Any of the ESP32 devices can do what you want. The ESP32-S3 IMHO has the best bang for buck. I suggest you start with the ESP32-S3-DevKitC-1 v1.1 https://docs.espressif.com/projects/esp-idf/en/latest/esp32s3/hw-reference/esp32s3/user-guide-devkitc-1.html The head over to the examples to get a leg up...

What you want is VSCode portable. Go here: https://code.visualstudio.com/download# Grab the .zip for your computer. What I have done is this. Create a folder ESP_5.1, then create a folder inside there named VSCPortable. Unzip the VSCodeportable to this folder. You also need to add another folder nam...

The OTA i created for myself also uses a web page with a progress bar.
What i did was have the webpage itself show the progress by what it has sent so far, and not have it updated by the ESP32.

228k is nothing for a 8MB part. You have to keep in mind this is not an Atmega, but uses an RTOS and has some overhead.
Also Arduino also adds more overhead as well. If you really want to shrink things down, use IDF.

look in the examples folder, and check out the SPI examples.
https://github.com/espressif/esp-idf/tr ... eripherals

If you do this and its still high, something else is going on.

gpio_reset_pin(GPIO_NUM_20); gpio_set_direction(GPIO_NUM_20, GPIO_MODE_OUTPUT);gpio_set_level(GPIO_NUM_20, LOW);

Thanks, but for the version that all are empty. There is nothing before nvs, so how does it know where to start ?

A much better A/D converter. Pins for Vref & power to A/D converter.

Yes, all you need is to use Tx,Rx, GPIO0 & Reset. Get yourself one of these and connect the wires to your board. https://www.digikey.com/en/products/detail/espressif-systems/ESP-PROG/10259352 Or, if you have a simple USB to serial cable like one of these you can do it as well. https://www.amazon.com...

I have seen 2 styles of partiton.csv files in the example folder which I would like clarification on please. Some have an offset value and some do not. Obviously, the ones that don't work, so why do some examples use them and others do not? Is there any reason why we would need to add them ? One sty...