Documentation & Setup Guide

1. MeOTA Smart-AirSync™ Architecture Overview

MeOTA Platform is an enterprise-grade IoT fleet management and Over-The-Air (OTA) firmware distribution engine powered by the proprietary MeOTA Smart-AirSync™ architecture. It enables connected devices across Smart Farms, Industrial Automation, Solar Telemetry, and Remote Sensors to receive secure remote firmware updates reliably over Wi-Fi and Cellular networks.

2. Installing MeOTA Library in Arduino IDE

1. Download MeOTA.zip library archive.
2. Open Arduino IDE on your computer.
3. Navigate to menu: Sketch ➔ Include Library ➔ Add .ZIP Library...
4. Select the downloaded MeOTA.zip file.
5. Find example sketches under: File ➔ Examples ➔ MeOTA ➔ ESP32_WiFi_OTA

3. ESP32 Wi-Fi Client Quickstart

Copy the production sketch below into your Arduino IDE. (Tip: You can also click '💻 Setup Sketch' on any device row in your console to get this code with your exact server domain & Device ID pre-filled!):

#include <WiFi.h>
#include <MeOTA.h>

const char* ssid     = "YOUR_WIFI_SSID";
const char* password = "YOUR_WIFI_PASSWORD";

// MeOTA Enterprise Cloud Endpoint & Hardware ID
const char* otaServer    = "https://ota.258877.xyz";
const char* deviceId     = "FARM_NODE_01";
const char* currentFwVer = "1.0.0";

MeOTA ota;
unsigned long lastCheck = 0;

void setup() {
  Serial.begin(115200);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  // Initialize MeOTA client (Auto-provisions SN on first connect)
  ota.begin(otaServer, deviceId, currentFwVer);

  // Confirm successful boot to cancel ESP32 automatic rollback
  ota.markAppValid();

  // Send initial heartbeat (Battery 95%, Wi-Fi RSSI)
  ota.sendHeartbeat(95, WiFi.RSSI());
}

void loop() {
  // Check for firmware updates every 60 seconds
  if (millis() - lastCheck > 60000) {
    lastCheck = millis();

    MeOTAUpdateInfo update = ota.checkUpdate();
    if (update.updateAvailable) {
      Serial.printf("New version %s found! Upgrading...\n", update.targetVersion.c_str());
      ota.updateFromWiFi(update);
    } else {
      Serial.println("Firmware is up to date.");
    }
  }
}

4. Sensor & Farm Telemetry Integration

MeOTA is not limited to OTA updates; devices can also send sensor telemetry directly to your fleet console:

// Send farm sensor telemetry: Soil Moisture, Air Temp, Humidity, Valve Status
DynamicJsonDocument doc(256);
doc["soil_moisture"] = 65.4;
doc["temperature"]   = 28.5;
doc["humidity"]      = 74.2;
doc["valve_state"]   = "OPEN";
doc["group"]         = "Smart Farm Zone A";

String jsonString;
serializeJson(doc, jsonString);

// Push telemetry to MeOTA cloud
ota.sendTelemetryJson(jsonString);

5. Dual-Boot A/B Safe Rollback (Anti-Brick Architecture)

ESP32 flash memory is split into dual partitions (ota_0 and ota_1):

• When a new firmware binary is received, it is flashed to the inactive partition and boot priority is switched in state PENDING_VERIFY.
• Upon booting and establishing network connectivity, ota.markAppValid() permanently confirms the update.
• If the new firmware crashes or boot loops: The hardware bootloader immediately rolls back to the previous working slot. Zero downtime, zero bricked hardware!

6. Automated Serial Numbers & Fleet Grouping Analytics

MeOTA provides automated zero-touch device onboarding and full fleet grouping capabilities designed for commercial deployments:

7. REST API Reference (Clean URLs)

Hardware clients and external platforms can communicate via clean HTTP REST endpoints:

8. Troubleshooting & FAQ