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edited Jul 21, 2019 at 23:29

I'm trying to assign the output of my function (which adjusts a DAC output) to a variable so I can print and display it in my serial monitor. Here's the code

#include <Wire.h>
#include <Adafruit_MCP4725.h>

Adafruit_MCP4725 dac;

int volza;

void setup() {
  Serial.begin(38400);
  Serial.println("Hello!");
  dac.begin(0x60);
}

void loop() {
    volza = dac.setVoltage(1095, 1); // THIS IS THE PROBLEM
    Serial.println(volza);
}

I am receiving an error because of the commented line. I knowthink it's because I am trying to return a value while inside a void loop. How do you fix this?

I'm trying to assign the output of my function (which adjusts a DAC output) to a variable so I can print and display it in my serial monitor. Here's the code

#include <Wire.h>
#include <Adafruit_MCP4725.h>

Adafruit_MCP4725 dac;

int volza;

void setup() {
  Serial.begin(38400);
  Serial.println("Hello!");
  dac.begin(0x60);
}

void loop() {
    volza = dac.setVoltage(1095, 1); // THIS IS THE PROBLEM
    Serial.println(volza);
}

I am receiving an error because of the commented line. I know it's because I am trying to return a value while inside a void loop. How do you fix this?

I'm trying to assign the output of my function (which adjusts a DAC output) to a variable so I can print and display it in my serial monitor. Here's the code

#include <Wire.h>
#include <Adafruit_MCP4725.h>

Adafruit_MCP4725 dac;

int volza;

void setup() {
  Serial.begin(38400);
  Serial.println("Hello!");
  dac.begin(0x60);
}

void loop() {
    volza = dac.setVoltage(1095, 1); // THIS IS THE PROBLEM
    Serial.println(volza);
}

I am receiving an error because of the commented line. I think it's because I am trying to return a value while inside a void loop. How do you fix this?

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asked Jul 21, 2019 at 22:04

Ali the Dazzling

How can I assign a variable to a function output in Arduino?

I'm trying to assign the output of my function (which adjusts a DAC output) to a variable so I can print and display it in my serial monitor. Here's the code

#include <Wire.h>
#include <Adafruit_MCP4725.h>

Adafruit_MCP4725 dac;

int volza;

void setup() {
  Serial.begin(38400);
  Serial.println("Hello!");
  dac.begin(0x60);
}

void loop() {
    volza = dac.setVoltage(1095, 1); // THIS IS THE PROBLEM
    Serial.println(volza);
}

I am receiving an error because of the commented line. I know it's because I am trying to return a value while inside a void loop. How do you fix this?

arduino-ide c++loop