Hardware Matrix

Is Solid State Relay (SSR-25DA) 25A Module Compatible with Home Assistant (ESPHome)?

Verdict Badge
VERDICT: [ COMPATIBLE โ€” MANUAL YAML CONFIGURATION REQUIRED ]
Protocol: Digital GPIO / 3.3V
Bridge Needed: NO

Hardware Safety & Electrical Verification

Electrical parameters & logic voltage safety limits before powering ICs

๐Ÿ”ด Logic Shifter Required ๐Ÿงช Verified in Lab
Signal Logic GPIO Logic: 5V TTL Signal
Input Power USB Input: 5V DC (3.3V LDO)
Current Profile Peak Tx Current: ~180mA to ~250mA @ 3.3V
Enclosure Rating None (Exposed Board)

## Compatibility Overview

25A solid state relay module enabling silent zero-cross switching for high-power heating elements and AC loads.

Interactive Pinout & Wiring Diagram

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

VCC
5V Power Supply
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 Digital GPIO / 3.3V
Bridge Required NO
Border Router Needed None
Exposed Entities
Solid State Relay Switch Zero-Cross Switching State
Pairing Complexity Plug-and-Play
Factory Reset Instruction Hold BOOT button for 3s.

## Step-by-Step Pairing Guide

1

Factory Reset Device

Hold BOOT button for 3s.

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 (Solid State Relay Switch, Zero-Cross Switching State) report live state changes inside Home Assistant (ESPHome).

Production Code Generator & Preset Toolkit

Pre-configured pinouts & drivers for Solid State Relay (SSR-25DA) 25A Module

Test in Wokwi Simulator โ†—
   
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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 SSR control.
What is the expected Battery Life & Power specification?
3.3V-32V DC control input (Signal=GPIO16).
How does Signal Mesh & Range Extension function?
Wi-Fi 2.4GHz.

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