ESP Web Server

#include #include "Adafruit_VL53L0X.h" Adafruit_VL53L0X lox = Adafruit_VL53L0X(); static const int servoPin = 13; Servo servo1; const int SDL = 22; const int SDA2 = 21; // useless in the code const int minHeight = 50; const int maxHeight = 445; int minServo = 0; int maxServo = 180; int lastAngle = -1; float curHeight = 50; float targetHeight = 250; int equilibrium = 0; int error = 0; #include #include #include // Replace with your network credentials const char* ssid = "ESP_ping"; const char* password = "pong"; const char* PARAM_INPUT_1 = "output"; const char* PARAM_INPUT_2 = "state"; // Create AsyncWebServer object on port 80 AsyncWebServer server(80); const char index_html[] PROGMEM = R"rawliteral( ESP Web Server

ESP Web Server

%BUTTONPLACEHOLDER% )rawliteral"; // Replaces placeholder with button section in your web page String processor(const String& var){ //Serial.println(var); if(var == "BUTTONPLACEHOLDER"){ String buttons = ""; buttons += "

"; buttons += "

"; return buttons; } return String(); } auto mesureHeight(){ VL53L0X_RangingMeasurementData_t measure; lox.rangingTest(&measure, false); // pass in 'true' to get debug data printout! if (measure.RangeStatus != 4) { // phase failures have incorrect data float height = measure.RangeMilliMeter; if (height < 1000){ curHeight = height; return height; } else { Serial.println("Incoherent measurement. Returning previous one."); return curHeight; } } else { Serial.println(" out of range "); return curHeight; } } int requestedValue = 250; void wifisetup() { Serial.print("Setting AP (Access Point)…"); WiFi.softAP(ssid); IPAddress IP = WiFi.softAPIP(); Serial.print("AP IP address: "); Serial.println(IP); // Route for root / web page server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){ request->send_P(200, "text/html", index_html, processor); }); // Send a GET request to /update?output=&state= server.on("/update", HTTP_GET, [] (AsyncWebServerRequest *request) { String inputMessage1; String inputMessage2; // GET input1 value on /update?output=&state= if (request->hasParam(PARAM_INPUT_1) && request->hasParam(PARAM_INPUT_2)) { inputMessage1 = request->getParam(PARAM_INPUT_1)->value(); inputMessage2 = request->getParam(PARAM_INPUT_2)->value(); requestedValue = inputMessage2.toInt(); } else { inputMessage1 = "No message sent"; inputMessage2 = "No message sent"; } Serial.print("GPIO: "); Serial.print(inputMessage1); Serial.print(" - Set to: "); Serial.println(inputMessage2); request->send(200, "text/plain", "OK"); }); // Start server server.begin(); } void setup() { Serial.begin(115200); // Starts the serial communication while (! Serial) { delay(1); } wifisetup(); servo1.attach(servoPin); Serial.println("Adafruit VL53L0X test"); if (!lox.begin()) { Serial.println(F("Failed to boot VL53L0X")); while(1); } Serial.println(F("VL53L0X API Simple Ranging example\n\n")); Serial.println("Setuping"); servo1.write(minServo); delay(5000); float h = mesureHeight(); if (h < maxHeight) { Serial.println("CHANGE FAN SPEED"); while (1); } Serial.println("Setuping for downwards"); int angle = minServo; while (h > maxHeight) { ++angle; servo1.write(angle); delay(100); h = mesureHeight(); } angle -= 2; servo1.write(angle); equilibrium = angle; Serial.println("Done setuping have funning"); } auto heightRatio(float height){ return max(min(1.0f, (height - minHeight) / (maxHeight-minHeight)), 0.0f); } int servoPosition(float ratio){ return (ratio * maxServo) + ((1-ratio) * minServo); } void loop() { float h = mesureHeight(); Serial.print("Measure = "); Serial.println(h); int angle = 0; if (abs(h - requestedValue) > 5.0f) { Serial.println("HEYEYEYEYEYEYEY"); angle = equilibrium + ((h - requestedValue) * 1 / (7)); } else if (abs(h - requestedValue) > 2.0f) { angle = equilibrium + ((h - requestedValue) * 1 / (7)); } else { error = 0; angle = equilibrium; } error += requestedValue - h; Serial.print("angle = "); Serial.print(angle); Serial.print("; equilibrium = "); Serial.println(equilibrium); servo1.write(min(max(angle, minServo), maxServo)); delay(1); }