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Configure Finnhub for Bitcoin/stocks, keep Yahoo for commodities/indices

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This commit is contained in:
Chad 2026-03-29 21:00:41 -05:00
parent fcde8cf66b
commit 16edb47b1d
1 changed files with 89 additions and 17 deletions
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86
src/main.cpp
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@ -30,6 +30,8 @@
#define MAX_INDICES 5
#define MAX_TICKER_LEN 8
#define FINNHUB_API_KEY "d74t3bpr01qg1eo6pln0d74t3bpr01qg1eo6plng"
class LGFX : public lgfx::LGFX_Device {
public:
lgfx::Bus_RGB _bus_instance;
@ -194,7 +196,7 @@ String formatPriceUS(double price, int decimals = 2, bool includeDollar = true)
return includeDollar ? "$" + result : result;
}
bool fetchPrice(const char* symbol, double* result) {
bool fetchPriceYahoo(const char* symbol, double* result) {
WiFiClientSecure client;
client.setInsecure();
@ -229,6 +231,39 @@ bool fetchPrice(const char* symbol, double* result) {
return true;
}
bool fetchPriceFinnhub(const char* symbol, double* result) {
WiFiClientSecure client;
client.setInsecure();
HTTPClient http;
String url = "https://finnhub.io/api/v1/quote?symbol=" + String(symbol) + "&token=" + String(FINNHUB_API_KEY);
if (!http.begin(client, url)) return false;
http.setTimeout(15000);
int httpCode = http.GET();
if (httpCode != HTTP_CODE_OK) {
http.end();
return false;
}
String payload = http.getString();
http.end();
int idx = payload.indexOf("\"c\":");
if (idx == -1) return false;
int start = idx + 4;
int end = payload.indexOf(",", start);
if (end == -1) end = payload.indexOf("}", start);
if (end <= start) return false;
String priceStr = payload.substring(start, end);
*result = priceStr.toDouble();
return true;
}
void loadConfig() {
preferences.begin("dashboard", true);
@ -274,19 +309,20 @@ void saveConfig() {
void updatePrices() {
if (WiFi.status() != WL_CONNECTED) return;
fetchPrice("BTC-USD", &btcPrice);
fetchPrice("GC=F", &goldPrice);
fetchPrice("SI=F", &silverPrice);
fetchPriceFinnhub("BINANCE:BTCUSDT", &btcPrice);
fetchPriceYahoo("GC=F", &goldPrice);
fetchPriceYahoo("SI=F", &silverPrice);
for (int i = 0; i < MAX_STOCKS; i++) {
if (strlen(stockTickers[i]) > 0) {
fetchPrice(stockTickers[i], &stockPrices[i]);
fetchPriceFinnhub(stockTickers[i], &stockPrices[i]);
}
}
for (int i = 0; i < MAX_INDICES; i++) {
if (indexSelected[i] && strlen(indexTickers[i]) > 0) {
fetchPrice(indexTickers[i], &indexPrices[i]);
fetchPriceYahoo(indexTickers[i], &indexPrices[i]);
}
}
}
@ -498,8 +534,16 @@ void drawDashboard() {
String wifiStatus = WiFi.status() == WL_CONNECTED ? "OK" : "OFFLINE";
lcd.drawString("WiFi: " + wifiStatus, 20, SCREEN_HEIGHT - 20);
lcd.fillSmoothRoundRect(SCREEN_WIDTH - 160, SCREEN_HEIGHT - 36, 140, 32, 6, TFT_DARKGRAY);
int secondsLeft = (REFRESH_INTERVAL - (millis() - lastRefresh)) / 1000;
if (secondsLeft < 0) secondsLeft = 0;
int mins = secondsLeft / 60;
int secs = secondsLeft % 60;
char timeStr[8];
sprintf(timeStr, "%d:%02d", mins, secs);
lcd.setTextDatum(textdatum_t::middle_center);
lcd.drawString(String(timeStr), SCREEN_WIDTH / 2, SCREEN_HEIGHT - 20);
lcd.fillSmoothRoundRect(SCREEN_WIDTH - 160, SCREEN_HEIGHT - 36, 140, 32, 6, TFT_DARKGRAY);
lcd.drawString("CUSTOMIZE", SCREEN_WIDTH - 90, SCREEN_HEIGHT - 20);
}
@ -683,8 +727,15 @@ void showRefreshingMessage() {
lcd.fillSmoothRoundRect(0, SCREEN_HEIGHT - 40, SCREEN_WIDTH, 40, 8, TFT_ORANGE);
lcd.setTextColor(TFT_WHITE, TFT_ORANGE);
lcd.setFont(&fonts::DejaVu18);
lcd.setTextDatum(textdatum_t::middle_left);
String wifiStatus = WiFi.status() == WL_CONNECTED ? "OK" : "OFFLINE";
lcd.drawString("WiFi: " + wifiStatus, 20, SCREEN_HEIGHT - 20);
lcd.setTextDatum(textdatum_t::middle_center);
lcd.drawString("REFRESHING...", SCREEN_WIDTH / 2, SCREEN_HEIGHT - 20);
lcd.fillSmoothRoundRect(SCREEN_WIDTH - 160, SCREEN_HEIGHT - 36, 140, 32, 6, TFT_DARKGRAY);
lcd.drawString("CUSTOMIZE", SCREEN_WIDTH - 90, SCREEN_HEIGHT - 20);
}
void refreshDataAndShow() {
@ -769,6 +820,20 @@ void setup() {
drawDashboard();
}
void drawFooterCountdown() {
int secondsLeft = (REFRESH_INTERVAL - (millis() - lastRefresh)) / 1000;
if (secondsLeft < 0) secondsLeft = 0;
int mins = secondsLeft / 60;
int secs = secondsLeft % 60;
char timeStr[8];
sprintf(timeStr, "%d:%02d", mins, secs);
lcd.setFont(&fonts::DejaVu18);
lcd.setTextColor(TFT_WHITE, TFT_ORANGE);
lcd.setTextDatum(textdatum_t::middle_center);
lcd.drawString(String(timeStr), SCREEN_WIDTH / 2, SCREEN_HEIGHT - 20);
}
void loop() {
int32_t x, y;
@ -810,7 +875,14 @@ void loop() {
delay(300);
}
static unsigned long lastCountdownUpdate = 0;
if (currentScreen == SCREEN_DASHBOARD && millis() - lastCountdownUpdate >= 1000) {
lastCountdownUpdate = millis();
drawFooterCountdown();
}
if (currentScreen == SCREEN_DASHBOARD && millis() - lastRefresh > REFRESH_INTERVAL) {
showRefreshingMessage();
updatePrices();
lastRefresh = millis();
drawDashboard();