/* * * This Program is designed to operate the The Gecko Tide Clock. It's construction is found on * my Instructables web site. It uses Arduino JSON to download data from: https://www.worldtides.info/apidocs * changes to the program include placing your WiFi credentials as well as the Key from the above website which * requires an account. You will also have to change out the Lat and Lon as well as calculate the amount in seconds * you must add or subtract to obtain the current change from GMT. */ #include "notes.h" //file for your password #include #include #include #include "time.h" #include #include #include #include static const int servoPin = 17; // Where you attached your servo pin // IO pin assignments //hours off UTC this represents Hawaii-- int timeStamp = -10; const int MOTOR_STEP_PIN = 33; const int MOTOR_DIRECTION_PIN = 25; const int EMERGENCY_STOP_PINB = 26; //define the IO PIN the emergency stop switch is connected to downtide limit const int EMERGENCY_STOP_PINT= 32;// this is for the uptide limit of the lead screw // Speed settings const int DISTANCE_TO_TRAVEL_IN_STEPS = 500; const int SPEED_IN_STEPS_PER_SECOND = 2000; const int ACCELERATION_IN_STEPS_PER_SECOND = 2000; const int DECELERATION_IN_STEPS_PER_SECOND = 2000; double epic; double epic2; int que = 0; int counterBabe = 0; const int enablePin = 22; // create the stepper motor object ESP_FlexyStepper stepper; Servo servo1; int crank; TFT_eSPI tft = TFT_eSPI(); time_t now; bool done = 0; struct tm timeinfo; //------- Replace the following! ------ char ssid[] = myWifi; // your network SSID (name) char password[] = myPassword; // your network key // NTP server to request epoch time const char* ntpServer = "pool.ntp.org"; double timerTrue = 60000; // Variable to save current epoch time unsigned long epochTime; long timerNow; float diff = 0.0; unsigned long previousMillis = 0; unsigned long interval = 30000; // Function that gets current epoch time unsigned long getTime() { if (!getLocalTime(&timeinfo)) { //Serial.println("Failed to obtain time"); return(0); } time(&now); return now; } // For Non-HTTPS requests // WiFiClient client; // For HTTPS requests WiFiClientSecure client; float intermed = 0.0; bool hiLow[15]; int epochHiLow[15]; int qr = 0; // Just the base of the URL you want to connect to #define TEST_HOST "www.worldtides.info" // Root cert of server we are connecting to // Baltimore CyberTrust Root - Expires 12 May 2025 // (FYI, from a security point of view you should not trust certs from other people, including me!) const char *server_cert = "-----BEGIN CERTIFICATE-----\n" "MIIDdzCCAl+gAwIBAgIEAgAAuTANBgkqhkiG9w0BAQUFADBaMQswCQYDVQQGEwJJ\n" "RTESMBAGA1UEChMJQmFsdGltb3JlMRMwEQYDVQQLEwpDeWJlclRydXN0MSIwIAYD\n" "VQQDExlCYWx0aW1vcmUgQ3liZXJUcnVzdCBSb290MB4XDTAwMDUxMjE4NDYwMFoX\n" "DTI1MDUxMjIzNTkwMFowWjELMAkGA1UEBhMCSUUxEjAQBgNVBAoTCUJhbHRpbW9y\n" "ZTETMBEGA1UECxMKQ3liZXJUcnVzdDEiMCAGA1UEAxMZQmFsdGltb3JlIEN5YmVy\n" "VHJ1c3QgUm9vdDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAKMEuyKr\n" "mD1X6CZymrV51Cni4eiVgLGw41uOKymaZN+hXe2wCQVt2yguzmKiYv60iNoS6zjr\n" "IZ3AQSsBUnuId9Mcj8e6uYi1agnnc+gRQKfRzMpijS3ljwumUNKoUMMo6vWrJYeK\n" "mpYcqWe4PwzV9/lSEy/CG9VwcPCPwBLKBsua4dnKM3p31vjsufFoREJIE9LAwqSu\n" "XmD+tqYF/LTdB1kC1FkYmGP1pWPgkAx9XbIGevOF6uvUA65ehD5f/xXtabz5OTZy\n" "dc93Uk3zyZAsuT3lySNTPx8kmCFcB5kpvcY67Oduhjprl3RjM71oGDHweI12v/ye\n" "jl0qhqdNkNwnGjkCAwEAAaNFMEMwHQYDVR0OBBYEFOWdWTCCR1jMrPoIVDaGezq1\n" "BE3wMBIGA1UdEwEB/wQIMAYBAf8CAQMwDgYDVR0PAQH/BAQDAgEGMA0GCSqGSIb3\n" "DQEBBQUAA4IBAQCFDF2O5G9RaEIFoN27TyclhAO992T9Ldcw46QQF+vaKSm2eT92\n" "9hkTI7gQCvlYpNRhcL0EYWoSihfVCr3FvDB81ukMJY2GQE/szKN+OMY3EU/t3Wgx\n" "jkzSswF07r51XgdIGn9w/xZchMB5hbgF/X++ZRGjD8ACtPhSNzkE1akxehi/oCr0\n" "Epn3o0WC4zxe9Z2etciefC7IpJ5OCBRLbf1wbWsaY71k5h+3zvDyny67G7fyUIhz\n" "ksLi4xaNmjICq44Y3ekQEe5+NauQrz4wlHrQMz2nZQ/1/I6eYs9HRCwBXbsdtTLS\n" "R9I4LtD+gdwyah617jzV/OeBHRnDJELqYzmp\n" "-----END CERTIFICATE-----\n"; void