How to get data through http from web server?
hi ,
i using arduino uno , wifi shielf. use wifi library , wificlient library build http client.
i trying download data web server. did not sample how use httprequest download file , transmit hex. file text full of hex data. code this. not steady enough. sometime stop before data. 5808 bytes. please give me help. thanks.
i using arduino uno , wifi shielf. use wifi library , wificlient library build http client.
i trying download data web server. did not sample how use httprequest download file , transmit hex. file text full of hex data. code this. not steady enough. sometime stop before data. 5808 bytes. please give me help. thanks.
code: [select]
httprequest();
uint16_t no0xdata_sign=0;
uint8_t body_sign=0;
uint8_t body_finish_sign=0;
uint8_t high=0;
uint8_t low=0;
while(connect_sign==0)
{
while (client.available())
{
uint8_t c = client.read();
if(0xd==c&&client.read()==0xa)
{
c = client.read();
if(c==0xd&&client.read()==0xa)
{
uint8_t body_sign=1;
serial.println("start downloading file");
while(body_sign==1)
{
c=client.read();
if (0x30 == c && 0x78 == client.read())
{
bytes_send+=1;
uint8_t d = client.read();
if (d >= '0' && d <= '9') {
high= d - '0';
} else if (d >= 'a' && d <= 'f') {
high= d - 'a' + 10;
} else if (d >= 'a' && d <= 'f') {
high= d - 'a' + 10;
} else {
high= -1;
}
d = client.read();
if (d >= '0' && d <= '9') {
low= d - '0';
} else if (d >= 'a' && d <= 'f') {
low= d - 'a' + 10;
} else if (d >= 'a' && d <= 'f') {
low= d - 'a' + 10;
} else {
low= -1;
}
serial_rx_data[number_buffer+1]=(high*16) + low;;
serial.print(serial_rx_data[number_buffer+1]);
if(bytes_send==5808)
{
serial.println("finished");
body_sign=0;
body_finish_sign=1;
bytes_send=0;
connect_sign=1;
break;
}
else{
}
}else{
}
}
}
}
}
}
}
this not complete sketch, don't waste our time code snippets.
5908 bytes? know uno has 2kb of ram in total?
"wifi shield" let me expect you're talking arduino wifi shield , not of other wifi shields available. correct?
5908 bytes? know uno has 2kb of ram in total?
"wifi shield" let me expect you're talking arduino wifi shield , not of other wifi shields available. correct?
Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > How to get data through http from web server?
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