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ina266_data_logger.ino
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ina266_data_logger.ino
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#include "INA226.h"
#include "Wire.h"
#define INA226_SHUNT_VOLTAGE 0x01
#define INA226_BUS_VOLTAGE 0x02
const byte INA226_address = 0x40;
INA226 INA(INA226_address);
void setup() {
Serial.begin(115200);
Serial.println(__FILE__);
pinMode(7, INPUT_PULLUP);
pinMode(5, OUTPUT); // pin 5 is used for debugging
if (!INA.begin() ) {
Serial.println("could not connect. Fix and Reboot");
}
Wire.setClock(400000);
INA.setMaxCurrentShunt(0.5, 0.107);
INA.setBusVoltageConversionTime(2);
INA.setShuntVoltageConversionTime(2);
INA.setAlertRegister(0x0400);
}
void loop() {
Serial.println(INA.getCurrentLSB(), 8);
Serial.print("#!#!#!\n"); // data start sequence
while (1) {
while (PIND&(1<<7)) {;}
PIND = 1<<5;
INA.getAlertFlag();
byte out[4];
uint16_t* val = (uint16_t*)&out[0];
*val = INA.getRegister(INA226_SHUNT_VOLTAGE); // shunt voltage
val++;
*val = INA.getRegister(INA226_BUS_VOLTAGE); // bus voltage
Serial.write(out, 4);
PIND = 1<<5;
}
}