#include #include #include #define LED_TYPE SK9822HD #define BRIGHTNESS 25 #define DATA_PIN 33 #define CLK_PIN 32 #define NUM_LEDS 38 #define HALL_PIN 39 #define HALL_THRESHOLD 1.4 #define WIDTH 90 #define HEIGHT 38 #define MAX_FRAMES 7 const char* ssid = "Wifi Name"; const char* password = "Wifi Password"; CRGB leds[NUM_LEDS]; CRGB frames[MAX_FRAMES][WIDTH][HEIGHT]; uint8_t frameCount = 1; uint8_t currentFrame = 0; uint16_t frameDelayMs = 80; int rotationOffset = 0; bool marqueeEnabled = false; int marqueeRate = 20; unsigned long lastMarqueeStep = 0; WebServer server(80); unsigned long lastTriggerTime = 0; unsigned long rotationPeriod = 250; bool hallTriggered = false; const uint8_t numFont[10][7] = { { 0b01110, 0b10001, 0b10011, 0b10101, 0b11001, 0b10001, 0b01110 }, { 0b00100, 0b01100, 0b00100, 0b00100, 0b00100, 0b00100, 0b01110 }, { 0b01110, 0b10001, 0b00001, 0b00010, 0b00100, 0b01000, 0b11111 }, { 0b11111, 0b00010, 0b00100, 0b00010, 0b00001, 0b10001, 0b01110 }, { 0b00010, 0b00110, 0b01010, 0b10010, 0b11111, 0b00010, 0b00010 }, { 0b11111, 0b10000, 0b11110, 0b00001, 0b00001, 0b10001, 0b01110 }, { 0b00110, 0b01000, 0b10000, 0b11110, 0b10001, 0b10001, 0b01110 }, { 0b11111, 0b00001, 0b00010, 0b00100, 0b01000, 0b01000, 0b01000 }, { 0b01110, 0b10001, 0b10001, 0b01110, 0b10001, 0b10001, 0b01110 }, { 0b01110, 0b10001, 0b10001, 0b01111, 0b00001, 0b00010, 0b01100 } }; const char mainPage[] PROGMEM = R"rawliteral(

Delay: Offset: Marquee speed:

)rawliteral"; void drawNum(int xOff, int yOff, int digit) { if (digit < 0 || digit > 9) return; for (int y = 0; y < 7; y++) for (int x = 0; x < 5; x++) if (numFont[digit][y] & (1 << (4 - x))) { int xx = xOff + x, yy = yOff + y; if (xx >= 0 && xx < WIDTH && yy >= 0 && yy < HEIGHT) frames[0][xx][yy] = CRGB(0, 180, 255); } } unsigned long uploadByteCounter = 0; uint8_t uploadFrameIndex = 0; void handleUploadData() { HTTPUpload& up = server.upload(); if (up.status == UPLOAD_FILE_START) { uploadByteCounter = 0; uploadFrameIndex = server.hasArg("frame") ? server.arg("frame").toInt() : 0; if (uploadFrameIndex >= MAX_FRAMES) uploadFrameIndex = 0; } else if (up.status == UPLOAD_FILE_WRITE) { for (int i = 0; i < up.currentSize; i++) { unsigned long bc = uploadByteCounter++; unsigned long pixel = bc / 3; if (pixel >= WIDTH * HEIGHT) continue; int ch = bc % 3; int x = pixel / HEIGHT, y = pixel % HEIGHT; CRGB& px = frames[uploadFrameIndex][x][y]; if (ch == 0) px.r = up.buf[i]; else if (ch == 1) px.g = up.buf[i]; else px.b = up.buf[i]; } } } void handleUploadFinish() { server.send(200, "text/plain", "OK"); } void handleSetMeta() { frameCount = server.arg("frames").toInt(); frameDelayMs = server.arg("delay").toInt(); marqueeEnabled = server.hasArg("marquee") && server.arg("marquee").toInt() == 1; if (server.hasArg("offset")) rotationOffset = server.arg("offset").toInt() % WIDTH; if (server.hasArg("marqueeRate")) marqueeRate = max(1, (int)server.arg("marqueeRate").toInt()); if (frameCount < 1) frameCount = 1; if (frameCount > MAX_FRAMES) frameCount = MAX_FRAMES; if (frameDelayMs < 10) frameDelayMs = 10; server.send(200, "text/plain", "OK"); } /* ===== SETUP ===== */ void setup() { FastLED.addLeds(leds, NUM_LEDS); FastLED.setBrightness(BRIGHTNESS); pinMode(HALL_PIN, INPUT); Serial.begin(115200); WiFi.mode(WIFI_STA); WiFi.begin(ssid, password); Serial.println("Connecting