Ubuntu Linux 16.04
Arduino IDE 1.8.1
Goal:
- Test Multicast DNS (mDNS) and Over The Air (OTA) firmware update for using with IoT devices.
Status:
2017.05.09 - It's working.
ToDo:
- Test OTA functions onStart, onEnd, onProgress and onError.
#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
#include <Hash.h>
// OTA firmware update
#include <ESP8266HTTPUpdateServer.h>
const String DEVICE_ID = "Test_OTA_mDNS_v0.0.1";
const char* ssid = "SSID";
const char* password = "pass";
const int httpPort = 8080; // OTA firmware update
#define DEBUG true
#define ARRAY_SIZE 6
String activeClients[ARRAY_SIZE];
ESP8266WiFiMulti WiFiMulti;
// OTA firmware update
ESP8266WebServer httpServer(httpPort);
ESP8266HTTPUpdateServer httpUpdater;
void setup() {
Serial.begin(115200);
if (DEBUG) Serial.println(DEVICE_ID);
for(uint8_t t = 4; t > 0; t--) {
if (DEBUG) Serial.printf("[SETUP] BOOT WAIT %d...\n", t);
Serial.flush();
delay(1000);
}
// ESP Chip Id
if (DEBUG) Serial.println(ESP.getChipId());
WiFiMulti.addAP(ssid, password);
while(WiFiMulti.run() != WL_CONNECTED) {
delay(100);
}
// ESP client IP
if (DEBUG) Serial.println(WiFi.localIP());
// OTA
httpUpdater.setup(&httpServer);
httpServer.begin();
if(MDNS.begin("OTASom4r")) {
if (DEBUG) Serial.println("MDNS responder started");
}
// Add service to MDNS
MDNS.addService("http", "tcp", httpPort);
}
void loop() {
httpServer.handleClient();
}
/*
void onStart(OTA_CALLBACK(fn)) {
Serial.println("onStart");
}
void onEnd(OTA_CALLBACK(fn)) {
Serial.println("onEnd");
}
void onProgress(OTA_CALLBACK_PROGRESS(fn)) {
Serial.println("onProgress");
}
void onError(OTA_CALLBACK_ERROR (fn)) {
Serial.println("onError");
}
*/
Installing mDNS:
- Windows:
- Install Bonjour (included with Safari Browser for Windows).
- Linux:
- sudo apt-get update
- sudo upt-get install libnss-mdns
Testing:
References:
 |
| Site to upload new firmware. |
 |
| Serial log while device is rebooting. |
References:
