO_IDR0x10 .equ GPIO_ODR0x14 .equ SYST_BASE0xE000E010 .equ SYST_CSR0x0 .equ SYST_RVR0x4 .equ SYST_CVR0x8 .equ SYST_CALIB0xC .equ SYST_RVR_MASK0x00ffffff .equ SYST_CSR_CLKSOURCE0x00000004 .equ SYST_CSR_TICKINT0x00000002 .equ SYST_CSR_ENABLE0x00000001
// file: rcc.s
.syntax unified
.thumb
.include "src/periph_regs.inc"
.text
.align 2
.global rcc_gpio_enable
.thumb_func
...
(381877808) 102054282 5-listing-program
The document describes a program listing for an adaptive FIR LMS noise cancellation filter implemented on a TMS320C613 DSP. The FIR filter structure and LMS algorithm for updating filter coefficients are explained. Noise inputs include 100Hz sinusoidal noise and burst noise. The program provides selectable output types including original signal, noise signal, filtered noise signal, and error signal.
Programming A Robot Using
This document discusses programming a robot using ICC AVR ver 7.5, including how to install and use the software to compile and build code. It also covers important microcontroller concepts like I/O ports, analog to digital conversion, and provides code examples for motion control, line following, and turning the buzzer and LED display on/off.
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#define
F_CPU
16000000
UL
// CPU Frequency
#include
<avr/io.h>
#include
<util/delay.h>
volatile
uint8_t
notePlaying =
0
;
void
setup
()
{
DDRB |=
(
1
<< PB6
)
;
// Set PB6 as output
TCCR1A =
0
;
// Clear Timer1 registers
TCCR1B =
0
;
TIMSK1 =
0
;
OCR1A =
0
;
}
void
playNote
(
uint16_t
frequency)
{
if
(
notePlaying
)
{
TCCR1B =
0
;
// Stop the timer
notePlaying =
0
;
}
else
{
// Calculate the prescaler value
uint16_t
prescaler =
1
;
while
((
F_CPU /
(
prescaler * frequency *
2
))
>
65535
)
{
prescaler <<=
1
;
}
// Configure Timer1
TCCR1B =
(
1
<< WGM12
)
|
(
prescaler & 0x
07
)
;
// Mode 4, prescaler
OCR1A =
(
F_CPU /
(
prescaler * frequency *
2
))
-
1
;
// Output compare value
TIMSK1 =
(
1
<< OCIE1A
)
;
// Enable compare match interrupt
notePlaying =
1
;
// Start the timer
TCNT1 =
0
;
TCCR1B |=
(
1
<< CS10
)
|
((
prescaler >>
1
)
& 0x
03
)
;
// Start timer
}
}
ISR
(
TIMER1_COMPA_vect
)
{
PORTB ^=
(
1
<< PB6
)
;
// Toggle PB6 state
}
void
loop
()
{
if
(
Serial
.
available
()
>
0
)
{
char
key =
Serial
.
read
()
;
switch
(
key
)
{
case
'A':
playNote
(
440
)
;
break
;
case
'B':
playNote
(
494
)
;
break
;
case
'C':
playNote
(
523
)
;
break
;
case
'D':
playNote
(
587
)
;
break
;
case
'E':
playNote
(
659
)
;
break
;
case
'F':
playNote
(
698
)
;
break
;
case
'G':
playNote
(
784
)
;
break
;
case
'q':
TCCR1B =
0
;
// Stop the timer
notePlaying =
0
;
break
;
}
}
}
#define
F_CPU
16000000
UL
// CPU Frequency
#include
<avr/io.h>
#include
<util/delay.h>
volatile
uint8_t
notePlaying =
0
;
void
setup
()
{
DDRB |=
(
1
<< PB6
)
;
// Set PB6 as output
TCCR1A =
0
;
// Clear Timer1 registers
TCCR1B =
0
;
TIMSK1 =
0
;
OCR1A =
0
;
}
void
playNote
(
uint16_t
frequency)
{
if
(
notePlaying
)
{
TCCR1B =
0
;
// Stop the timer
notePlaying =
0
;
}
else
{
// Calculate the prescaler value
uint16_t
prescaler =
1
;
while
((
F_CPU /
(
prescaler * frequency *
2
))
>
65535
)
{
prescaler <<=
1
;
}
// Configure Timer1
TCCR1B =
(
1
<< WGM12
)
|
(
prescaler & 0x
07
)
;
// Mode 4, prescaler
OCR1A =
(
F_CPU /
(
prescaler * frequency *
2
))
-
1
;
// Output compare value
TIMSK1 =
(
1
<< OCIE1A
)
;
// Enable compare match interrupt
notePlaying =
1
;
// Start the timer
TCNT1 =
0
;
TCCR1B |=
(
1
<< CS10
)
|
((
prescaler >>
1
)
& 0x
03
)
;
// Start timer
}
}
ISR
(
TIMER1_COMPA_vect
)
{
PORTB ^=
(
1
<< PB6
)
;
// Toggle PB6 state
}
void
loop
()
{
if
(
Serial
.
