Sketch too big, but identical sources are compiling and flashing under esp-idf environment

[croisez]

I am writing a program which uses following capabilities of the ESP32: Blufi protocol, reception of BLE advertisings, HTTPS post (WiFiClientSecure), and WiFi.

I have written such program using Eclipse/esp-idf and it is compiling/flashing fine.
I wanted to try the Arduino way, and I am stuck with size of sketch too big error.

Multiple libraries were found for "WiFi.h"
 Used: /Users/lmc/Dropbox/arduino/hardware/espressif/esp32/libraries/WiFi
 Not used: /Applications/Arduino.app/Contents/Java/libraries/WiFi
Using library Blufi at version 1.0 in folder: /Users/lmc/Dropbox/arduino/hardware/espressif/esp32/libraries/Blufi 
Using library WiFiClientSecure at version 1.0 in folder: /Users/lmc/Dropbox/arduino/hardware/espressif/esp32/libraries/WiFiClientSecure 
Using library WiFi at version 1.0 in folder: /Users/lmc/Dropbox/arduino/hardware/espressif/esp32/libraries/WiFi 

Sketch uses 1,095,399 bytes (104%) of program storage space. Maximum is 1,044,464 bytes.
Global variables use 70,684 bytes (23%) of dynamic memory, leaving 224,228 bytes for local variables. Maximum is 294,912 bytes.
processing.app.debug.RunnerException: Sketch too big; see http://www.arduino.cc/en/Guide/Troubleshooting#size for tips on reducing it.

The functionalities are very identical, I don't include unused #includes.
As concern Blufi, I have written a lib for ESP32-Arduino from the Blufi example found in esp-idf.

How could I workaround this error and make my sketch flashable?

[me-no-dev]

bluetooth and wifi use a whole lot of flash and in Arduino's partition config there are 2 sketch partitions 1MB each. I guess you went over that, which means that it will step into the next partition. I've seen report before and I have hit the limit myself. Taking more space for sketch means that it will be twice that much less available for SPIFFS when it comes. I might try to 1.25MB and have 0.5MB less SPIFFS

[torntrousers]

I have the same problem when using BLE and WiFi. Is tweaking the partition size something simple to do which I can try locally?

[me-no-dev]

Here is the partition definition: https://github.com/espressif/arduino-esp32/blob/master/tools/partitions/default.csv
you can try to adjust the size from the first ota partition onward

[antelder]

I can't work out the partition definitions! Changing app0 to 2M - "app0, app, ota_0, 0x10000, 2M" I still get the Sketch to big error and "Sketch uses 1068755 bytes (102%) of program storage space. Maximum is 1044464 bytes.". Could you show me an example default.csv for if I don't use OTA or SPIFFS and just want a big enough 1 sketch partition?

[me-no-dev]

stupidity on my end... you need to change the maximum size in the board definitions also
https://github.com/espressif/arduino-esp32/blob/master/boards.txt#L10

[antelder]

Ok yes changing that too does get the compile working again. Thanks!
This was working ok with the Arduino/ESP32 code from 17Apr and earlier so somethings happened since then to increase this sketch from using 82% to 102% of the 1M partition size. Is that some transient thing or whats the long term solution here?

[me-no-dev]

Long term is to increase the partition size :) BT stack is huge

[antelder]

Its a bit of a pain to have to manually fiddle about updating system files so I hope you mean increase the default? That would be good, even the small change you mention above - 1.25MB and have 0.5MB less SPIFFS - would be enough to get this sketch working.

[me-no-dev]

Yes i will increase it :)

[Nakul93]

How to increase the partition size? I have tried changing the csv file but it didn't work. Please give me an example.

[me-no-dev]

what did you change it to? what was the error that you got?

[shahabmusic]

how did you change those numbers? please help

[beegee-tokyo]

@shahabmusic @Nakul93 Small tutorial: Change partition size