# Carrier v1

## Description

First\-pass socketed ESP32\-S3 N16R8 satellite carrier for a 2025 GMC Sierra accessory UI: separate accessory CAN, four LED data outputs, four external relay coil drivers, four protected 12 V trigger inputs and sensor expansion\. Automotive power and socket geometry require validation before fabrication\.

## Project Details

- **Owner:** vegasryan
- **Created:** 10/7/2026
- **Last Updated:** 10/18/2026
- **Visibility:** Public
- **Stars:** 1
- **Copies:** 2

## Key Components

### U9 — Unknown

- Manufacturer Name: Sensirion AG
- Symbol Style: parametric\-v1
- Part Type: Sensor
- Datasheet URL: https://sensirion\.com/media/documents/33FD6951/67EB9032/HT\_DS\_Datasheet\_SHT4x\_5\.pdf
- Manufacturer Part Number: SHT40\-AD1B\-R3
- Role: Board Temperature Sensor
- Role Details: Local I2C board thermometer on MCU A bus; must not bridge MCU B I2C bus
- Functional Group: SENSE U9 Board Temperature

*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://flux\.ai/vegasryan/carrier\-v1\~ro](https://flux.ai/vegasryan/carrier-v1~ro).*

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*Generated from [https://flux\.ai/vegasryan/carrier\-v1\~ro](https://flux.ai/vegasryan/carrier-v1~ro)*