I want to show float values on Menu but how?

[akinciemre]

Hey guys,

I have 3 each max31865 module to measure temperatures.
The problem is I am getting error. Temperature values are at float type.
I tried to update menu but it stayed same

// Temperature Variables

float temperature1;
float temperature2;
float temperature3;


extern MenuItem* tempObs[];

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LcdMenu menu(LCD_ROWS, LCD_COLS);

MAIN_MENU(
  ITEM_SUBMENU("Relay Test", relayTest),
  ITEM_SUBMENU("Temp. Observing", tempObs)
);

// Sub Menu 1: Relays

SUB_MENU(relayTest, mainMenu,
         ITEM_TOGGLE("Trig Relay 1", toggleRelay1),
         ITEM_TOGGLE("Trig Relay 2", toggleRelay2),
         ITEM_TOGGLE("Trig Relay 3", toggleRelay3)
        );
SUB_MENU(tempObs, mainMenu,
         ITEM_BASIC(temperature1),
         ITEM_BASIC(temperature2),
         ITEM_BASIC(temperature3)
        );
        
static void tempMeas(void* pvParameters) {
  (void)pvParameters;

  for (;;) {
    temperature1 = thermo1.temperature(RNOMINAL, RREF);
    temperature2 = thermo2.temperature(RNOMINAL, RREF);
    temperature3 = thermo3.temperature(RNOMINAL, RREF);
     vTaskDelay(1000);
  }
}

[forntoh]

Try this

LcdMenu menu(LCD_ROWS, LCD_COLS);

MAIN_MENU(
  ITEM_SUBMENU("Relay Test", relayTest),
  ITEM_SUBMENU("Temp. Observing", tempObs)
);

// Sub Menu 1: Relays

SUB_MENU(relayTest, mainMenu,
  ITEM_TOGGLE("Trig Relay 1", toggleRelay1),
  ITEM_TOGGLE("Trig Relay 2", toggleRelay2),
  ITEM_TOGGLE("Trig Relay 3", toggleRelay3)
);

SUB_MENU(tempObs, mainMenu,
  ITEM_BASIC(""),
  ITEM_BASIC(""),
  ITEM_BASIC("")
);
        
static void tempMeas(void* pvParameters) {
  (void)pvParameters;

  char buffer[8];  // Buffer big enough for 7-character float

  for (;;) {
    temperature1 = thermo1.temperature(RNOMINAL, RREF);
    temperature2 = thermo2.temperature(RNOMINAL, RREF);
    temperature3 = thermo3.temperature(RNOMINAL, RREF);

    menu[2]->getSubMenu()[1]->setText(dtostrf(temperature1, 6, 2, buffer));  // value, width, precision, buffer
    menu[2]->getSubMenu()[2]->setText(dtostrf(temperature2, 6, 2, buffer)); // value, width, precision, buffer
    menu[2]->getSubMenu()[3]->setText(dtostrf(temperature3, 6, 2, buffer)); // value, width, precision, buffer
    vTaskDelay(1000);
  }
}

[akinciemre]

I was using 3.3.3 but I've upgraded to 3.5.3.
But my keypad not working still.
Do you want to see full code?

[forntoh]

Yeah

[akinciemre]

// Libraries
#include <MapleFreeRTOS900.h>
#include <ItemSubMenu.h>
#include <ItemCommand.h>
#include <ItemToggle.h>
#include <ItemInput.h>
#include <ItemProgress.h>
#include <Adafruit_MAX31865.h>
#include <LcdMenu.h>

// Relays Definings
#define RELAY1 PA11
#define RELAY2 PA12
#define RELAY3 PA15

// PT100 ref ve nominal specifiyings
#define RREF      430.0
#define RNOMINAL  100.0

// 4x20 LCD Display
#define LCD_ROWS 4
#define LCD_COLS 20

// Button Definings
#define UP_PIN    PA0
#define DOWN_PIN  PA1
#define BACK_PIN  PA2
#define RIGHT_PIN PA3
#define ENTER_PIN PB0

