No voltage on Antenna with arduino even when transmitting

Question

Hello, I am trying to make the Wizfi210 send data but I am not able to get any voltage on the antenna.Here is my code: /* WizFi210 Arduino test code Circuit: WizFi210 connected to Arduino via SPI RST: pin 2 // Output DRDY: pin 3 // Input CSB: pin 4 // output MOSI: pin 11 // output MISO: pin 12 SCK: pin 13 // out Created 15 May 2012 by Jinbuhm Kim (jbkim@wiznet, Jinbuhm.Kim@gmail.com) */ // WizFi210 communicates using SPI, so include the SPI library: #include #include #include #include #define DHCP_ENABLE 1 const byte SPI_ESC_CHAR = 0xFB; /* Start transmission indication */ const byte SPI_IDLE_CHAR = 0xF5; /* synchronous IDLE */ const byte SPI_XOFF_CHAR = 0xFA; /* Stop transmission indication */ const byte SPI_XON_CHAR = 0xFD; /* Start transmission indication */ const byte SPI_INVALID_CHAR_ALL_ONE = 0xFF; /* Invalid character possibly recieved during reboot */ const byte SPI_INVALID_CHAR_ALL_ZERO = 0x00; /* Invalid character possibly recieved during reboot */ const byte SPI_LINK_READY = 0xF3; /* SPI link ready */ #define SSID "Tenda_47F130" // SSID of your AP #define WPA_PASS "12345678" // WPA Password #define Infrastructure 1//0 #define Ad_hoc 0//1 #define Client_Mode 1 #define Server_Mode 0 #define Protocol_UDP 1//0 #define Protocol_TCP 0//1 // for static IP address unsigned char IP[4] = {192, 168, 88, 123}; unsigned char Sub[4] = {255, 255, 255, 0}; unsigned char Gw[4] = {192, 168, 88, 1}; unsigned char SIP[4] = {192, 168, 88, 228}; unsigned int ListenPort = 5000; unsigned int ServerPort = 5000; // pins used for the connection with the WizFi210 //const int rstPin = 2; const int dataReadyPin = 3; const int chipSelectPin = 4; boolean Wifi_setup = false; int cnt=0; void setup() { Serial.begin(115200); Serial.println(" Serial Init"); // initalize the data ready and chip select pins: pinMode(dataReadyPin, INPUT); pinMode(chipSelectPin, OUTPUT); //pinMode(rstPin, OUTPUT); // start the SPI library: SPI.setDataMode(SPI_MODE0); SPI.setBitOrder(MSBFIRST); SPI.setClockDivider(SPI_CLOCK_DIV64); // SPI.begin(); digitalWrite(chipSelectPin, HIGH); //digitalWrite(rstPin, HIGH); Serial.println("Wi-Fi Reset"); //digitalWrite(rstPin, LOW); delay(500); //digitalWrite(rstPin, HIGH); delay(6000); // Serial.println("Wi-Fi Init"); Init(); Serial.println("Wi-Fi Init Complete"); } void loop() { byte tmp; if (Wifi_setup == true) //if(1) { // if there is data from Wi-Fi side. tmp = WizFI210_Read_Byte(); if ((tmp != SPI_IDLE_CHAR) && (tmp != SPI_INVALID_CHAR_ALL_ZERO) && (tmp != SPI_INVALID_CHAR_ALL_ONE)){ Serial.print(char(tmp)); } // if the connection is established, incoming serial data sent to the peer. /*if (Serial.available() > 0) { WizFI210_Write_Byte(Serial.read()); }*/ WizFI210_Write_Byte('R'); //Serial.print(cnt); //cnt++; //Serial.println(" Sent"); //delay(500); } } byte WizFI210_Read_Byte() { byte result; digitalWrite(chipSelectPin, LOW); result = SPI.transfer(0); digitalWrite(chipSelectPin, HIGH); return(result); }…

infibit · Answer

I am now measuring the antenna signal strength using an RF meter and all I see are short bursts of signal coming out of it.To make it more consistent should I set it to 1 Mbps and I am also thinking of using an Arduino Due which runs at 84Mhz. Right now the arduino pro mini I am using works only at 8 mhz and the SPI frequency is at 125 khz.I need to push data a 1mbps. Any suggestions would be helpful.I think I might have to use serial port for sending data on it at say 1 mbps.