Other OTA options

[iMina]

Great work ! Thank you !!
I already see a great infrastructure and very simplified interface. However, why not expand it ?
It would be really handy if the option to manually supply the fota.json instead of providing its URL.
Also the option to manually provide the OTA directly might be useful.
I am actually working on a project now that involves both, trying to find a workaround for them, and natively supporting them would be great !

[chrisjoyce911]

You need some way to check if the current firmware is out of date, the firmware.json includes this information.

{
    "type": "esp32-fota-http",
    "version": 2,
    "host": "192.168.0.100",
    "port": 80,
    "bin": "/fota/esp32-fota-http-2.bin"
}

manually provide the OTA directly

I'm guessing you are wanting a feature to do something like

void loop()
{

  int newVersion = 2; 
  esp32FOTA.setHost =  "192.168.0.100";
  esp32FOTA.setPort =  80;
  esp32FOTA.setBin =  "/fota/esp32-fota-http-2.bin;

  bool updatedNeeded = esp32FOTA.execVersionCheck(newVersion);
  if (updatedNeeded)
  {
    esp32FOTA.execOTA();
  }

  delay(2000);
}

[szundi]

Hey @chrisjoyce911, maybe we should write a helper function that includes your just posted code? This way the lib would have the feature.

[chrisjoyce911]

I agree , it would be a simple improvement and could look like

esp32FOTA.forceUpdsate("192.168.0.100",80,"/fota/esp32-fota-http-2.bin")

[szundi]

perfect, just take care about the typos. :)

[chrisjoyce911]

I've just pushed up a solution c8db6ef but have not tested it yet

[chrisjoyce911]

Will include in next release

[ZZKK000]

@chrisjoyce911
Hello, If the esp32FOTA library can work with W5500 together with Ethernet2 library? or better with httpOTA?

[tobozo]

hey @ZZKK000 it should work (already tested with enc28j60 and wt32-eth01) provided you maintain a variable with the connection state, and assign a getter to the FOTA object using FOTA.setStatusChecker( fn )

bool eth_connected = false;

static bool EthernetConnected()
{
  return eth_connected;
}

// using WiFiEvent to handle Ethernet events :-)
void WiFiEvent(WiFiEvent_t event)
{
  switch (event) {
    case ARDUINO_EVENT_ETH_START:
      Serial.println("ETH Started");
      ETH.setHostname("esp32-ethernet");
      break;
    case ARDUINO_EVENT_ETH_CONNECTED:
      Serial.println("ETH Connected");
      break;
    case ARDUINO_EVENT_ETH_GOT_IP:
      Serial.printf("ETH MAC: %s, IPv4: %s%s, %dMbps\n", ETH.macAddress().c_str(), ETH.localIP().toString().c_str(), ETH.fullDuplex()?", FULL_DUPLEX":"", ETH.linkSpeed() );
      eth_connected = true;
      break;
    case ARDUINO_EVENT_ETH_DISCONNECTED:
      Serial.println("ETH Disconnected");
      eth_connected = false;
      break;
    case ARDUINO_EVENT_ETH_STOP:
      Serial.println("ETH Stopped");
      eth_connected = false;
      break;
    default:
      break;
  }
}

void setup()
{
  Serial.begin(115200);
  {
    auto cfg = FOTA.getConfig();
    cfg.name         = firmware_name;
    cfg.manifest_url = FOTA_URL;
    cfg.sem          = SemverClass( firmware_version_major, firmware_version_minor, firmware_version_patch );
    cfg.check_sig    = check_signature;
    cfg.unsafe       = disable_security;
    //cfg.root_ca      = MyRootCA;
    //cfg.pub_key      = MyRSAKey;
    FOTA.setConfig( cfg );
    FOTA.setStatusChecker( EthernetConnected );
  }
  WiFi.onEvent( WiFiEvent );
  ETH.begin();
}

[ZZKK000]

@tobozo
Thanks!

[ZZKK000]

Hi, guys, there are two kinds of OTA:

1. Firmware is stored in a file server, esp32 nodes get the firmware as http client actively.
2. Firmware is stored in a computer as web client and actively post the bin file to esp32 nodes which act as multiple web servers
   if you have thousands esp32 nodes, which method is better?

[tobozo]

@ZZKK000 although esp32FOTA has received features that seem industrial, it is still a hobby project and shouldn't be considered as production ready for any industrial use.

If you have thousands esp32 nodes I suggest you drop esp32FOTA and adopt a more industrial approach e.g. based on esp-idf and secureboot.