Async OTA Firmware update & File management for ESP32.
This sketch will let you:
- Update ESP32 Firmware using a compiled binary file.
- Upload SPIFFS.bin that can contain supporting files that you might need for your project.
- Browse, Delete, and Upload files stored on ESP32 File system.
Make sure that your partition table is ready for OTA. You can select predefined Partition tables in Arduino IDE or create your own.
I used 16MB chip so my partition table looks like this.
Don't forget to include your local network SSID and PASSWORD.
Then when everything is up and runnig you can access main page via esp32.local/ or using ip address that will be reported into a serial monitor.
1. Firmware update is very straightforward. Bin file can be simply generated using Arduino IDE. Then find it, select it and press Update button. If successful there will be a popup window and after presssing OK you will be redirected to the main page. Meanwhile ESP will reboot and rewrite its APP derictory with uploaded bin.
2. SPIFFS.bin upload. For this one I used MKSPIFFS tool to generate SPIFFS.bin file. Command that initiates compiling looks like this:
mkspiffs -c C:\Users\xxxx\Documents\Arduino\OTA_file_management\data -b 4096 -p 256 -s 0x6F0000 spiffs.bin
it compiles everything that is in data folder into one bin file. 0x6F0000 is the size of your SPIFFS partition and depends on partition table you choose.
3. You can browse/delete/upload files stored in SPIFFS.
