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#include <ESPert.h>
ESPert espert;
const char *host = "api.fixer.io";
const char *mqhost = "www.espert.io";
const char *ssid = "xxxxx"; //change to your own SSID
const char *password = "xxxxxx"; //change to your own password
String smartphone_key = "xxxxxx"; //change to your own smartphone key. Check out www.espert.io
const int httpPort = 80;
const char *path = "/latest?base=SGD";
const int sleepTimeS = 43200; //sleep for 12 hours
void setup() {
espert.init();
espert.oled.init();
delay(2000);
espert.oled.clear();
espert.oled.println(espert.info.getId());
espert.oled.println();
int mode = espert.wifi.init();
WiFi.begin (ssid, password);
if (mode == ESPERT_WIFI_MODE_CONNECT) {
espert.println(">>> WiFi mode: connected.");
espert.oled.println("WiFi: connected.");
espert.oled.print("IP..: ");
espert.oled.println(espert.wifi.getLocalIP());
} else if (mode == ESPERT_WIFI_MODE_DISCONNECT) {
espert.println(">>> WiFi mode: disconnected.");
espert.oled.println("WiFi: not connected.");
} else if (mode == ESPERT_WIFI_MODE_SMARTCONFIG) {
espert.println(">>> WiFi mode: smart config.");
} else if (mode == ESPERT_WIFI_MODE_SETTINGAP) {
espert.println(">>> WiFi mode: access point.");
}
delay(2000);
}
void loop() {
String exchange = espert.wifi.getHTTP(host, path); //get exchange rates from api.fixer.io
if (espert.json.init(exchange)) {
if (espert.json.containsKey("base")) {
espert.oled.clear();
espert.oled.println("CURRENCY EXCHANGE");
espert.oled.print("Base currency:");
espert.oled.println(espert.json.get("base"));
espert.oled.print("Date:");
espert.oled.println(espert.json.get("date"));
}
}
String jsonExchange;
int jsonIndex;
for (int i = 0; i < exchange.length(); i++) {
if (exchange[i] == '{') {
jsonIndex = i;
break;
}
}
jsonExchange = exchange.substring(jsonIndex);
jsonExchange.trim();
int rateIndexUS = jsonExchange.indexOf("USD");
int rateIndexINR = jsonExchange.indexOf("INR");
int rateIndexMYR = jsonExchange.indexOf("MYR");
int rateIndexTHB = jsonExchange.indexOf("THB");
String priceStringUS = jsonExchange.substring(rateIndexUS + 5, rateIndexUS +11);
String priceStringMYR = jsonExchange.substring(rateIndexMYR + 5, rateIndexMYR +10);
String priceStringINR = jsonExchange.substring(rateIndexINR + 5, rateIndexINR +10);
String priceStringTHB= jsonExchange.substring(rateIndexTHB + 5, rateIndexTHB +10);
priceStringUS.trim();
priceStringMYR.trim();
priceStringINR.trim();
priceStringTHB.trim();
float priceUS = priceStringUS.toFloat();
float priceINR = priceStringINR.toFloat();
float priceMYR = priceStringMYR.toFloat();
float priceTHB = priceStringTHB.toFloat();
espert.oled.print("USD:");
espert.oled.println(priceUS);
espert.oled.print("INR:");
espert.oled.println(priceINR);
espert.oled.print("MYR:");
espert.oled.println(priceMYR);
espert.oled.print("THB:");
espert.oled.println(priceTHB);
delay(10000);
String message = "Currency Exchange Rate: SGD/USD: " + (String)(priceUS) + " "+ "SGD/INR: " + (String)(priceINR) + " " + "SGD/MYR: " + (String)(priceMYR) + " " +"SGD/THB:" + (String)(priceTHB);
message.replace(String(" "), String("%20"));
String path = "/MySmartphone/send?key=" + smartphone_key + "&message=" + message;
espert.println(">>" + espert.wifi.getHTTP(mqhost, path.c_str()) + "<<");
delay(30000);
espert.oled.clear();
ESP.deepSleep(sleepTimeS * 1000000);
}
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