AT Commands

Question

Hello, I am trying to use the Serial Monitor of arduino to send AT commands to test out the shield, because the example programs did not work. However, once I send an ‘AT’ through the serial monitor there is no reply. I am using Arduino UNOr3 with ArduIDE 1.5.5. I stacked the shield on top of the Arduino.

wizdaniel · Answer

Hi damowerko Can you tell me what kind of WizFi210 which you own? A WizFi Shield & a WizFi210 library(for arduino) are operated on SPI interface. but, WizFi210-EVB was working at the UART interface. Is that right the library you used? github.com/Wiznet/WizFiShield

Damowerko · Answer

I am using the 210 shield. Yes, that is the library I used - it had compilation errors on ArduinoIDE 1.6.5 so I had to downgrade to 1.5.5. When I launch the example sketches and open serial monitor it does not go beyond checking weather the shield is responding: Serial Init Send Sync data Rcving Sync Timeout!! This is the beggining of the code where it stops: #include #include #include #include #include #include #include #define SSID "" // SSID of your AP #define Key "" // Key or Passphrase // Wi-Fi security option (NO_SECURITY, WEP_SECURITY, WPA_SECURITY, WPA2PSK_SECURITY) //#define Security WPA_SECURITY unsigned char SIP[4] = {192, 168, 1, 7}; // Server IP address to connnect unsigned int ServerPort = 5000; // Server port number WizFi2x0Class myWizFi; WizFiClient myClient; boolean Wifi_setup = false; // 1msec Timer void Timer1_ISR() { uint8_t i; myWizFi.ReplyCheckTimer.CheckIsTimeout(); } void setup() { byte retval; Serial.begin(9600); Serial.println(" Serial Init"); // initalize WizFi2x0 module: myWizFi.begin(); myClient = WizFiClient(SIP, ServerPort); // Timer1 Initialize Timer1.initialize(1000); // 1msec Timer1.attachInterrupt(Timer1_ISR); myWizFi.SendSync(); myWizFi.ReplyCheckTimer.TimerStart(3000); Serial.println("Send Sync data"); while(1) { if(myWizFi.CheckSyncReply()) { myWizFi.ReplyCheckTimer.TimerStop(); Serial.println("Rcvd Sync data"); break; } if(myWizFi.ReplyCheckTimer.GetIsTimeout()) { Serial.println("Rcving Sync Timeout!!"); // Nothing to do forever; for(;;) ; } }

wizdaniel · Answer

Hi WizFi210 shield can support 1.0.x version of arduino IDE… please try it 1.0.x IDE

KellyTurci · Answer

Hi…i am a new user here. Can you tell me what kind of WizFi210 which you own?A WizFi Shield & a WizFi210 library(for arduino) are operated on SPI interface.But, WizFi210-EVB was working at the UART interface.