ESP32-A1S 2019 I2C

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shabtronic
Posts: 49
Joined: Sun Nov 03, 2019 1:33 pm

ESP32-A1S 2019 I2C

Postby shabtronic » Sun Nov 03, 2019 1:39 pm

Hi - First time poster

I recently found the A1S model - it's like a dream come true with it's audio capabilities for my needs.
I'm looking to buy the ESP32-A1S 2019 model - but can't seem to find the I2C pins - I need to connect a Oled. Are the pins shared with jtag or uart or something?

many thanks

Shabby

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shabtronic
Posts: 49
Joined: Sun Nov 03, 2019 1:33 pm

Re: ESP32-A1S 2019 I2C

Postby shabtronic » Sun Nov 03, 2019 5:25 pm

Hi Folks

Answering my own question after a few hours research

I2C is on pins io21 and io22 SCL/SDA - I'm new to this so got confused with the pin mapping :P

here's the board image:

Image

WiFive
Posts: 3529
Joined: Tue Dec 01, 2015 7:35 am

Re: ESP32-A1S 2019 I2C

Postby WiFive » Sun Nov 03, 2019 10:03 pm

i2c pins are configurable, not fixed

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shabtronic
Posts: 49
Joined: Sun Nov 03, 2019 1:33 pm

Re: ESP32-A1S 2019 I2C

Postby shabtronic » Sun Nov 03, 2019 10:12 pm

Hey thanks for the info - yeah I found the pins 21/22 - just a noob mistake with the io pin mapping and chip pin mapping :)

Happy now - my project can go forward!

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