available
()
>
0
)
{
char
key =
Serial
.
read
()
;
switch
(
key
)
{
case
'A':
playNote
(
440
)
;
break
;
case
'B':
playNote
(
494
)
;
break
;
case
'C':
playNote
(
523
)
;
break
;
case
'D':
playNote
(
587
)
;
break
;
case
'E':
playNote
(
659
)
;
break
;
case
'F':
playNote
(
698
)
;
break
;
case
'G':
playNote
(
784
)
;
break
;
case
'q':
TCCR1B =
0
;
// Stop the timer
notePlaying =
0
;
break
;
}
}
}
#define
F_CPU
16000000
UL
// CPU Frequency
#include
<avr/io.h>
#include
<util/delay.h>
volatile
uint8_t
notePlaying =
0
;
void
setup
()
{
DDRB |=
(
1
<< PB6
)
.
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// PORT C7 - PORT C4 output (LCD data bus); PORT C2 – PORT C0 output (LCD control
signals)
// PORTB7 output (LCD Chip Select Bit – active Low)
// Includes LCD initialization routine
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#include \"derivative.h\" /* derivative-specific definitions */
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const unsigned char cInit_commands[20] =
{0x30,0x30,0x30,0x20,0x20,0x90,0x10,0x50,0x70,0x80,0x50,0xE0,
0x60,0xA0,0x00,0xE0,0x00,0x10,0x00,0x60};
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{ {\'D\',\'a\',\'v\',\'e\'\'},
{\' \',\' \',\'s\',\'m\',\'i\',\'t\',\'h\' \'},
{\' \',\' \',\' \',\'T\'\';}};//data in Program Flash
const unsigned char cE = 0x04;
const unsigned char cRS = 0x01;
unsigned char cValues;
int p;
//function prototypes
void initLCD(void);
void initPorts(void);
void LCDputs(char*);
void LCDputch(char);
void cmdwrt(unsigned char);
void datawrt(char);
void position(int,int);
void delay1u(void);
void delay100u(void);
void delay2m(void);
void delays(int);
/************main************/
void main()
{
initPorts( ); // port initializations
initLCD( ); // LCD inititialization
cValues = \'C\';
// datawrt(\'6\'); // demonstrates single character write
// position(1,0);
// LCDputs(\" \"); // blank row 1
// position(2,0);
// LCDputs(\" \"); // blank row 2
// position(3,0);
// LCDputs(\" \"); // blank row 3
for(;;)
{
for (p=0;p<3;p++)
{
position(p+1,0);
LCDputs(cMessage[p]); //passes message address
}
delays(20000); //wait a long time
} /* forever loop */
}
/*********functions*********/
void initPorts( )
{
unsigned char cValue;
DDRB = 0x80; //LCD CSB active low
DDRC = 0xFF; // PC7-PC4 - 4-bit LCD data bus, PC2 - E, PC1 - R/W~, PC0 - RS: all
outputs
cValue = PORTB;
PORTB = cValue | 0x00; // LCD CSB (PORT B7) enabled with a logic low
}
// sends initialization commands one-by-one
void initLCD( )
{
unsigned char i;
for (i=0;i<=19;i++)
{
cmdwrt(cInit_commands[i]);
}
}
// sends a control word to LCD bus
void cmdwrt(unsigned char cCtrlword)
{
PORTC = cCtrlword; // output command onto LCD data pins
PORTC = cCtrlword + cE; // generate enable pulse to latch it (xxxx x100)
delay1u( ); // hold it for 1us
PORTC = cCtrlword; // end enable pulse (xxxx x000)
delay2m(); // allow 2ms to latch command inside LCD
PORTC = 0x00;
delay2m(); // allow 2ms to latch command inside LCD
}
void position(int iRow_value, int iCol_value)
{
int iPos_h, iPos_l, iValue;
if(iRow_value == 1) iValue = (0x80+0x00);
if(iRow_value == 2) iValue = (0x80+0x10);
if(iRow_value == 3) iValue = (0x80+0x20);
iPos_h=((iValue + iCol_value) & 0xF0);
iPos_l=((iValue + iCol_value) & 0x0F) << 4;
cmdwrt(iPos_h);
cmdwrt(iPos_l);
}
//Sends a string of char.
