Hardware Matrix

Is SONOFF SNZB-02D LCD Zigbee Temp & Humidity Sensor Compatible with Home Assistant (ZHA)?

Verdict Badge
VERDICT: [ NATIVELY SUPPORTED ]
Protocol: Zigbee 3.0
Bridge Needed: NO

Hardware Safety & Electrical Verification

Electrical parameters & logic voltage safety limits before powering ICs

๐ŸŸข 3.3V Native Direct Hookup ๐Ÿงช Verified in Lab
Power Input 5V DC via USB-C / VBUS
GPIO Logic Voltage 3.3V Logic Level โ€” Level Shifter Required for 5V peripherals
Current Profile Peak Tx Current: ~180mA to ~250mA @ 3.3V
Ingress Protection None (Exposed Board โ€” Enclosure Required)

## Compatibility Overview

Compact Zigbee 3.0 temperature and humidity sensor featuring a high-contrast 2.5-inch LCD screen for desktop climate monitoring.

Interactive Pinout & Wiring Diagram

Hover over any pin to view voltage limits and pull-up specifications

VCC
3.3V Power
GND
Ground Common
SDA / TX
Data Line (GPIO 21)
SCL / RX
Clock Line (GPIO 22)
CS / INT
Chip Select (GPIO 19)

## Technical Specification Matrix

Feature / Attribute Specification / Status
Hardware Protocol Zigbee 3.0
Bridge Required NO
Border Router Needed Standard Zigbee Coordinator
Hardware Capabilities & Peripherals
Temperature (C) Relative Humidity (%) Battery Level (%)

Note: Exposing entities to Home Assistant requires corresponding YAML component config.

Pairing Complexity Plug-and-Play
Factory Reset Instruction Press and hold pairing button on side for 5 seconds until Zigbee icon flashes.

## Step-by-Step Pairing Guide

1

Factory Reset Device

Press and hold pairing button on side for 5 seconds until Zigbee icon flashes.

2

Initialize Pairing Mode on Home Assistant (ZHA)

Open Home Assistant (ZHA) administration console, navigate to Integrations / Add Device, and start pairing scanner.

3

Confirm Entity Binding & State Verification

Verify that primary entities (Temperature (C), Relative Humidity (%), Battery Level (%)) report live state changes inside Home Assistant (ZHA).

Production Code Generator & Preset Toolkit

Pre-configured pinouts & drivers for SONOFF SNZB-02D LCD Zigbee Temp & Humidity Sensor

Test in Wokwi Simulator โ†—
   
๐Ÿ‘ฅ Community Verified Database Continuous hardware testing updates

Report a Pinout Error or Submit Tested Code Snippets

Found a pin mapping quirk or built a custom ESPHome YAML driver for SONOFF SNZB-02D LCD Zigbee Temp & Humidity Sensor? Help us keep this matrix 100% accurate.

## Frequently Asked Questions

Does this device operate in Offline Mode?
100% local Zigbee telemetry.
What is the expected Battery Life & Power specification?
CR2450 coin cell battery.
How does Signal Mesh & Range Extension function?
Zigbee End Device.

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