to Wifi..."); unsigned long wifiStart = millis(); int dotPos = 0; int dotDir = 1; unsigned long lastAnim = 0; int timeouts = 0; while (WiFi.status() != WL_CONNECTED && timeouts <= 5) { unsigned long now = millis(); if (now - lastAnim > 40) { lastAnim = now; for (int i = 0; i < NUM_LEDS; i++) leds[i] = CRGB::Black; leds[dotPos] = CRGB(255, 255, 255); FastLED.show(); dotPos += dotDir; if (dotPos >= NUM_LEDS - 1) dotDir = -1; if (dotPos <= 0) dotDir = 1; } if (millis() - wifiStart > 10000) { Serial.println("Wifi timeout, retrying..."); WiFi.disconnect(true); delay(500); WiFi.begin(ssid, password); wifiStart = millis(); timeouts++; } delay(10); } String ip; if (WiFi.status() == WL_CONNECTED) { Serial.println("Wifi connected!"); for (int f = 0; f < MAX_FRAMES; f++) for (int x = 0; x < WIDTH; x++) for (int y = 0; y < HEIGHT; y++) frames[f][x][y] = CRGB::Green; for (int i = 0; i < NUM_LEDS; i++) leds[i] = CRGB::Green; FastLED.show(); delay(5000); ip = WiFi.localIP().toString(); } else { WiFi.disconnect(true); WiFi.mode(WIFI_AP); WiFi.softAP("POV Globe", "12345678"); Serial.println("Fallback to access point mode"); for (int f = 0; f < MAX_FRAMES; f++) for (int x = 0; x < WIDTH; x++) for (int y = 0; y < HEIGHT; y++) frames[f][x][y] = CRGB::Black; for (int i = 0; i < NUM_LEDS; i++) leds[i] = CRGB::Blue; FastLED.show(); delay(5000); ip = WiFi.softAPIP().toString(); } for (int x = 0; x < WIDTH; x++) for (int y = 0; y < HEIGHT; y++) frames[0][x][y] = CRGB::Black; int width = 0; for (unsigned int i = 0; i < ip.length(); i++) { if (ip[i] == '.') width += 2; else width += 6; } int xStart = (WIDTH - width) / 2; int yStart = (HEIGHT - 7) / 2; int x = xStart; for (unsigned int i = 0; i < ip.length(); i++) { char c = ip[i]; if (c == '.') { if (x >= 0 && x < WIDTH && yStart + 6 < HEIGHT) frames[0][x][yStart + 6] = CRGB(0, 180, 255); x += 2; } else if (c >= '0' && c <= '9') { drawNum(x, yStart, c - '0'); x += 6; } if (x > WIDTH - 3) break; } frameCount = 1; currentFrame = 0; server.on("/", HTTP_GET, []() { server.send_P(200, "text/html", mainPage); }); server.on("/upload", HTTP_POST, handleUploadFinish, handleUploadData); server.on("/setMeta", HTTP_GET, handleSetMeta); server.begin(); lastTriggerTime = millis(); } /* ===== LOOP ===== */ void loop() { server.handleClient(); float hallValue = analogRead(HALL_PIN) * (3.3 / 4095.0); if (hallValue < HALL_THRESHOLD && !hallTriggered) { hallTriggered = true; unsigned long now = millis(); rotationPeriod = now - lastTriggerTime; lastTriggerTime = now; } if (hallValue > HALL_THRESHOLD) hallTriggered = false; if (marqueeEnabled) { unsigned long now = millis(); if (now - lastMarqueeStep >= marqueeRate) { lastMarqueeStep = now; rotationOffset++; if (rotationOffset >= WIDTH) rotationOffset = 0; } } static unsigned long lastFrameSwitch = 0; if (millis() - lastFrameSwitch > frameDelayMs) { currentFrame = (currentFrame + 1) % frameCount; lastFrameSwitch = millis(); } unsigned long elapsed = millis() - lastTriggerTime; unsigned long rp = rotationPeriod ? rotationPeriod : 1; int section = (elapsed * WIDTH) / rp; section = (section + rotationOffset) % WIDTH; for (int i = 0; i < NUM_LEDS; i++) leds[i] = frames[currentFrame][section][NUM_LEDS - 1 - i]; FastLED.show(); }