bool UbirchSIM800::shutdown() {
PRINTLN("!!! SIM800 shutdown");
disableGPRS();
expect_AT_OK(F("+CPOWD=1"));
expect(F("NORMAL POWER DOWN"), 5000);
if (urc_status != 12 && digitalRead(SIM800_PS) == HIGH) {
PRINTLN("!!! SIM800 shutdown using PWRKEY");
pinMode(SIM800_KEY, OUTPUT);
pinMode(SIM800_PS, INPUT);
digitalWrite(SIM800_KEY, LOW);
for (uint8_t s = 30; s > 0 && digitalRead(SIM800_PS) != LOW; --s) delay(1000);
digitalWrite(SIM800_KEY, HIGH);
pinMode(SIM800_KEY, INPUT);
pinMode(SIM800_KEY, INPUT_PULLUP);
}
PRINTLN("!!! SIM800 shutdown ok");
return true;
}
void GM862::requestHTTP() {
char buf[100];
byte i = 0;
initGPRS(); // setup of GPRS context
enableGPRS(); // switch GPRS on
openHTTP("search.twitter.com"); // open a socket
Serial.println("sending request ...");
send("GET /search.atom?q=gm862 HTTP/1.1\r\n"); // search twitter for gm862
send("HOST: search.twitter.com port\r\n"); // write on the socket
send("\r\n");
Serial.println("receiving ...");
while (i++ < 10) { // try to read for 10s
receive(buf); // read from the socket, timeout 1s
if (strlen(buf) > 0) { // we received something
Serial.print("buf:"); Serial.println(buf);
i--; // reset the timeout
}
}
Serial.println("done");
disableGPRS(); // switch GPRS off
}
