Hi All
I copied this sketch from the internet when I compile the code i get an error message as below my coding skills are not the greatest but are improving at a snails pace any help woud be greafully appreciated
error code
C:\Users\John\AppData\Local\Temp\Temp2_max7219-clock-dht.zip\max7219-clock-dht\max7219-clock-dht.ino: In function 'void loop()':
max7219-clock-dht:214:20: error: 'numeric7Seg' was not declared in this scope
P.setFont(0, numeric7Seg);
^~~~~~~~~~~
exit status 1
'numeric7Seg' was not declared in this scope
// Header file includes
#include <MD_Parola.h>
#include <MD_MAX72xx.h>
#include <DHT.h>
#include <SPI.h>
#include <Wire.h>
#include "Font7Seg.h"
// Define the number of devices we have in the chain and the hardware interface
// NOTE: These pin numbers will probably not work with your hardware and may
// need to be adapted
#define HARDWARE_TYPE MD_MAX72XX::PAROLA_HW
#define MAX_DEVICES 4 // Define the number of displays connected
#define CLK_PIN 13 // CLK or SCK
#define DATA_PIN 11 // DATA or MOSI
#define CS_PIN 10 // CS or SS
#define SPEED_TIME 75 // Speed of the transition
#define PAUSE_TIME 0
#define MAX_MESG 20
// These are for the clock
#define DS1307_ADDRESS 0x68
// These are for the temperature
#define DHTPIN 2
#define DHTTYPE DHT22
#define TIMEDHT 1000
// Global variables
uint8_t wday, mday, month, year;
uint8_t hours, minutes, seconds;
char szTime[9]; // mm:ss\0
char szMesg[MAX_MESG + 1] = "";
float humidity, celsius, fahrenheit;
uint8_t degC[] = { 6, 3, 3, 56, 68, 68, 68 }; // Deg C
uint8_t degF[] = { 6, 3, 3, 124, 20, 20, 4 }; // Deg F
uint8_t clear = 0x00;
uint32_t timerDHT = TIMEDHT;
DHT dht(DHTPIN, DHTTYPE);
// Hardware SPI connection
MD_Parola P = MD_Parola(HARDWARE_TYPE, CS_PIN, MAX_DEVICES);
void beginDS1307()
{
// Read the values (date and time) of the DS1307 module
Wire.beginTransmission(DS1307_ADDRESS);
Wire.write(clear);
Wire.endTransmission();
Wire.requestFrom(DS1307_ADDRESS, 0x07);
seconds = bcdToDec(Wire.read());
minutes = bcdToDec(Wire.read());
hours = bcdToDec(Wire.read() & 0xff);
wday = bcdToDec(Wire.read());
mday = bcdToDec(Wire.read());
month = bcdToDec(Wire.read());
year = bcdToDec(Wire.read());
}
uint8_t decToBcd(uint8_t value)
{
return ((value / 10 * 16) + (value % 10));
}
uint8_t bcdToDec(uint8_t value)
{
return ((value / 16 * 10) + (value % 16));
}
// Code for reading clock time
void getTime(char *psz, bool f = true)
{
sprintf(psz, "%02d%c%02d", hours, (f ? ':' : ' '), minutes);
}
// Code for reading clock date
void getDate(char *psz)
{
char szBuf[10];
sprintf(psz, "%d %s %04d", mday , mon2str(month, szBuf, sizeof(szBuf) - 1), (year + 2000));
}
// Code for get Temperature
void getTemperature()
{
// Wait for a time between measurements
if ((millis() - timerDHT) > TIMEDHT) {
// Update the timer
timerDHT = millis();
// Reading temperature or humidity takes about 250 milliseconds!
// Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
humidity = dht.readHumidity();
// Read temperature as Celsius (the default)
celsius = dht.readTemperature();
// Read temperature as Fahrenheit (isFahrenheit = true)
fahrenheit = dht.readTemperature(true);
// Check if any reads failed and exit early (to try again)
if (isnan(humidity) || isnan(celsius) || isnan(fahrenheit)) {
Serial.println("Failed to read from DHT sensor!");
return;
}
}
}
// Get a label from PROGMEM into a char array
char *mon2str(uint8_t mon, char *psz, uint8_t len)
{
static const __FlashStringHelper* str[] =
{
F("Jan"), F("Feb"), F("Mar"), F("Apr"),
F("May"), F("Jun"), F("Jul"), F("Aug"),
F("Sep"), F("Oct"), F("Nov"), F("Dec")
};
strncpy_P(psz, (const char PROGMEM *)str[mon - 1], len);
psz[len] = '\0';
return (psz);
}
char *dow2str(uint8_t code, char *psz, uint8_t len)
{
static const __FlashStringHelper* str[] =
{
F("Sunday"), F("Monday"), F("Tuesday"),
F("Wednesday"), F("Thursday"), F("Friday"),
F("Saturday")
};
strncpy_P(psz, (const char PROGMEM *)str[code - 1], len);
psz[len] = '\0';
return (psz);
}
void setup(void)
{
Wire.begin();
P.begin(2);
P.setInvert(false);
P.setZone(0, MAX_DEVICES - 4, MAX_DEVICES - 1);
P.setZone(1, MAX_DEVICES - 4, MAX_DEVICES - 1);
P.displayZoneText(1, szTime, PA_CENTER, SPEED_TIME, PAUSE_TIME, PA_PRINT, PA_NO_EFFECT);
P.displayZoneText(0, szMesg, PA_CENTER, SPEED_TIME, 0, PA_PRINT , PA_NO_EFFECT);
P.addChar('$', degC);
P.addChar('&', degF);
dht.begin();
}
void loop(void)
{
static uint32_t lastTime = 0; // Memory (ms)
static uint8_t display = 0; // Current display mode
static bool flasher = false; // Seconds passing flasher
beginDS1307();
getTemperature();
P.displayAnimate();
if (P.getZoneStatus(0))
{
switch (display)
{
case 0: // Temperature deg Celsius
P.setPause(0, 1000);
P.setTextEffect(0, PA_SCROLL_LEFT, PA_SCROLL_UP);
display++;
dtostrf(celsius, 3, 1, szMesg);
strcat(szMesg, "$");
break;
case 1: // Temperature deg Fahrenheit
P.setTextEffect(0, PA_SCROLL_UP, PA_SCROLL_DOWN);
display++;
dtostrf(fahrenheit, 3, 1, szMesg);
strcat(szMesg, "&");
break;
case 2: // Humidity
P.setTextEffect(0, PA_SCROLL_DOWN, PA_SCROLL_LEFT);
display++;
dtostrf(humidity, 3, 0, szMesg);
strcat(szMesg, "%UR");
break;
case 3: // Clock
P.setFont(0, numeric7Seg);
P.setTextEffect(0, PA_PRINT, PA_NO_EFFECT);
P.setPause(0, 0);
if ((millis() - lastTime) >= 1000)
{
lastTime = millis();
getTime(szMesg, flasher);
flasher = !flasher;
}
if ((seconds == 00) && (seconds <= 30)) {
display++;
P.setTextEffect(0, PA_PRINT, PA_WIPE_CURSOR);
}
break;
case 4: // Day of week
P.setFont(0, nullptr);
P.setTextEffect(0, PA_SCROLL_LEFT, PA_SCROLL_LEFT);
display++;
dow2str(wday, szMesg, MAX_MESG);
break;
default: // Calendar
P.setTextEffect(0, PA_SCROLL_LEFT, PA_SCROLL_LEFT);
display = 0;
getDate(szMesg);
break;
}
P.displayReset(0); // Rest zone zero
}
}