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Wifi Shield V3 Problems

userHead Account cancelled 2018-06-19 02:03:50 2205 Views0 Replies
Hello everyone,

I've tried to find a way to solve this problem, but it turns out that no one topic has been resolved properly.

I have 2 DFRobot Wifi Shield (which one version 2.2, the other one is version 3)

DFRobot Wifi Shield v2.2 I have no problem at all.

However I encountered an obstacle when using that version 3.

I've tried to follow all the tutorials at https://www.dfrobot.com/wiki/index.php/ ... KU:TEL0078

But still can not, even I have copied the source code on the page still can not solve my problems.

My problem is that I can receive data sent from Arduino but I can not send data to Arduino.

Please help solve this problem, because if this is not resolved, then there is no point in purchasing this item.

If you want to know my code, here is my code (I copied from the link I mentioned above)
Code: Select all
#define Sleep_RQ  11  //sleep control input pin of the WIFI shield
#define Sleep_ON  12  //sleep state output pin of the WIFI shield
unsigned char flag;  //Sleep state

void setup()
{
  Serial.begin(115200);    //Baudrate
  pinMode(Sleep_ON,INPUT);
  pinMode(Sleep_RQ,OUTPUT);
  digitalWrite(Sleep_RQ,HIGH);  //Running 
  delay(100);

  Serial.println("Start!");         //Test start
  for(unsigned char i = 0;i<10;i++)  //output the state of the shield lasts 20 seconds
  {
    flag = digitalRead(Sleep_ON);
    if(0 == flag)
      Serial.println("D12=0 Sleep");
    else
      Serial.println("D12=1 Active");
    delay(1000);
  }

  Serial.println("Sleep after five second!");    //Sleep after five second
  digitalWrite(Sleep_RQ,LOW);                     //set the shield to sleep mode
  delay(5000);
  digitalWrite(Sleep_RQ,HIGH);  
  delay(100);
  Serial.println("Sleep Now!");

  for(unsigned char i = 0;i<10;i++)      //output the state of the shield lasts 20 seconds
  {
    flag = digitalRead(Sleep_ON);
    if(0 == flag)
      Serial.println("D12=0 Sleep");
    else
      Serial.println("D12=1 Active");
    delay(1000);
  }   

  Serial.println("Weak up  Now!");
  digitalWrite(Sleep_RQ,LOW);         //set the shield to normal working state
  delay(2000);
  digitalWrite(Sleep_RQ,HIGH);  
  delay(100);

  for(unsigned char i = 0;i<10;i++)   //output the state of the shield lasts 20 seconds
  {
    flag = digitalRead(12);
    if(0 == flag)
      Serial.println("D12=0 Sleep");
    else
      Serial.println("D12=1 Active");
    delay(1000);
  } 
  Serial.println("Test RX and TX!");
}

void loop()               
{
  if(Serial.available()>0)     //Print what serial received.
  {
    char inbyte=Serial.read();
    Serial.print(inbyte);
  }
}
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