Bit-Byte
Bit-Byte
Can you post that controller's snap shot? I don't think that WF2 have Esp32S3 or if so which version's card you've? 
WhatsApp have only 3 limit to pin As a normal user its ok, but in whatsapp business almost all user pinned some useful numbers...
As you say ocr's library ~ 30 mb Its online conversation or offline?