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[PXCT-1603] Nesso N1 t incompatible I2C address for Modulino Thermo #2783

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91volt merged 6 commits into from
Dec 18, 2025
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[PXCT-1603] Nesso N1 t incompatible I2C address for Modulino Thermo #2783

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Merge branch 'main' of https://github.com/arduino/docs-content
91volt Dec 16, 2025
51f31ab
Update thermo module incompatibility informations
91volt Dec 16, 2025
09c77b9
remove notes in compatibility.yml
91volt Dec 17, 2025
cb6b26c
Update feature list thermo warning
91volt Dec 17, 2025
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Update content/hardware/09.kits/maker/nesso-n1/features.md
91volt Dec 18, 2025
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Update content/hardware/09.kits/maker/nesso-n1/tutorials/user-manual/…
91volt Dec 18, 2025
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3 changes: 0 additions & 3 deletions content/hardware/09.kits/maker/nesso-n1/compatibility.yml
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Expand Up @@ -13,6 +13,3 @@ hardware:
- modulino-knob
- modulino-movement
- modulino-pixels
- modulino-thermo


4 changes: 2 additions & 2 deletions content/hardware/09.kits/maker/nesso-n1/features.md
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Expand Up @@ -19,7 +19,7 @@ The onboard 1.14-inch color touchscreen provides a clear and intuitive way to di
</Feature>

<Feature title="Expandable With Grove, Qwiic & HAT" image="connection">
Easily integrate a wide range of sensors and peripherals from the Arduino Modulino family and third-party modules using the built-in Grove, Qwiic, and 8-pin HAT connectors for plug-and-play expansion.
Easily integrate Modulino and third-party sensors using the built-in Grove, Qwiic, and 8-pin HAT connectors for plug-and-play expansion. <strong>Note:</strong> Modulino Thermo is not supported on the Qwiic connector.
</Feature>

<Feature title="Built-in 6-Axis IMU" image="imu">
Expand All @@ -42,4 +42,4 @@ Transform traditional appliances into smart devices using the onboard infrared (
Three programmable buttons and an onboard buzzer offer flexible control and audible feedback for your applications.
</Feature>

</FeatureList>
</FeatureList>
8 changes: 6 additions & 2 deletions content/hardware/09.kits/maker/nesso-n1/tutorials/user-manual/content.md
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Expand Up @@ -314,6 +314,8 @@ The Nesso N1 uses two PI4IOE5V6408 I/O expanders (addresses `0x43` and `0x44`) t
| `LCD_BACKLIGHT` | E1.P6 | LCD Backlight Control |
| `LED_BUILTIN` | E1.P7 | Onboard Status LED (Green) |

***Because expander E1 already occupies I2C address `0x44`, any external device that also uses `0x44` cannot share the bus. The Modulino Thermo module uses address `0x44`, so it is not compatible with the Nesso N1 when connected through the Qwiic connector.***


The configuration of a digital pin is done in the `setup()` function with the `pinMode()` function:

Expand Down Expand Up @@ -1413,7 +1415,9 @@ The Qwiic system’s key advantages include:

***The Qwiic connector on the Nesso N1 is connected to the primary I2C bus, which uses the standard `Wire` object. The connector provides a 3.3 V supply, making it ideal for modern sensors.***

The Qwiic connector allows you to interface with our Modulino family for developing soldering-free projects.
***__Important:__ The Modulino Thermo module cannot be used with the Nesso N1 Qwiic connector because both the module and an internal I/O expander use I2C address `0x44`.***

The Qwiic connector allows you to interface with our Modulino family for solder-free project development, except for the Modulino Thermo module on the Qwiic port.

![Modulino nodes](assets/modulino.png)

Expand Down Expand Up @@ -1481,4 +1485,4 @@ Join our community forum to connect with other Nesso N1 users, share your experi

Please get in touch with our support team if you need personalized assistance or have questions not covered by the help and support resources described before. We are happy to help you with any issues or inquiries about the Nesso N1.

- [Contact us page](https://www.arduino.cc/en/contact-us/)
- [Contact us page](https://www.arduino.cc/en/contact-us/)
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