Waveshare Industrial 8-Channel ESP32-S3 Wifi Relay Module, Onboard Isolated RS485 Interface, Built-In Xtensa 32-Bit LX7 Dual-Core Processor, Up To

Eletechsup 2AO-8AI-8DI-8DO ESP32 Wifi Network Relay Board 4-20MA 0-10V Digital Analog Input Output Module For Smart Switch IOT Simple PLC (DC 12V Only

AC/DC Power Supply ESP32 Development Board Programmable Development Board Wireless Wifi 8 Way Channel 5V Relay Module ESP32-WROOM-32E For Arduino

ESP32 WLED LED Strip Light Controller 15A Fuse Mic DIY Dynamic Lighting UART USB-C Download Energy Saving Relay App Control For RGB IC Addressable

Single-Channel Relay Module For Raspberry Pi Zero/2B/3B/4B, STM32, ESP32, Arduino - 3.3V/5V Relay Expansion Board With Optocoupler Isolation & LED