esphome / esphome/feature-requests

US-100 (Y401) Ultrasonic sensor temperature compensating in Uart/serial mode

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component: ultrasonic Type: Distance
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Description

**Describe the problem you have/What new integration you would like**
Support for the US-100 (Y401) Ultrasonic sensor temperature compensating Uart/serial mode

**Please describe your use case for this integration and alternatives you've tried:**
The speed of sound changes with temperature. I saw this using a HC-SR04 (trigger/echo), with a temperature drop of 25 deg, readings dropped 4" and came back when warmed up.

**Additional context**

Contributor guide

No contributing guide indexed for this repository

Research direction

No source files, tests, or entry points are mentioned. Start by identifying the existing ultrasonic sensor integrations and the US-100 UART/serial protocol, then define how temperature compensation should be configured and tested.

Written by the indexing model from the issue text.

Assessment

Domain
embedded-iot
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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