esp32 call

Thread Starter

Chip30

Joined Apr 8, 2021
4
Hi all,
I bought some esp32 boards
and I would like to try to add a GSM module to make calls on the phone.
Can you advise me what models to buy?
I don't understand what to buy that will be fine.
800/900 or other
Thank you
 

Yaakov

Joined Jan 27, 2019
3,519
If you want to make and receive voice calls with the SIM900 you will need a module that includes the audio hardware. I know there is one for the Arduino in shield form, but I don't know if there is a generic one.

Look for a couple of audio jacks for mic and speaker. Also, make sure there is a supported ESP32 compatible library.
 

Thread Starter

Chip30

Joined Apr 8, 2021
4
Hi Yaakov,
I meant calls only at the ringing level, as well as sending sms.. not speaking :)
sorry for my english..

so i understood that a sim900 can be good for esp32


thanks
 

Yaakov

Joined Jan 27, 2019
3,519
Hi Yaakov,
I meant calls only at the ringing level, as well as sending sms.. not speaking :)
sorry for my english..

so i understood that a sim900 can be good for esp32


thanks
The device can send a ring notification on the serial line, and receive SMS. It will work with the ESP32, just choose a good library.
 
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