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firebase: add wifi commands #11

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Nov 9, 2015
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firebase: add wifi commands #11

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41 changes: 32 additions & 9 deletions firebase/firebase.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -18,36 +18,47 @@
#include <WiFiClientSecure.h>
#include <EEPROM.h>

const char* ssid = "GoogleGuest";
const char* password = "";

const char* host = "burning-heat-7044.firebaseio.com";
const int httpsPort = 443;
const char* fingerprint = "C1 56 CD D8 49 A3 7D D2 1D 49 60 7E 0D 59 A7 7C C1 0E 58 D2";
struct Credential {
char token[148];
char ssid[32];
char password[32];
} cred;

String buffer;

void setup() {
Serial.begin(115200);

EEPROM.begin(512);
EEPROM.begin(4096);
EEPROM.get(0, cred);
Serial.println();
Serial.println("!I #!/dev/chiplet");
Serial.println("!I #!/dev/fail");
Serial.print("!I token: ");
Serial.println(cred.token);
if (strlen(cred.ssid) > 0) {
wifiConnect();
}
}

bool wifiConnect() {
Serial.print("!I connecting to wifi");
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
WiFi.begin(cred.ssid, cred.password);
for (int i = 0; i < 20; i++) {
delay(500);
Serial.print(".");
if (WiFi.status() == WL_CONNECTED) {
Serial.println("");
Serial.print("!I wifi connected: ");
Serial.println(WiFi.localIP());
return true;
}
}
Serial.println("");
Serial.print("!I wifi connected: ");
Serial.println(WiFi.localIP());
Serial.println("!I wifi connection failed");
return false;
}

String buildRequest(String data) {
Expand Down Expand Up @@ -82,12 +93,24 @@ void loop() {
EEPROM.put(0, cred);
EEPROM.commit();
Serial.println(String("!I token updated: ") + cred.token);
} else if (data.startsWith("AT+CWJAP=")) {
String ssidPwd = data.substring(9);
int i = ssidPwd.indexOf(",");
ssidPwd.substring(0, i).toCharArray(cred.ssid, sizeof(cred.token));
ssidPwd.substring(i+1).toCharArray(cred.password, sizeof(cred.password));
Serial.println("!I ssid: " + String(cred.ssid));
Serial.println("!I password: " + String(cred.password));
if (wifiConnect()) {
EEPROM.put(0, cred);
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AT needs a OK response.

EEPROM.commit();
}
} else {
Serial.println("!E usage:");
Serial.println("!E GET /path");
Serial.println("!E POST /path");
Serial.println("!E payload");
Serial.println("!E TOKEN token");
Serial.println("!E AT+CWJAP=ssid,passwd");
}
}

Expand Down