johndevine / solartrackerlite

Contains no OTA or MQTT but has basic WiFi capability to set SSID and password.

Notes

This runs on an ESP32 and:

1. Look for a wifi network and connect to it. (NOTE .. The first time it starts up it will go straight to the webserver) a. If it cannot find the one coded in then open a web server and allow the user to input the SSID and Password then to keep that entry and use that for subsequent boots. b. NOTE the credentials are held in NVR and the only way to totally remove them is to manually clear the NVR on the ESP i: Start CLI ... To get to CLI in LHS menu select PIO (Ant Icon) then in "QUICK ACCESS MENU" select under Miscellaneous PlatformIO Core CLI ii: pio run --target erase iii: (may take more than one attempt)

2. Allow for OTA (Over The Air) updates by having a webserver on url: Once captive portal mode is up drop out of it. (The captive portal mode update may not work) Go to web browser and go to 192.168.4.1 and select Update that will load a .bin up to the ESP32 and reboot.

3. Connect to an MQTT server so messages can be published and also recieved.For the MQTT connection: a: The maximum message size, including header, is 256 bytes by default. This is configurable via MQTT_MAX_PACKET_SIZE in PubSubClient.h or can be changed by calling PubSubClient::setBufferSize(size). b:The keepalive interval is set to 15 seconds by default. This is configurable via MQTT_KEEPALIVE in PubSubClient.h or can be changed by calling PubSubClient::setKeepAlive(keepAlive). Set These entries to match your requirements const char *mqtt_server = "192.168.1.3"; char fullTopic[200] = "test/temperature";

4. Send messages via: PubSubClient client(espClient); // MQTT client for PubSubClient library client.publish(fullTopic, jsonOutput);

5. Provide a blink status display via void blinkLED(int pin, int blinkcount, bool forever)

6. Provide a connection to a timeserver so the correct time can be found. Set it up via String myNTPServer = "pool.ntp.org"; uint16_t myNTPInterval = 120 * 60; // Contact the server every 120 minutes (uses time in secs) Get the time via a call: String fullDateTime = myTZ.dateTime(ISO8601); See: https://github.com/ropg/ezTime

7. Provide a basic CONSOLE debug facility via ArduinoTrace a. See full description here: https://github.com/bblanchon/ArduinoTrace b. Turn on/off via the entry: #define ARDUINOTRACE_ENABLE true // Enable ArduinoTrace (false = disable, true = enable)

Needed Libraries: monitor_speed = 115200 lib_deps = ayushsharma82/AsyncElegantOTA@^2.2.6 knolleary/PubSubClient@^2.8 ropg/ezTime@^0.8.3 bblanchon/ArduinoTrace@^1.2.0 khoih-prog/ESPAsync_WiFiManager@^1.10.0

NOTE!!!!!!!! There are 2 libraries with the same name 
ESPAsync_WiFiManager
get the second one khoih-prog/ESPAsync_WiFiManager (note the -) or you will get duplicate definition errors

When using ezTime library // **** NOTE to drop NTP and network connection you need to modify ezTime.h // and comment out // // #define EZTIME_NETWORK_ENABLE

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Error Codes

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LED blink counts

• #define kErrWiFiFailure 3

• #define kErrWiFiGood 4

• #define kErrAzServoFailure 5

• #define kErrGPSInitFailure 6

• #define kErrGPSReadFailure 7

• #define kWaitingOnGPSFix 8

• ** While operating normally 1 long 3 sec blink followed closely by azmith/20 blinks