Hey to all i want to transfer data from arduino sensors to esp8266 and then send then over the internet to a web server.How can i connect to each other Make the communication from arduino to esp32 plz give me wireing diagram
Make the communication from arduino to esp32 plz
Do you mean that the Arduino board and the ESP32 will be connected directly rather than by wireless or over the internet ?
If so, then the simplest method is to use a serial link between the two. Connect Tx on one to Rx on the other both ways. Write the data on one end and receive it on the other. Interpret it and use it
If that is not what you want then please explain in more detail
Hi,
It would be easier to us an ESP32 and get it to do the sensor interface instead of the Arduino.
Tom... 
esp8266 is less pins i want to interface with 10 sensor thats way i connect esp with arduino
You will want to level shift the 5 volts out of the Arduino to 3.3V of the ESP8266. The ESP8266 is not 5V tolerant.
I recently created an HVAC monitor with 14 inputs and used an ESP-01 for WiFi connection. I used a Teensy LC though, instead of an Arduino. The Teensy is 3.3v.
Here is the schematic I used to wire it all up.
microjack64:
esp8266 is less pins i want to interface with 10 sensor thats way i connect esp with arduino
ESP32 has lots more pins then 8266.
That is why it is so much better.
Have you had a look at its specs and what it can do?
Here is a pinout of one example;
Tom...
use the ESP32 to read the sensors.
post what the sensors are. many are be fed direclty into an ESP32
some requie level shifters
some can talk with something like and I2C bus to make things simple