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programminghomeworkhelp.com is the leading online solution provider for C++ Programming assignments. If you are struggling with your scoring in C++ Programming Assignments, Homework or Projects then email your requirements at info@programminghomeworkhelp.com and we will ensure excellent grades. Email your C++ assignment to info@programminghomeworkhelp.com and distress yourself from the complex C++ Programming Assignments.
# peripheral registers .equ PWR_BASE0x40007000 .equ PWR_CR0x00 .docx
# peripheral registers .equ PWR_BASE0x40007000 .equ PWR_CR0x00 .equ PWR_CR_PMODE0x4000 .equ RCC_BASE0x40023800 .equ RCC_CR0x00 .equ RCC_CR_HSEON0x00010000 .equ RCC_CR_HSERDY0x00020000 .equ RCC_CR_PLLON0x01000000 .equ RCC_CR_PLLRDY0x02000000 .equ RCC_PLLCFGR0x04 .equ PLL_M8 .equ PLL_N336 .equ PLL_P2 .equ PLL_Q7 /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */ // #define PLL_M 8 // #define PLL_N 336 /* SYSCLK = PLL_VCO / PLL_P */ // #define PLL_P 2 /* USB OTG FS SDIO and RNG Clock = PLL_VCO / PLLQ */ // #define PLL_Q 7 .equ RCC_CFGR0x08 .equ RCC_CFGR_MCO1_MASK0x00600000 .equ RCC_CFGR_MCO1_HSI0x00000000 .equ RCC_CFGR_MCO1_LSI0x00200000 .equ RCC_CFGR_MCO1_HSE0x00400000 .equ RCC_CFGR_MCO1_PLL0x00600000 .equ RCC_CFGR_MCO2_MASK0xC0000000 .equ RCC_CFGR_MCO2_SYSCLK0x00000000 .equ RCC_CFGR_MCO2_PLLI2S0x40000000 .equ RCC_CFGR_MCO2_HSE0x80000000 .equ RCC_CFGR_MCO2_PLL0xC0000000 .equ RCC_CFGR_MCO2_Div_10x00000000 .equ RCC_CFGR_HPRE_DIV10x00000000 .equ RCC_CFGR_PPRE2_DIV20x00008000 .equ RCC_CFGR_PPRE1_DIV40x00001400 .equ RCC_CFGR_SW0x00000003 .equ RCC_CFGR_SW_PLL0x00000002 .equ RCC_CFGR_SWS0x0000000C .equ RCC_CFGR_SWS_PLL0x00000008 .equ RCC_PLLCFGR_PLLSRC_HSE0x00400000 .equ RCC_CIR0x0c .equ RCC_AHB1ENR0x30 .equ RCC_AHB1ENR_GPIOA_EN0x01 .equ RCC_AHB1ENR_GPIOB_EN0x02 .equ RCC_AHB1ENR_GPIOC_EN0x04 .equ RCC_AHB1ENR_GPIOD_EN0x08 .equ RCC_AHB1ENR_GPIOE_EN0x10 .equ RCC_APB1ENR0x40 .equ RCC_APB1ENR_PWREN0x10000000 .equ FLASH_BASE0x08000000 .equ FLASH_R_BASE0x40023c00 .equ FLASH_ACR0x00 .equ FLASH_ACR_ICEN0x00000200 .equ FLASH_ACR_DCEN0x00000400 .equ FLASH_ACR_LATENCY_5WS0x00000005 .equ VECT_TAB_OFFSET0x00 .equ SCB_BASE0xE000ED00 .equ SCB_VTOR0x08 .equ GPIOA_BASE0x40020000 .equ GPIOB_BASE0x40020400 .equ GPIOC_BASE0x40020800 .equ GPIOD_BASE0x40020C00 .equ GPIOE_BASE0x40021000 .equ GPIO_MODER0x00 .equ GPIO_MODER_IN0b00 .equ GPIO_MODER_OUT0b01 .equ GPIO_MODER_AF0b10 .equ GPIO_MODER_ANALOG0b11 .equ GPIO_OTYPER0x04 .equ GPIO_OTYPER_PP0b00 .equ GPIO_OTYPER_OD0b01 .equ GPIO_OSPEEDR0x08 .equ GPIO_OSPEEDR_LS0b00 .equ GPIO_OSPEEDR_MS0b01 .equ GPIO_OSPEEDR_FS0b10 .equ GPIO_OSPEEDR_HS0b11 .equ GPIO_PUPDR0x0c .equ GPIO_PUPDR_NOPUP0b00 .equ GPIO_PUPDR_PUP0b01 .equ GPIO_PUPDR_PDOWN0b10 .equ GPIO_IDR0x10 .equ GPIO_ODR0x14 .equ SYST_BASE0xE000E010 .equ SYST_CSR0x0 .equ SYST_RVR0x4 .equ SYST_CVR0x8 .equ SYST_CALIB0xC .equ SYST_RVR_MASK0x00ffffff .equ SYST_CSR_CLKSOURCE0x00000004 .equ SYST_CSR_TICKINT0x00000002 .equ SYST_CSR_ENABLE0x00000001
// file: rcc.s
.syntax unified
.thumb
.include "src/periph_regs.inc"
.text
.align 2
.global rcc_gpio_enable
.thumb_func
...
(381877808) 102054282 5-listing-program
The document describes a program listing for an adaptive FIR LMS noise cancellation filter implemented on a TMS320C613 DSP. The FIR filter structure and LMS algorithm for updating filter coefficients are explained. Noise inputs include 100Hz sinusoidal noise and burst noise. The program provides selectable output types including original signal, noise signal, filtered noise signal, and error signal.
Programming A Robot Using
This document discusses programming a robot using ICC AVR ver 7.5, including how to install and use the software to compile and build code. It also covers important microcontroller concepts like I/O ports, analog to digital conversion, and provides code examples for motion control, line following, and turning the buzzer and LED display on/off.
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This document discusses using JavaScript for embedded programming on microcontrollers. It introduces Espruino, which allows programming microcontrollers using JavaScript. Espruino provides inexpensive hardware with peripherals and libraries, making it suitable for hobbyists and prototyping. In contrast to Arduino, Espruino includes a debugger. The document demonstrates examples of using Espruino to read temperature and humidity sensors and expose sensor data over Bluetooth Low Energy. It encourages exploring Espruino and related projects like Tessel and Neonious for embedded JavaScript development.
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This document defines functions for displaying numeric values on a 7-segment display using an Arduino. It sets latch, clock, and data pins as outputs to control the display. The disNum() function takes in a numeric value, position, and decimal flag and outputs the corresponding 7-segment display value. The showNum() function takes a double value, converts it to long, extracts each digit, and calls disNum() to display the number on the 7-segment display one position at a time.