//MAX31865 Pins
#define DI_PIN PA7
#define DO_PIN PA6
#define CLK_PIN PA5
#define CS1_PIN PA4
#define CS2_PIN PB1
#define CS3_PIN PB10

// MAX31865 SPI
Adafruit_MAX31865 thermo1 = Adafruit_MAX31865(CS1_PIN, DI_PIN, DO_PIN, CLK_PIN);
Adafruit_MAX31865 thermo2 = Adafruit_MAX31865(CS2_PIN, DI_PIN, DO_PIN, CLK_PIN);
Adafruit_MAX31865 thermo3 = Adafruit_MAX31865(CS3_PIN, DI_PIN, DO_PIN, CLK_PIN);

// Temperature Variables

float temperature1;
float temperature2;
float temperature3;

char buffer[10];

bool relay1State, relay2State, relay3State;
// Main Menu Definings
extern MenuItem* relayTest[];
extern MenuItem* tempObs[];

// Relay 1 Toggle
void toggleRelay1(uint16_t isOn) {
  if (isOn) {    
    relay1State = HIGH;
  } else {

    digitalWrite(RELAY1, LOW);
    relay1State = LOW;
  }
}

// Relay 2 Toggle
void toggleRelay2(uint16_t isOn) {
  if (isOn) {
    // Turn on the relay
    digitalWrite(RELAY2, HIGH);
    relay2State = HIGH;
  } else {
    // Turn off the relay
    digitalWrite(RELAY2, LOW);
    relay2State = LOW;
  }
}

// Relay 3 Toggle
void toggleRelay3(uint16_t isOn) {
  if (isOn) {
    digitalWrite(RELAY3, HIGH);
    relay3State = HIGH;
  } else {
    digitalWrite(RELAY3, LOW);
    relay3State = LOW;
  }
}

//------------------------------------- Creating Main Menu -------------------------------------//

LcdMenu menu(LCD_ROWS, LCD_COLS);

MAIN_MENU(
  ITEM_SUBMENU("Relay Test", relayTest),
  ITEM_SUBMENU("Temp. Observing", tempObs)
);

// Sub Menu 1: Relays

SUB_MENU(relayTest, mainMenu,
         ITEM_TOGGLE("Trig Relay 1", toggleRelay1),
         ITEM_TOGGLE("Trig Relay 2", toggleRelay2),
         ITEM_TOGGLE("Trig Relay 3", toggleRelay3)
        );

// Sub Menu 2: Temperature Values
SUB_MENU(tempObs, mainMenu,
         ITEM_BASIC(""),
         ITEM_BASIC(""),
         ITEM_BASIC("")
        );
// RTOS func. to measure temperature value
static void tempMeas(void* pvParameters) {
  (void)pvParameters;
 char buffer[8];
  for (;;) {
    temperature1 = thermo1.temperature(RNOMINAL, RREF);
    temperature2 = thermo2.temperature(RNOMINAL, RREF);
    temperature3 = thermo3.temperature(RNOMINAL, RREF);
    menu[2]->getSubMenu()[1]->setText(dtostrf(temperature1, 6, 2, buffer));  // value, width, precision, buffer
    menu[2]->getSubMenu()[2]->setText(dtostrf(temperature2, 6, 2, buffer)); // value, width, precision, buffer
    menu[2]->getSubMenu()[3]->setText(dtostrf(temperature3, 6, 2, buffer)); // value, width, precision, buffer
    vTaskDelay(1000);
  }
}

