Latest ESP32 libraries too big, uses 119% of memory

Sketch can be compiled using older library versions (uses 94%):

Linking everything together...
Multiple libraries were found for "WiFi.h"
 Used: /home/jarkko/Arduino/hardware/espressif/esp32/libraries/WiFi
Multiple libraries were found for "BLEDevice.h"
 Used: /home/jarkko/Arduino/libraries/ESP32_BLE_Arduino
Using library WiFi at version 1.0 in folder: /home/jarkko/Arduino/hardware/espressif/esp32/libraries/WiFi 
Using library PubSubClient at version 2.6 in folder: /home/jarkko/Arduino/libraries/PubSubClient 
Using library ESP32_BLE_Arduino at version 0.4.7 in folder: /home/jarkko/Arduino/libraries/ESP32_BLE_Arduino 
Sketch uses 1234222 bytes (94%) of program storage space. Maximum is 1310720 bytes.
Global variables use 77392 bytes (26%) of dynamic memory, leaving 217520 bytes for local variables. Maximum is 294912 bytes.

How to build using older libraries?

Solution1: Checkout old version of ESP32 libraries and rebuild sketch.

1. cd ~/Arduino/hardware/espressif/esp32
2. git checkout 52d47054
3. git submodule update --init --recursive &&
   cd tools &&
   python2 get.py
4. Start/restart Arduino IDE and rebuild sketch

Solution2: You got any ideas? Please comment.

[rishaldyprisly]

I have solution for this, you just need to edit Boards.txt in esp32 hardware directory in your arduino IDE. please email me for further information

[Mikx5]

To get more space for your sketch you need :

• to modify the partitions ( for details https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/partition-tables.html ) -to modify board.txt accordingly

step by step on Windows10 with in your local installation C:\Users\xxx\xxx\Arduino\hardware\espressif\esp32\tools\partitions

you can see the file default.csv which need to be modified you can also see other file which could fit your needs, one has no ota anotherone has ota and small spiffs In our case the best is “min_spiffs” that gives 2mb for sketch and you can still use OTA, and ble wifi, mqtt, string, works fine copy your default.csv in default.old
duplicate the min_spiffs.csv and rename it to the “default.csv” As you can see in the partition table You have size is in hex, it is 1E0000.

You need to put this value to the boards configuration file that is under: C:\Users\xxxxx\xxxx\Arduino\hardware\espressif\esp32 You need to find your board in the file , and change the upload.maximum_size from the default to the new amount, in my case it is 1E0000, but you cannot put it there in hex, You need to change it to dec so for 1E0000 you will get 1966080 So for my board DOIT DEVKIT V1 it should look like this: esp32doit-devkit-v1.upload.maximum_size=1966080 Restart arduino IDE, compile the skecth and you see that you have the space required and even more …