uses for the first times a wio GPS Boarders

Hi everybody,

I am using a wio GPS Boarder for the first time. I did all the procedure described on seed’s website to configure wio with arduino IDE but when compile my code (for temperature and humidity sensor) , a lot of time it shows that the croquits can’t be compiled and sometimes it shows compilation finish but I can’t see the result in Serial monitor.

I am using windows 10, and just the USB not battery to power the boarder.

have someone already resolve this kind of problem or if someone how to resolve it , please a need your help.

Hi there~

Please post the software code. For the Serial print, you have to use SerialUSB.print instead of Serial.print due to it using SAMD21 chip. thanks.

// Example testing sketch for various DHT humidity/temperature sensors

// Written by ladyada, public domain

#include “DHT.h”

#define DHTPIN 2 // what pin we’re connected to

// Uncomment whatever type you’re using!

#define DHTTYPE DHT11 // DHT 11

//#define DHTTYPE DHT22 // DHT 22 (AM2302)

//#define DHTTYPE DHT21 // DHT 21 (AM2301)

// Connect pin 1 (on the left) of the sensor to +5V

// Connect pin 2 of the sensor to whatever your DHTPIN is

// Connect pin 4 (on the right) of the sensor to GROUND

// Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor


void setup()



Serial.println(“DHTxx test!”);

/if using WIO link,must pull up the power pin./


// digitalWrite(PIN_GROVE_POWER, 1);



void loop()


// Reading temperature or humidity takes about 250 milliseconds!

// Sensor readings may also be up to 2 seconds ‘old’ (its a very slow sensor)

float h = dht.readHumidity();

float t = dht.readTemperature();

// check if returns are valid, if they are NaN (not a number) then something went wrong!

if (isnan(t) || isnan(h))


SerialUSB.println(“Failed to read from DHT”);




SerialUSB.print(“Humidity: “);


SerialUSB.print(” %\t”);

SerialUSB.print(“Temperature: “);


SerialUSB.println(” *C”);



hello, everything is fine with the code but when I try to upload it gives me port error.

Hi there~

  1. Please change the below serial to serialusb.

</s>Serial.begin(9600); Serial.println("DHTxx test!"); <e>

  1. If you can not find the port, you can double tap the reset button. thanks.