Hello!! I am trying to use Raspberry Pi pico in Arduino using the platform Raspberry Pi Pico/ RP2040. For some codes, it is working well, like a simple blink code, where I print On when led is ON and OFF when LED is off. The message appear in monitor serial and my code run very well in Pi Pico. But in other codes, I have some issues. The monitor serial appear the message "Connecting to Raspberry Pi Pico in COM..." and after that "port monitor error command 'open' failed serial port busy. could not connect to com serial port". I've been searching for many solutions but I can't get sucess. I can run the code to Pi Pico, the only thing is not working is the monitor serial. I ran a code there and tested in Teraterm, but it can identify the port as well. I am using Windows 11 and Arduino version is 2.3.2.
Thanks for any solution!!
I'll leave the code I am trying run:
#include <Wire.h>
#include <INA226_WE.h>
#define I2C_ADDRESS 0x40
INA226_WE ina226 = INA226_WE(I2C_ADDRESS);
#define SDA_PIN 2 // Exemplo: GP2 como SDA
#define SCL_PIN 3 // Exemplo: GP3 como SCL
void setup() {
while (!Serial)
; // wait until serial comes up on Arduino Leonardo or MKR WiFi 1010
Wire.setSDA(SDA_PIN);
Wire.setSCL(SCL_PIN);
Wire.begin();
ina226.init();
/* Set Number of measurements for shunt and bus voltage which shall be averaged
Mode * * Number of samples
AVERAGE_1 1 (default)
AVERAGE_4 4
AVERAGE_16 16
AVERAGE_64 64
AVERAGE_128 128
AVERAGE_256 256
AVERAGE_512 512
AVERAGE_1024 1024*/
//ina226.setAverage(AVERAGE_16); // choose mode and uncomment for change of default
/* Set conversion time in microseconds
One set of shunt and bus voltage conversion will take:
number of samples to be averaged x conversion time x 2
Mode * * conversion time
CONV_TIME_140 140 µs
CONV_TIME_204 204 µs
CONV_TIME_332 332 µs
CONV_TIME_588 588 µs
CONV_TIME_1100 1.1 ms (default)
CONV_TIME_2116 2.116 ms
CONV_TIME_4156 4.156 ms
CONV_TIME_8244 8.244 ms */
//ina226.setConversionTime(CONV_TIME_1100); //choose conversion time and uncomment for change of default
/* Set measure mode
POWER_DOWN - INA226 switched off
TRIGGERED - measurement on demand
CONTINUOUS - continuous measurements (default)*/
//ina226.setMeasureMode(CONTINUOUS); // choose mode and uncomment for change of default
/* Set Resistor and Current Range
if resistor is 5.0 mOhm, current range is up to 10.0 A
default is 100 mOhm and about 1.3 A*/
ina226.setResistorRange(0.1, 1.3); // choose resistor 0.1 Ohm and gain range up to 1.3A
/* If the current values delivered by the INA226 differ by a constant factor
from values obtained with calibrated equipment you can define a correction factor.
Correction factor = current delivered from calibrated equipment / current delivered by INA226*/
ina226.setCorrectionFactor(0.93);
Serial.println("INA226 Current Sensor Example Sketch - Continuous");
ina226.waitUntilConversionCompleted(); //if you comment this line the first data might be zero
}
void loop() {
float shuntVoltage_mV = 0.0;
float loadVoltage_V = 0.0;
float busVoltage_V = 0.0;
float current_mA = 0.0;
float power_mW = 0.0;
ina226.readAndClearFlags();
shuntVoltage_mV = ina226.getShuntVoltage_mV();
busVoltage_V = ina226.getBusVoltage_V();
current_mA = ina226.getCurrent_mA();
power_mW = ina226.getBusPower();
loadVoltage_V = busVoltage_V + (shuntVoltage_mV / 1000);
Serial.print("Shunt Voltage [mV]: ");
Serial.println(shuntVoltage_mV);
Serial.print("Bus Voltage [V]: ");
Serial.println(busVoltage_V);
Serial.print("Load Voltage [V]: ");
Serial.println(loadVoltage_V);
Serial.print("Current[mA]: ");
Serial.println(current_mA);
Serial.print("Bus Power [mW]: ");
Serial.println(power_mW);
if (!ina226.overflow) {
Serial.println("Values OK - no overflow");
} else {
Serial.println("Overflow! Choose higher current range");
}
Serial.println();
delay(3000);
}
Edson