// RTOS func. to use keypad
static void keyPad(void* pvParameters) {
  (void)pvParameters; // Unused parameter

  for (;;) {
    // ---Menu control start---
    static bool upPressed = false;
    static bool downPressed = false;
    static bool backPressed = false;
    static bool rightPressed = false;
    static bool enterPressed = false;

    bool upState = digitalRead(UP_PIN) == LOW;
    bool downState = digitalRead(DOWN_PIN) == LOW;
    bool backState = digitalRead(BACK_PIN) == LOW;
    bool rightState = digitalRead(RIGHT_PIN) == LOW;
    bool enterState = digitalRead(ENTER_PIN) == LOW;

    if (upState && !upPressed) {
      menu.up();
      upPressed = true;
    }
    else if (!upState && upPressed) {
      upPressed = false;
    }

    if (downState && !downPressed) {
      menu.down();
      downPressed = true;
    }
    else if (!downState && downPressed) {
      downPressed = false;
    }

    if (backState && !backPressed) {
      menu.back();
      backPressed = true;
    }
    else if (!backState && backPressed) {
      backPressed = false;
    }

    if (rightState && !rightPressed) {
      menu.right();
      rightPressed = true;
    }
    else if (!rightState && rightPressed) {
      rightPressed = false;
    }

    if (enterState && !enterPressed) {
      menu.enter();
      enterPressed = true;
    }
    else if (!enterState && enterPressed) {
      enterPressed = false;
    }
    // ---Menu control end---
  }
}
//--------------------------------------------------------------
void setup() {

  disableDebugPorts();
  delay(100); // for PA15
  enableDebugPorts();
  // Button pinMode's must be input
  pinMode(UP_PIN, INPUT);
  pinMode(DOWN_PIN, INPUT);
  pinMode(BACK_PIN, INPUT);
  pinMode(RIGHT_PIN, INPUT);
  pinMode(ENTER_PIN, INPUT);

  // LCD activation
  menu.setupLcdWithMenu(0x20, mainMenu);

  // Relay pinMode's must be output
  pinMode(RELAY1, OUTPUT);
  pinMode(RELAY2, OUTPUT);
  pinMode(RELAY3, OUTPUT);

  digitalWrite(RELAY1, LOW);
  digitalWrite(RELAY2, LOW);
  digitalWrite(RELAY3, LOW);
  
  // Beginning of temperature measuring
  thermo1.begin(MAX31865_3WIRE);
  thermo2.begin(MAX31865_3WIRE);
  thermo3.begin(MAX31865_3WIRE);

  // Run RTOS func.
  xTaskCreate(tempMeas, "Task1", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY + 1, NULL);
  xTaskCreate(keyPad, "Task3", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY + 2, NULL);
  vTaskStartScheduler();
}



void loop() {}

[forntoh]

Do you get any error when you compile this, can you post the errors too.

[akinciemre]

There is no error. It is compiling successfully

[forntoh]

Have a look at this gist https://gist.github.com/forntoh/25044b0bfb3271321a718bdac84654c5 and adapt your code accordingly.
I used random float numbers to illustrate how it works since I don't know your circuit and don't have all the electronics you used.

Here's a video of it working

Screen.Recording.2024-02-21.at.00.32.42.mov

[akinciemre]

Great thanks. It worked!! Thank you so much. By the way I had to change 2 code blocks from library. I want to let you know.
This is from ItemProgress.h

there was a itoa function I replaced with sprintf function

and this is from LcdMenu.h. I've replaced lcd->init with lcd->begin

I am using STM32 libraries. Maybe you need to know these.

Thank you again

[forntoh]

Thanks too, glad I was able to help.

• I will switch to sprintf, I just realised that itoa() is not part of the C++ standard, and as such is not available in many common runtimes.
• I am currently investigating adding the possibility for anyone to use the library with any display (see feat: Decouple Menu Controller and Display #153), it's complicated and will take a long very time before I succeed. If you have any input, add a comment or even help out with code 😃

[akinciemre]

It would be an honour. But I am kinda new in using git.
But I wish you can add a comment next to sprintf like "Thanks to Akinci".
It will make me happier :D

[forntoh]

This is another issue which is not related to this library, you have to figure out how to use your desired input method with this library (they library allows you to use whatever input method you have), the example code I provided used serial as input device, since I don't have push buttons to connect. It should work if you update the code I provided to match your circuit. The code is not a copy-paste solution, you absolutely need to adapt it to your circuit.