Using ezTime with nodemcu-32s w/64x32 HUb75 LED Matrix

[heffnerm2]

I've got it able to display time dma_display->print(myTZ.dateTime("m-j-y")); , however i cannot get it to update the string in real time. I tried
if (secondChanged()) {
dma_display->print(myTZ.dateTime("m-j-y"));
}
and it overwrites the initial display ever second without erasing the original.

How can i get it to "replace' the original digits with the new ones?

Thanks

[Pius Onyema Ndukwu]

I will need to see more of your code, in order to help.
Have you tried printing to the serial monitor, to see if the time changes?

[heffnerm2]

Serial monitor doesn't change. Here's whole code:
#include <SPI.h>

#include <Wire.h>
#include <Adafruit_SHT31.h>
#include <WiFi.h>
#include <WiFiAP.h>
#include <WiFiClient.h>
#include <WiFiGeneric.h>
#include <WiFiMulti.h>
#include <WiFiScan.h>
#include <WiFiServer.h>
#include <WiFiSTA.h>
#include <WiFiType.h>
#include <WiFiUdp.h>
#include <ESP32-HUB75-MatrixPanel-I2S-DMA.h>
#include <Adafruit_GFX.h>
#include <Adafruit_GrayOLED.h>
#include <Adafruit_SPITFT.h>
#include <Adafruit_SPITFT_Macros.h>
#include <gfxfont.h>
#include <FastLED.h>
#include <ezTime.h>
//#include <TimeLib.h>
//#include "sntp.h"
//#include "time.h"

//Configuration
const int panelResX = 64; // Number of pixels wide of each INDIVIDUAL panel module.
const int panelResY = 32; // Number of pixels tall of each INDIVIDUAL panel module.
const int panel_chain = 1; // Total number of panels chained one to another

//bool secondChanged();

#define myTZ_POSIX TZ= EST -5 EDT ,M3 .5 .0 /2 ,m10 .5 .0 /3

//bool enableHeater = false;
//uint8_t loopCnt = 0;

//Adafruit_SHT31 sht31 = Adafruit_SHT31();

char ssid[] = "PZRG4";
char pass[] = "erica610";

//float Ct = sht31.readTemperature();
//float Ih = sht31.readHumidity();
//float It = (Ct*1.8)+32;

MatrixPanel_I2S_DMA *dma_display = nullptr;

Timezone myTZ;

uint16_t myBLACK = dma_display->color565(0, 0, 0);
uint16_t myWHITE = dma_display->color565(255, 255, 255);
uint16_t myRED = dma_display->color565(255, 0, 0);
uint16_t myGREEN = dma_display->color565(0, 255, 0);
uint16_t myBLUE = dma_display->color565(0, 0, 255);

const int defaultBrightness = (40*255)/100; // full (100%) brightness

int16_t xOne, yOne;
uint16_t w, h;

void displaySetup() {

HUB75_I2S_CFG mxconfig(
panelResX, // module width
panelResY, // module height
panel_chain // Chain length
);

// If you are using a 64x64 matrix you need to pass a value for the E pin
// The trinity connects GPIO 18 to E.
// This can be commented out for any smaller displays (but should work fine with it)
//mxconfig.gpio.e = 18;

// May or may not be needed depending on your matrix
// Example of what needing it looks like:
// mrcodetastic/ESP32-HUB75-MatrixPanel-DMA#134 (comment)
mxconfig.clkphase = false;

// Some matrix panels use different ICs for driving them and some of them have strange quirks.
// If the display is not working right, try this.
//mxconfig.driver = HUB75_I2S_CFG::FM6126A;

dma_display = new MatrixPanel_I2S_DMA(mxconfig);
dma_display->begin();
}

void setup() {

Serial.begin(115200);

WiFi.begin("PZRG4", "erica610");

/*

• Serial.println("SHT31 test");
  if (! sht31.begin(0x44)) { // Set to 0x45 for alternate i2c addr
  Serial.println("Couldn't find SHT31");
  while (1) delay(1);
  }
  */

waitForSync();

while (WiFi.status() != WL_CONNECTED) {
Serial.print(".");
delay(1000);
}

Serial.print("Attempting to connect to Network named: ");
Serial.println(ssid); // print the network name (SSID);

Serial.println("");
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);

/* // Set NTP polling interval to 60 seconds. Way too often, but good for demonstration purposes.
setInterval(60);

// Make ezTime show us what it is doing
setDebug(INFO);*/

myTZ.setLocation(F("America/New_York"));
Serial.println (F("New York: "));
Serial.println (myTZ.dateTime ("j-m-y h:i:s A T"));

displaySetup();

dma_display->clearScreen();
dma_display->fillScreen(myBLACK);

dma_display->setTextSize(1); // size == 8 pixels high
dma_display->setTextWrap(false); // N.B!! Don't wrap at end of line

// Pointers to this variable will be passed into getTextBounds,
// they will be updated from inside the method

dma_display->getTextBounds("1234567890", 0, 0, &xOne, &yOne, &w, &h);
int xPosition = dma_display->width() / 2 - w / 2 + 1;
dma_display->setCursor(xPosition, 0);
dma_display->setTextColor(myBLUE);
dma_display->print("33f 45%");

dma_display->getTextBounds("72F 50%", 0, 0, &xOne, &yOne, &w, &h);
xPosition = dma_display->width() / 2 - w / 2 + 1;
dma_display->setCursor(xPosition, 8);
dma_display->setTextColor(myGREEN);
dma_display->print("73f 45%");

/* dma_display->getTextBounds("11:15:11am", 0, 0, &xOne, &yOne, &w, &h);
xPosition = dma_display->width() / 2 - w / 2 + 1;
dma_display->setCursor(xPosition, 16);
dma_display->setTextColor(myWHITE);
dma_display->print(myTZ.dateTime ("g:i:sa"));
*/
dma_display->getTextBounds("02-21-22", 0, 0, &xOne, &yOne, &w, &h);
xPosition = dma_display->width() / 2 - w / 2 + 1;
dma_display->setCursor(xPosition, 24);
dma_display->setTextColor(myRED);
dma_display->print(myTZ.dateTime ("m-j-y"));

//dma_display->fillScreen(myBLACK);

//delay(1000);

}

void loop() {

void events();{

if (secondChanged()) {

dma_display->getTextBounds("11:15:11am", 0, 0, &xOne, &yOne, &w, &h);
int xPosition = dma_display->width() / 2 - w / 2 + 1;
dma_display->setCursor(xPosition, 16);
dma_display->setTextColor(myWHITE);
dma_display->print(myTZ.dateTime ("g:i:sa"));
//dma_display->print(myTZ.dateTime("m-j-y"));
}
}

[heffnerm2]

Centered Text 1_3_23.txt

Serial monitor doesn't change.

[Pius Onyema Ndukwu]

@heffnerm2 , your void event function is inside the void loop, you can't create a function inside another function

Also, there are some errors in the void loop. Did this code compile?

[heffnerm2]

I cleaned it up, yes it does compile and run. I get the displays i expected Temp and Humidity inside and outside and time/date, but it does not update time/date

[Centered Text 1_3_23.txt] (https://github.com/ropg/ezTime/files/10339308/Centered.Text.1_3_23.txt)