MCP3221 Basic Usage

MCP3221_BASIC.ino

#include "MCP3221.h"

const byte DEV_ADDR = 0x4D;                                           // I2C address of the MCP3221 (Change if needed)

MCP3221 mcp3221(DEV_ADDR);                                            // constructs a new MCP3221 object with the relevant I2C address

void setup() {
    Serial.begin(9600);                                               // initiallizes the Serial Communications Port (at 9600bd)
    Wire.begin();                                                     // initiallizes the I2C Communications bus
    while(!Serial);                                                   // waits for Serial Port to initialize
}

void loop() {
    Serial.print(F("\nVoltage:\t\t"));
    Serial.print(mcp3221.getVoltage());
    Serial.print(F("mV\n\n"));
    delay(750);
}