Is AHT20 Humidity & Temperature Sensor Compatible with Home Assistant (ESPHome)?
Hardware Safety & Verification Specs
Electrical parameters & logic voltage safety limits before powering ICs
## Compatibility Overview
Compact ultra-reliable MEMS temperature and humidity sensor with digital I2C output for smart home environmental monitoring.
Interactive Pinout & Wiring Diagram
Hover over any pin to view voltage limits and pull-up specifications
## Technical Specification Matrix
| Feature / Attribute | Specification / Status |
|---|---|
| Hardware Protocol | I2C Bus / 3.3V |
| Bridge Required | NO |
| Border Router Needed | None |
| Exposed Entities | Ambient Temperature (C) Relative Humidity (%) Dew Point |
| Pairing Complexity | Plug-and-Play |
| Factory Reset Instruction | Hold FLASH button during power-on. |
## Step-by-Step Pairing Guide
Factory Reset Device
Hold FLASH button during power-on.
Initialize Pairing Mode on Home Assistant (ESPHome)
Open Home Assistant (ESPHome) administration console, navigate to Integrations / Add Device, and start pairing scanner.
Confirm Entity Binding & State Verification
Verify that primary entities (Ambient Temperature (C), Relative Humidity (%), Dew Point) report live state changes inside Home Assistant (ESPHome).
Production Code Generator & Preset Toolkit
Pre-configured pinouts & drivers for AHT20 Humidity & Temperature Sensor
Report a Pinout Error or Submit Tested Code Snippets
Found a pin mapping quirk or built a custom ESPHome YAML driver for AHT20 Humidity & Temperature Sensor? Help us keep this matrix 100% accurate.