RTC controlling LED's

Projects General Guidance
1

Hi guys, I'm trying to use my RTC to control LED's. For example at a certain time the LED's will change colour. I am getting the following issue "expected primary-expression before ' , ' token." on the lines
{
else
digitalWrite(uint32_t, LOW);
}

Any help would be great
Thanks

#include <Wire.h>
#include "RTClib.h"
RTC_DS1307 rtc;

#include <Adafruit_NeoPixel.h>
#define PIN 3
#define NUM_LIGHTS 24
Adafruit_NeoPixel strip = Adafruit_NeoPixel(NUM_LIGHTS, PIN, NEO_GRB + NEO_KHZ800);

void setup () {
strip.begin();
strip.setBrightness(100);
strip.show();

Serial.begin(57600);
#ifdef AVR
Wire.begin();
#else
Wire1.begin(); // Shield I2C pins connect to alt I2C bus on Arduino Due
#endif
rtc.begin();

if (! rtc.isrunning()) {
Serial.println("RTC is NOT running!");
// following line sets the RTC to the date & time this sketch was compiled
// rtc.adjust(DateTime(F(DATE), F(TIME)));
// This line sets the RTC with an explicit date & time, for example to set
// January 21, 2014 at 3am you would call:
// rtc.adjust(DateTime(2014, 1, 21, 3, 0, 0));
}}

void loop () {
// put your main code here, to run repeatedly:
uint32_t low = strip.Color(255, 100, 0);
uint32_t high = strip.Color(255, 0, 0);
// uint32_t night = strip.Color(255, 0, 0);

// Turn them off
//for( int i = 0; i<NUM_LIGHTS; i++){
//strip.setPixelColor(i, high);
//strip.show();}

DateTime now = rtc.now();

Serial.print(now.day(), DEC);
Serial.print('-');
Serial.print(now.month(), DEC);
Serial.print('-');
Serial.print(now.year(), DEC);
Serial.print(' ');
Serial.print(now.hour(), DEC);
Serial.print(':');
Serial.print(now.minute(), DEC);
Serial.print(':');
Serial.print(now.second(), DEC);
Serial.println();

// if the time/date is at the given point, rLED will be on, else it will be off
if(now.minute() == 20) {
digitalWrite(uint32_t, HIGH);
}

{
else
digitalWrite(uint32_t, LOW);
}

Serial.println();
delay(1000);

}

2

Your code Auto formatted in the IDE to improve its layout and posted here in code tags as suggested in Read this before posting a programming question. Please do the same in future

#include <Wire.h>
#include "RTClib.h"
RTC_DS1307 rtc;

#include <Adafruit_NeoPixel.h>
#define PIN 3
#define NUM_LIGHTS  24
Adafruit_NeoPixel strip = Adafruit_NeoPixel(NUM_LIGHTS, PIN, NEO_GRB + NEO_KHZ800);

void setup ()
{
  strip.begin();
  strip.setBrightness(100);
  strip.show();
  Serial.begin(57600);
#ifdef AVR
  Wire.begin();
#else
  Wire1.begin(); // Shield I2C pins connect to alt I2C bus on Arduino Due
#endif
  rtc.begin();
  if (! rtc.isrunning())
  {
    Serial.println("RTC is NOT running!");
    // following line sets the RTC to the date & time this sketch was compiled
    // rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
    // This line sets the RTC with an explicit date & time, for example to set
    // January 21, 2014 at 3am you would call:
    // rtc.adjust(DateTime(2014, 1, 21, 3, 0, 0));
  }
}

void loop ()
{
  // put your main code here, to run repeatedly:
  uint32_t low = strip.Color(255, 100, 0);
  uint32_t high = strip.Color(255, 0, 0);
  // uint32_t night = strip.Color(255, 0, 0);
  // Turn them off
  //for( int i = 0; i<NUM_LIGHTS; i++){
  //strip.setPixelColor(i, high);
  //strip.show();}
  DateTime now = rtc.now();
  Serial.print(now.day(), DEC);
  Serial.print('-');
  Serial.print(now.month(), DEC);
  Serial.print('-');
  Serial.print(now.year(), DEC);
  Serial.print(' ');
  Serial.print(now.hour(), DEC);
  Serial.print(':');
  Serial.print(now.minute(), DEC);
  Serial.print(':');
  Serial.print(now.second(), DEC);
  Serial.println();
  // if the time/date is at the given point, rLED will be on, else it will be off
  if (now.minute() == 20)
  {
    digitalWrite(uint32_t, HIGH);
  }
  {
    else
      digitalWrite(uint32_t, LOW);
  }
  Serial.println();
  delay(1000);
}

The curly brackets are in a mess in this section

  // if the time/date is at the given point, rLED will be on, else it will be off
  if (now.minute() == 20)
  {
    digitalWrite(uint32_t, HIGH);
  }
  {  //<<<<<<<<<<<<<<  what is this doing here ?
    else
      digitalWrite(uint32_t, LOW);
  }
3

Also, this:

digitalWrite(uint32_t, LOW);

makes no sense.

The first argument of digitalWrite should be the pin number, not a data type.