esp32c3 arduino ide i2c device not found

maggymtac
Posts: 30
Joined: Wed Aug 04, 2021 7:47 am

esp32c3 arduino ide i2c device not found

Postby maggymtac » Tue Aug 17, 2021 8:58 pm

Hello,

I plug my LCD SDA on IO4 and SCL on IO5 of ESP-C3-13, i execute the code on Arduino IDE, no device i2c founded (works on ESP8266).

Have you an idea about this problem?

Thank you.


maggymtac
Posts: 30
Joined: Wed Aug 04, 2021 7:47 am

Re: esp32c3 arduino ide i2c device not found

Postby maggymtac » Fri Aug 20, 2021 3:15 pm

Can you confirm GPIO4 and GPIO5 it's for I2C? If i understand, i2c is fixed 8 days ago on repository arduino-esp32? Me i use arduino IDE with esp32 2.0.0 rc1.

chegewara
Posts: 2364
Joined: Wed Jun 14, 2017 9:00 pm

Re: esp32c3 arduino ide i2c device not found

Postby chegewara » Fri Aug 20, 2021 4:05 pm

This is very simple fix, you can do try it on your local RC1 copy.

maggymtac
Posts: 30
Joined: Wed Aug 04, 2021 7:47 am

Re: esp32c3 arduino ide i2c device not found

Postby maggymtac » Tue Oct 05, 2021 5:18 pm

I try again with rc2, i2c not found on my esp.

chegewara
Posts: 2364
Joined: Wed Jun 14, 2017 9:00 pm

Re: esp32c3 arduino ide i2c device not found

Postby chegewara » Tue Oct 05, 2021 6:30 pm

Did you try I2C scanner?
I am using currently master branch (with S2), but im pretty sure that RC2 is also fixed.
Maybe try to add SDA and SCL pins into Wire.begin(SDA, SCL);

maggymtac
Posts: 30
Joined: Wed Aug 04, 2021 7:47 am

Re: esp32c3 arduino ide i2c device not found

Postby maggymtac » Wed Oct 06, 2021 3:27 pm

chegewara wrote:
Tue Oct 05, 2021 6:30 pm
Did you try I2C scanner?
I am using currently master branch (with S2), but im pretty sure that RC2 is also fixed.
Maybe try to add SDA and SCL pins into Wire.begin(SDA, SCL);
Yes i use I2C scanner with my esp32-C3.

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