redume/ESP32-Currency
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chore: The data is now updated every two hours

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This commit is contained in:
Danil 2025-06-18 18:22:17 +03:00
parent 8be79fa368
commit bec48059ac
1 changed files with 55 additions and 38 deletions
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93
src/main.cpp
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@ -21,6 +21,9 @@ unsigned long previousMillis = 0;
const long interval = 500;
int dotCount = 0;
const unsigned long updateInterval = 7200000; // 2h
unsigned long lastUpdate = 0;
void drawGraph(const float *val, int len,
uint16_t x0, uint16_t y0,
uint16_t w, uint16_t h,
@ -53,9 +56,9 @@ void drawGraph(const float *val, int len,
tft.setTextSize(1);
char buf[16];
snprintf(buf, sizeof(buf), "%.1f", vMax);
int16_t x1, y1;
int16_t bx, by;
uint16_t bw, bh;
tft.getTextBounds(buf, 0, 0, &x1, &y1, &bw, &bh);
tft.getTextBounds(buf, 0, 0, &bx, &by, &bw, &bh);
tft.setCursor(x0 + w - bw - 1, y0 - bh - 1);
tft.print(buf);
@ -64,58 +67,32 @@ void drawGraph(const float *val, int len,
tft.print(buf);
}
void setup() {
Serial.begin(115200);
tft.initR(INITR_BLACKTAB);
tft.setRotation(1);
tft.setSPISpeed(40000000);
tft.fillScreen(ST77XX_BLACK);
tft.setTextColor(ST77XX_WHITE);
tft.setTextSize(1);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval) {
previousMillis = currentMillis;
tft.fillScreen(ST77XX_BLACK);
tft.setCursor(0, 10);
tft.print("Connecting");
for (int i = 0; i < dotCount; ++i) tft.print('.');
dotCount = (dotCount + 1) % 4;
}
}
tft.fillScreen(ST77XX_BLACK);
tft.setCursor(0, 10);
tft.print("Connected: ");
tft.print(WiFi.localIP());
void updateData() {
configTime(0, 0, "pool.ntp.org", "time.nist.gov");
struct tm ti;
while (!getLocalTime(&ti));
if (!getLocalTime(&ti)) return;
char endDate[11], startDate[11];
strftime(endDate, sizeof(endDate), "%Y-%m-%d", &ti);
ti.tm_mon--;
mktime(&ti);
strftime(startDate, sizeof(startDate), "%Y-%m-%d", &ti);
tft.fillScreen(ST77XX_BLACK);
tft.setCursor(0, 10);
WiFiClientSecure client;
client.setInsecure();
HTTPClient http;
String url = String(kekkai) + "/api/getRate/?from_currency=USD&conv_currency=RUB&date=" + endDate;
http.begin(client, url.c_str());
int code = http.GET();
if (code == HTTP_CODE_OK) {
if (http.GET() == HTTP_CODE_OK) {
DynamicJsonDocument d(1024);
String p = http.getString();
deserializeJson(d, p);
float rate = d["rate"].as<float>();
tft.fillScreen(ST77XX_BLACK);
tft.setCursor(0, 10);
tft.printf("1 USD = %.4f RUB", rate);
}
http.end();
@ -124,8 +101,7 @@ void setup() {
+ "/api/getRate/?from_currency=USD&conv_currency=RUB&start_date=" + startDate
+ "&end_date=" + endDate;
http.begin(client, url.c_str());
code = http.GET();
if (code == HTTP_CODE_OK) {
if (http.GET() == HTTP_CODE_OK) {
DynamicJsonDocument d(32768);
String p = http.getString();
deserializeJson(d, p);
@ -141,4 +117,45 @@ void setup() {
http.end();
}
void loop() {}
void setup() {
Serial.begin(115200);
tft.initR(INITR_BLACKTAB);
tft.setRotation(1);
tft.setSPISpeed(40000000);
tft.fillScreen(ST77XX_BLACK);
tft.setTextColor(ST77XX_WHITE);
tft.setTextSize(1);
WiFi.begin(ssid, password);
previousMillis = millis();
dotCount = 0;
while (WiFi.status() != WL_CONNECTED) {
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval) {
previousMillis = currentMillis;
tft.fillScreen(ST77XX_BLACK);
tft.setCursor(10, 10);
tft.print("Connecting");
for (int i = 0; i < dotCount; i++) {
tft.print(".");
}
dotCount++;
if (dotCount > 3) {
dotCount = 0;
}
}
}
tft.fillScreen(ST77XX_BLACK);
updateData();
lastUpdate = millis();
}
void loop() {
if (millis() - lastUpdate >= updateInterval) {
updateData();
lastUpdate = millis();
}
}