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Hi Gordon,
in this project we are trying transmit GPS data on "NRF"... this is the script which i am using.

var data=command.test();
var arr = [];
data+=command.gps();

eval(data);
eval(Modvar.nrf());
Serial2.setup(9600);
Serial5.setup(9600);
Serial5.on('data', function (data) { print(+data); });
function onInit(){nrf.init([0,0,0,0,2],[0,0,0,0,1]);}
onInit();
setInterval(function() {
  nrf.masterHandler();
//  print(process.memory());
}, 50);

function nrf_print(data){

 // var i =nrf.sendString("\n"+data);
  print("result :"+data);
   
}


//eval(command.gps());

var gps =ConnectGps(Serial2, function(data) {

   if(data.tag == "GGA")
   {
     console.log("\r\n lat:" +data.lat);
     console.log("\r\n lon:" +data.lon);
     console.log("\r\n fix:" +data.fix); 

     // lat
     arr[6] =  parseInt(data.lat[0],10)*10 +  parseInt(data.lat[1],10);
     arr[7] =  parseInt(data.lat[3],10)*10 +  parseInt(data.lat[4],10);
     arr[8] =  parseInt(data.lat[5],10)*10 +  parseInt(data.lat[6],10);

     // lon
     arr[9] =  parseInt(data.lon[0],10)*10 +  parseInt(data.lon[1],10);
     arr[10] =  parseInt(data.lon[3],10)*10 +  parseInt(data.lon[4],10);
     arr[11] =  parseInt(data.lon[5],10)*10 +  parseInt(data.lon[6],10);
   }


 else if(data.tag == "RMC")
  {

    console.log("\r\n time:" +data.time);
    console.log("\r\n date:" +data.date);
    console.log("\r\n speed:" +data.speed);
	console.log("\r\n valid:" +data.valid);
	console.log("\r\n course:" +data.course);

    // time  
    arr[0] =  parseInt(data.time[0],10)*10 +  parseInt(data.time[1],10);
    arr[1] =  parseInt(data.time[3],10)*10 +  parseInt(data.time[4],10);
    arr[2] =  parseInt(data.time[7],10)*10 +  parseInt(data.time[8],10);

    // date
    arr[3] =  parseInt(data.date[0],10)*10 +  parseInt(data.date[1],10);
    arr[4] =  parseInt(data.date[3],10)*10 +  parseInt(data.date[4],10);
    arr[5] =  parseInt(data.date[7],10)*10 +  parseInt(data.date[8],10);

    // valid
    arr[12] = data.valid[0];

    // speed 
    arr[13] = parseInt(data.speed,10);
    nrf_print(arr);
  }
   
});

in this

nrf_print(arr);

if i changed this one to static data like nrf_print("Helloworld"); there is no problem with memory... i think this "arr "array is creating some problem...

Thanks
Vishnu

Thanks for reply...!!

Iam using STM32F103VCT6 espruino board,
with espruino_1v77.
still the result was all zeros.
Thanks for reply....!!!

How much the size of memory available to use in espruino(STM32F103VCT6) board...??

yes it will help full to me.
but,
I tried this but the result was all zeros

yes i can..
but how many times can i do the read and write operations to the AT24 series EEPROM?

ya i knw that but i have to make use of NVRAM.
thanks for your reply...!!

can any body give me the sample code for DS1307??

Thank you very much for the replay.

Hi,
how to read acknowledgement of slave in SPI communication?