Please let me know if the NodeMCU v3 module has hardware support for I2C. I am starting my adventure with Arduino and the aforementioned module and cannot decipher the pin description.

. This is an ESP8266, so it does not have hardware I2C controllers. You can set the SDA/SCL to any GPIOs, but the communication itself is in 'bit-banged' mode, i.e. swiping the pins . The ESP32 has two hardware I2C controllers.

Thank you for your quick response.

Does the NodeMCU v3 have hardware support for I2C? I'm looking for a description of the pins

Reply | New topic

#1 17949157 07 May 2019 21:23

heyka heyka

Level 17

» |

Post #1
17949157 07 May 2019 21:23

Please let me know if the NodeMCU v3 module has hardware support for I2C. I am starting my adventure with Arduino and the aforementioned module and cannot decipher the pin description.

Do you have a problem with Arduino? Ask question. Visit our forum Arduino.
ADVERTISEMENT
Helpful post

#2 17949195 07 May 2019 21:35

khoam khoam

Level 42

» | Helpful post? (+1)

Helpful post
Post #2
17949195 07 May 2019 21:35

heyka wrote:
Please let me know if the NodeMCU v3 module has hardware I2C support.
.
This is an ESP8266, so it does not have hardware I2C controllers. You can set the SDA/SCL to any GPIOs, but the communication itself is in 'bit-banged' mode, i.e. swiping the pins .
The ESP32 has two hardware I2C controllers.
#3 17949222 07 May 2019 21:48

heyka heyka

Level 17

» | Topic author Helpful post? (0)

Post #3
17949222 07 May 2019 21:48

Thank you for your quick response.
Create an account, log in and become active in a forum and ads will not appear. You will receive points by participating in discussions.
Join this discussion.

Install the application

Didn't find an answer? Ask Artificial Intelligence

*I agree to send the question to OpenAI, Anthropic PBC, Perplexity AI, Inc., Kagi Inc., Google LLC - owners of language models in order to prepare the best response. The companies may monitor and log information entered into the form.

*I agree to publicly display my question and answer. The question and answer will be publicly available to everyone. The process may take a few minutes. Upon completion, you will be redirected to the page with the answer.

Wait...(2min)

Reply | New topic

Report a violation of the law

Does the NodeMCU v3 have hardware support for I2C? I'm looking for a description of the pins

Didn't find an answer? Ask Artificial Intelligence