Is YF-S201 Water Flow Meter Sensor Compatible with Home Assistant (ESPHome)?
Hardware Safety & Electrical Verification
Electrical parameters & logic voltage safety limits before powering ICs
## Compatibility Overview
1/2-inch hall effect turbine water flow sensor measuring water consumption rate and total volume in Home Assistant.
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 | Pulse Counter / 5V |
| Bridge Required | NO |
| Border Router Needed | None |
| Hardware Capabilities & Peripherals | Flow Rate (L/min) Total Volume Consumed (Liters) Note: Exposing entities to Home Assistant requires corresponding YAML component config. |
| Pairing Complexity | Plug-and-Play |
| Factory Reset Instruction | Hold BOOT button for 3s. |
## Step-by-Step Pairing Guide
Factory Reset Device
Hold BOOT button for 3s.
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 (Flow Rate (L/min), Total Volume Consumed (Liters)) report live state changes inside Home Assistant (ESPHome).
Production Code Generator & Preset Toolkit
Pre-configured pinouts & drivers for YF-S201 Water Flow Meter Sensor
Report a Pinout Error or Submit Tested Code Snippets
Found a pin mapping quirk or built a custom ESPHome YAML driver for YF-S201 Water Flow Meter Sensor? Help us keep this matrix 100% accurate.