Hardware Matrix

Is DS18B20 Waterproof Temperature Probe Compatible with Home Assistant (ESPHome)?

Verdict Badge
VERDICT: [ NATIVELY SUPPORTED ]
Protocol: Dallas 1-Wire / 3.3V
Bridge Needed: NO

Hardware Safety & Verification Specs

Electrical parameters & logic voltage safety limits before powering ICs

๐ŸŸข 3.3V Native Direct Hookup ๐Ÿงช Verified in Lab
Logic Voltage 3.3V Low-Power CMOS
Voltage Rating 3.0V - 3.3V DC Rail
Current Profile Peak Tx Current: ~180mA to ~250mA @ 3.3V
Environment Rating IP20 Indoor Climate Control

## Compatibility Overview

Waterproof stainless steel temperature sensor probe ideal for pool aquarium soil or HVAC duct thermal tracking.

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 Dallas 1-Wire / 3.3V
Bridge Required NO
Border Router Needed None
Exposed Entities
Probe Temperature (C) Sensor Serial ID
Pairing Complexity Plug-and-Play
Factory Reset Instruction Hold BOOT button for 3 seconds.

## Step-by-Step Pairing Guide

1

Factory Reset Device

Hold BOOT button for 3 seconds.

2

Initialize Pairing Mode on Home Assistant (ESPHome)

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

3

Confirm Entity Binding & State Verification

Verify that primary entities (Probe Temperature (C), Sensor Serial ID) report live state changes inside Home Assistant (ESPHome).

Production Code Generator & Preset Toolkit

Pre-configured pinouts & drivers for DS18B20 Waterproof Temperature Probe

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

Report a Pinout Error or Submit Tested Code Snippets

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## Frequently Asked Questions

Does this device operate in Offline Mode?
100% local 1-Wire protocol execution.
What is the expected Battery Life & Power specification?
3.3V VCC Data=GPIO4 with 4.7k ohm pull-up resistor to 3.3V.
How does Signal Mesh & Range Extension function?
Wi-Fi 2.4GHz.

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