Hy guys i need your help i am looking for the best method of sending data from Esp32 to Arduino between i2c and UART.
I tried to do that using UART but Arduino uno is sending data and esp32 is receiving well but the problem is sending data from Esp32 and Arduino receiving . I need your help
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are you using an Arduino UNO using SoftwareSerial ?
if so how you connected it and what baudrate are you using?
An Arduino Mega using hardware serial would be a better option
note that the ESP32 uses 3.3V logic and the UNO 5 V logic - the Tx line from the UNO to the ESP32 should use a voltage divider
But ... if you have an ESP32 which is a far more capable processor, why would you want to use an Arduino (and of what sort?) in addition? 
Oky thank you , what about the code , i am uploading the one that i wrote
I have many components so i am connecting some components on the arduino
Generally far simpler to connect them all to one microcontroller, and since the ESP32 is the more powerful and provides WiFi, no reason to use an Arduino. 
@tadiwanashehinooneka
I suspect you are posting your replies before the files you are uploading have had chance to upload. Please can you edit your posts with the missing images and make sure the files upload before you save your changes.
Thanks,
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