Code
This C program is used to take attendance of employees using RFID cards. It defines an array of employee structures with name, ID, and attendance count. When an RFID card is scanned, the ID is received and compared to the employee records. If not already counted for the day, the employee's attendance is marked and name/ID printed to a terminal. Attendance records can be reset for the day. It initializes serial communication and an LCD display to provide feedback to users.
Metal detecting robot sketch
This document defines functions to control a servo motor and DC motors to move a robot forward, backward, left, and right. It uses an ultrasonic sensor to scan the area and detect obstacles, and directs the robot to turn right, back up and turn right, or turn left depending on where the obstacle is detected to avoid collisions. The robot moves forward and calls the scan function in a loop to continually check for obstacles as it moves.
How do I draw the Labview code for pneumatic cylinder(air pistion). .pdf
How do I draw the Labview code for pneumatic cylinder(air pistion). (Start with banana-plug>>
Pneumatic cylinder(air pistion) moves back and forward certain times or certain seconds>> end)
Solution
#include
#include
#include
#include
#include \"RTClib.h\"
#define LOG_INTERVAL 1 // milsec betweens entries
#define SYNC_INTERVAL 100
uint32_t syncTime =0;
RTC_DS1307 RTC; // Real Time Clock
// On the Ethernet Shield, CS is pin 4. Note that even if it\'s not
// used as the CS pin, the hardware CS pin (10 on most Arduino boards,
// 53 on the Mega) must be left as an output or the SD library
// functions will not work.
const int chipSelect = 10;
//switch inputs and variables
const int kPinReedSwitch1 = 22;
const int kPinReedSwitch2 = 24;
const int relayPin = 26;
int strokedown = 0;
int inc = 0;
int precountA =0;
int precountB = 0;
int count = 0;
int runcycles = 20;
int reset = 0;
int initial = 1;
int start =1;
int LinearPot1Pin = A0; // select the input pin for the potentiometer
float sensorValue = 0.0; // variable to store the value coming from the sensor
int MC_travel = 0;
int on =0;
//logging file
File logfile;
LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
void error(char *str)
{
Serial.print(\"error: \");
Serial.println(str);
while(1);
}
void setup()
{
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}
// Input pins for Arduino
pinMode(kPinReedSwitch1, INPUT_PULLUP);
pinMode(kPinReedSwitch2, INPUT_PULLUP);
pinMode(relayPin, OUTPUT);
Serial.print(\"Initializing SD card...\");
// make sure that the default chip select pin is set to
// output, even if you don\'t use it:
pinMode(53, OUTPUT);
// see if the card is present and can be initialized:
if (!SD.begin(10,11,12,13)) {
Serial.println(\"Card failed, or not present\");
// don\'t do anything more:
return;
}
Serial.println(\"card initialized.\");
// creating a new file for data logger
char filename[] = \"LOGGER00.CSV\";
for (uint8_t i = 0; i < 100; i++){
filename[6] = i/10 + \'0\';
filename[7] = i%10 + \'0\';
if(! SD.exists(filename)){
logfile = SD.open(filename, FILE_WRITE);
break;
}
}
if (!logfile) {
error(\"couldnt create file\");
}
Serial.print(\"Logging to:\");
Serial.println(filename);
logfile.println(\"MC Travel\");
// LCD initialization
lcd.begin(20,4);
lcd.clear();
lcd.setCursor(0,0);
lcd.print(\"Count: \");
lcd.setCursor(0,1);
lcd.print(\"MC Travel: in\");
}
void loop()
{
for(int i = 1; i < 2; i++ )
//an initialization routine just to get cylinder to \"home\"
//although should never really be away from home
{
digitalWrite(relayPin, HIGH);
delay(200);
digitalWrite(relayPin, LOW);
delay (2000);
}
while( count <= runcycles){
if( start ==1 && digitalRead(kPinReedSwitch1)==HIGH){
digitalWrite(relayPin, HIGH);
}
else if (digitalRead(kPinReedSwitch1) == LOW)
// turns on relay when reed switch A is triggered
// Logic reversed because of pullup resistors
{
strokedown = 1;
precountA =1;
start=0;// .
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Two digit-countdown-timer
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