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Product Details, 1. Wide range of applications, 2. Onboard mature and stable ESP32-WROOM-32E module, large-capacity 4M Byte Flash;, 3. The I/O ports
AC/DC ESP32 WIFI Bluetooth 4 Channel Relay Module ESP32-WROOM Development Board
In-Depth: Interface Two Channel Relay Module with Arduino
WiFi Thermostat ESP32 and Arduino
T-Relay-8 – An ESP32 board with 8 relays - Ohmify
ESP32 diy 32 relays - Project Guidance - Arduino Forum
ESP32 Relay Module WiFi Control BLE Dev Board, 8 Channel 5 to 30V, Stable with 4M Flash, Suitable for Smart Home Wireless Control - Yahoo Shopping
ESP-32 Development Board 2.4GHz Dual-Mode WiFi+Bluetooth Module – Aideepen
Can i use this instead of separate esp32 board + relay? : r/WLED
Smart Home Automation Using Blynk & ESP32 IoT Projects
A DIY General Purpose WiFi (IP) Based IO Module for Ezlo - EZLogic - Ezlo Community
Interfacing a Relay Module With ESP32