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

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#1 17949157 07 May 2019 21:23

heyka heyka

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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.
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#2 17949195 07 May 2019 21:35

Anonymous Anonymous

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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

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17949222 07 May 2019 21:48

Thank you for your quick response.
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