setup() { Serial.begin(115200); pinMode(EMERGENCY_STOP_PINB, INPUT_PULLUP); pinMode(EMERGENCY_STOP_PINT, INPUT_PULLUP); servo1.attach(servoPin); // put your setup code here, to run once: stepper.connectToPins(MOTOR_STEP_PIN, MOTOR_DIRECTION_PIN); stepper.setSpeedInStepsPerSecond(SPEED_IN_STEPS_PER_SECOND); stepper.setAccelerationInStepsPerSecondPerSecond(ACCELERATION_IN_STEPS_PER_SECOND); stepper.setDecelerationInStepsPerSecondPerSecond(DECELERATION_IN_STEPS_PER_SECOND); stepper.startAsService(); servo1.attach(servoPin); timerNow = millis(); pinMode(enablePin,OUTPUT); digitalWrite(enablePin, HIGH); tft.init(); tft.setRotation(1); tft.setTextSize(2); tft.fillScreen(TFT_BLACK); tft.setTextColor(TFT_RED, TFT_BLACK); // Connect to the WiFI WiFi.mode(WIFI_STA); WiFi.begin(ssid, password); Serial.println(""); // Wait for connection while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println(""); Serial.print("Connected to "); Serial.println(ssid); Serial.print("IP address: "); Serial.println(WiFi.localIP()); tft.println("CONNECTED"); //-------- epochTime = 0; qr = 0; for(int z = 0; z < 15; z++){ epochHiLow[z] = 0; hiLow[z] = 0; } // Checking the cert is the best way on an ESP32 // This will verify the server is trusted. client.setCACert(server_cert); configTime(0, 0, ntpServer); // If you don't want to verify the server // Unlike the fingerprint method of the ESP8266 which expires frequently // the cert lasts years, so I don't see much reason to ever // use this on the ESP32 client.setInsecure(); tft.setTextSize(1); makeHTTPRequest(); epochTime = getTime(); epochTime = epochTime + (3600 * timeStamp); Serial.print("earlytime:"); Serial.println(epochTime); done = 1; } // this is where you request information from worldtides site void makeHTTPRequest() { //tft.fillScreen(TFT_BLACK); qr = 0; for(int z = 0; z < 15; z++){ epochHiLow[z] = 0; hiLow[z] = 0; } // Opening connection to server (Use 80 as port if HTTP) if (!client.connect(TEST_HOST, 443)) { Serial.println(F("Connection failed")); return; } // give the esp a breather yield(); // Send HTTP request client.print(F("GET ")); // This is the second half of a request (everything that comes after the base URL) client.print("/api/v3?today&extremes&lat=20.783&lon=-156.467&localtime&datum=CD&key=PlaceApikeyhere"); // %2C == , client.println(F(" HTTP/1.1")); //Headers client.print(F("Host: ")); client.println(TEST_HOST); client.println(F("Cache-Control: no-cache")); if (client.println() == 0) { Serial.println(F("Failed to send request")); return; } //delay(100); // Check HTTP status char status[32] = {0}; client.readBytesUntil('\r', status, sizeof(status)); if (strcmp(status, "HTTP/1.1 200 OK") != 0) { Serial.print(F("Unexpected response: ")); Serial.println(status); return; } // Skip HTTP headers char endOfHeaders[] = "\r\n\r\n"; if (!client.find(endOfHeaders)) { Serial.println(F("Invalid response")); return; } // This is probably not needed for most, but I had issues // with the Tindie api where sometimes there were random // characters coming back before the body of the response. // This will cause no hard to leave it in // peek() will look at the character, but not take it off the queue while (client.available() && client.peek() != '{') { char c = 0; client.readBytes(&c, 1); Serial.print(c); Serial.println("BAD"); } //StaticJsonDocument<2048> doc; DynamicJsonDocument doc(12288); DeserializationError error = deserializeJson(doc, client); if (error) { Serial.print("deserializeJson() failed: "); Serial.println(error.c_str()); return; } int Status = doc["status"]; // 200 int callCount = doc["callCount"]; // 1 const char* copyright = doc["copyright"]; // "Tidal data retrieved from www.worldtides.info. Copyright ... float requestLat = doc["requestLat"]; // 20.617 double requestLon = doc["requestLon"]; // -105.230187 float responseLat = doc["responseLat"]; // 20.6167 float responseLon = doc["responseLon"]; // -105.25 const char* atlas = doc["atlas"]; // "UHSLC" const char* station = doc["station"]; // "Puerto Vallarta" const char* timezone = doc["timezone"]; // "America/Mexico_City" const char* requestDatum = doc["requestDatum"]; // "CD" const char* responseDatum = doc["responseDatum"]; // "CD" for (JsonObject extreme : doc["extremes"].as()) { long extreme_dt = extreme["dt"]; // 1672369386, 1672394864, 1672420872, 1672441211, 1672460268, ... const char* extreme_date = extreme["date"]; // "2022-12-29T21:03:06-06:00", "2022-12-30T04:07:44-06:00", ... float extreme_height = extreme["height"]; // 0.236, 0.737, 0.288, 0.525, 0.331, 0.792, 0.147 const char* extreme_type = extreme["type"]; // "Low", "High", "Low", "High", "Low", "High", "Low" Serial.print(extreme_date); tft.setTextColor(TFT_GREEN, TFT_BLACK); tft.print(extreme_date); tft.setTextColor(TFT_RED, TFT_BLACK); tft.println(extreme_type); Serial.println(extreme_type); std::string bongo = extreme_type; int inter = (extreme_date[11] - '0') * 10 + (extreme_date[12] - '0'); //Serial.print("here: "); //Serial.println(inter); epochHiLow[qr] = extreme_dt + (3600 * timeStamp); if(bongo == "High"){ hiLow[qr] = 1; }else hiLow[qr] = 0; //hiLow[q] = extreme_height; qr++; //Serial.print(extreme_height); //Serial.print(height_date); } //Serial.println(qr); for(int i = 0; i <= qr; i++){ Serial.print(hiLow[i]); Serial.print(" "); Serial.print(epochHiLow[i]); Serial.println(); } } void loop() { tft.drawNumber(que, 180, 30, 7); //check epic time every 60 minutes if(done == 1 && epochHiLow[0] != 0) { for(int zone = 0; zone <= qr; zone++){ if( epochHiLow[zone + 1] == 0){ restarter(); } que = zone; if(epochHiLow[zone] > epochTime){ if(hiLow[zone] == 1){ crank = -1; digitalWrite(enablePin, LOW); if( stepper.moveToHomeInMillimeters(1,2500.0, 6000,26)){ for(int posDegrees = 0; posDegrees <= 180; posDegrees++) { servo1.write(posDegrees); //Serial.println(posDegrees); delay(100); } //servo1.write(180); delay(1000); //servo1.detach(); moving(crank); } } else { crank = 1; digitalWrite(enablePin, LOW); if( stepper.moveToHomeInMillimeters(-1,2500.0, 6000,32)){ for(int posDegrees = 180; posDegrees >= 0; posDegrees--) { servo1.write(posDegrees); delay(100); } //servo1.write(0); delay(1000); moving(crank); } } done = 0; zone = qr; } } } //This checks the Time server every minute for correct time if( millis() - timerNow >= timerTrue) { //tft.fillScreen(TFT_BLACK); //makeHTTPRequest(); epochTime = getTime(); epochTime = epochTime + (3600 * timeStamp); tft.drawNumber(epochTime, 0, 100, 2); Serial.print("Epoch Time: "); Serial.println(epochTime); showTime(timeinfo); timerNow = millis(); if(epochTime > epochHiLow[que]){ done = 1; } moving(crank); delay(1000); } } void showTime(tm localTime) { Serial.print(localTime.tm_mday); Serial.print('/'); Serial.print(localTime.tm_mon + 1); Serial.print('/'); Serial.print(localTime.tm_year - 100); Serial.print('-'); Serial.print(localTime.tm_hour); Serial.print(':'); Serial.print(localTime.tm_min); Serial.print(':'); Serial.print(localTime.tm_sec); Serial.print(" Day of Week "); if (localTime.tm_wday == 0) Serial.println(7); else Serial.println(localTime.tm_wday); } void moving( int drug){ if(que !=0){ epic = ( epochTime - epochHiLow[que - 1] ); epic2 = (epochHiLow[que] - epochHiLow[que - 1]); diff = 100.0 * float(( epic / epic2)); } else diff = 100.0 * float((epochHiLow[que] - epochTime)/ 21600); diff = constrain(diff, 1,100); Serial.print( "Percentage of time before next: "); Serial.println(diff); Serial.print("epochTimeofTide"); Serial.println(epochHiLow[que]); tft.drawString(" ",100, 100, 4); tft.drawNumber(diff, 100, 100, 4); //tft.drawNumber(diff, 100, 100, 4); if(hiLow[que] == 0) { tft.drawString("% to low ", 130, 100, 4); } else tft.drawString("% to High", 130, 100, 4); int mover = map(diff, 1,100, 1, 4800); digitalWrite(enablePin, LOW); stepper.moveToPositionInMillimeters( drug * mover); digitalWrite(enablePin, HIGH); } void restarter(){ Serial.println("Restarting in 10 seconds"); delay(10000); ESP.restart(); }