/* HocLapTrinhRobot G5-12 ESP32-S3 local dashboard AP for robot AI state. */ #include #include const int LED_STATUS = 2; const int TRIG_PIN = 5; const int ECHO_PIN = 18; const int SOUND_ADC_PIN = 34; const char* AP_SSID = "HLTR-G5-Dashboard"; const char* AP_PASS = "robot1234"; WebServer server(80); float distanceCm = -1; int soundRaw = 0; String aiDecision = "BOOT"; unsigned long lastUpdateMs = 0; float readDistanceCm() { digitalWrite(TRIG_PIN, LOW); delayMicroseconds(2); digitalWrite(TRIG_PIN, HIGH); delayMicroseconds(10); digitalWrite(TRIG_PIN, LOW); unsigned long duration = pulseIn(ECHO_PIN, HIGH, 30000UL); if (duration == 0) return -1; return duration / 58.0; } void updateState() { distanceCm = readDistanceCm(); soundRaw = analogRead(SOUND_ADC_PIN); if (distanceCm > 0 && distanceCm < 20) { aiDecision = "ALERT_OBSTACLE"; } else if (soundRaw > 2800) { aiDecision = "ALERT_SOUND"; } else { aiDecision = "NORMAL"; } digitalWrite(LED_STATUS, aiDecision == "NORMAL" ? LOW : HIGH); Serial.printf("DASH,state,distanceCm=%.1f,soundRaw=%d,decision=%s\n", distanceCm, soundRaw, aiDecision.c_str()); } String htmlPage() { String page = ""; page += "HLTR G5 Dashboard"; page += "

Robot AI Local Dashboard

"; page += "

Distance cm

" + String(distanceCm, 1) + "

"; page += "

Sound raw

" + String(soundRaw) + "

"; page += "

Decision

" + aiDecision + "

"; page += "

Refresh page to update. API: /api/state

"; page += ""; return page; } void handleRoot() { server.send(200, "text/html", htmlPage()); } void handleApiState() { String json = "{"; json += "\"distanceCm\":" + String(distanceCm, 1) + ","; json += "\"soundRaw\":" + String(soundRaw) + ","; json += "\"decision\":\"" + aiDecision + "\""; json += "}"; server.send(200, "application/json", json); } void setup() { Serial.begin(115200); pinMode(LED_STATUS, OUTPUT); pinMode(TRIG_PIN, OUTPUT); pinMode(ECHO_PIN, INPUT); pinMode(SOUND_ADC_PIN, INPUT); WiFi.mode(WIFI_AP); WiFi.softAP(AP_SSID, AP_PASS); server.on("/", handleRoot); server.on("/api/state", handleApiState); server.begin(); Serial.print("G5-12 dashboard ready at http://"); Serial.println(WiFi.softAPIP()); } void loop() { server.handleClient(); if (millis() - lastUpdateMs >= 700) { lastUpdateMs = millis(); updateState(); } }

Local AI và dashboard

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