ESP32-updating firmware by wireless

Need Help With My Project
1

Hi guys,

Anyone knows any protocol or tutorial about how update firmware of an ESP32 by wireless?

I’m not really convinced, but I found an OTA tutorial but It works inside of the same network. My goal is it works from any network. I need send an update my code from anywhere to an ESP32.

Thanks in advance.

2

This is supported by Blynk Cloud, but available only for business customers at the moment. You can use HTTP OTA, and use Blynk virtual pins to trigger the update.

3

Try ESP32 HTTP OTA I haven’t tested it myself but the concept works with ESP8266.

Basically it downloads the new firmware from HTTP.

4

Thanks ldb
I’ve been reading about this link, but i don’t understand the performance of some functions, i supose too i have to create a HTTP server in some platform to send (.bin) file. could you share me links or tutorials whrere were applied ESP8266 successfuly?

5

I use a free web hosting service to do my HTTP OTA with an ESP8266. This post describes the basics of the system I use:

Pete.

6

@kevinmohu: As I you don’t want to use a web hosting account and all my ESPs are connected locally I’ve tested web servers in my local network on

  • RapsPi
  • NAS Server (most of them have a web server that can be activated)
  • Windows running XAMPP

All working fine with OTA via http.