Add a description, image, and links to the esp8266-10a-dc-7-30v-network-relay-wifi-module topic page so that developers can more easily learn about it.

This is a unified OpenSprinkler firmware for Arduino, and Linux-based OpenSprinklers such as OpenSprinkler Pi. For OS (Arduino-based OpenSprinkler) 2.x: https ...

Brand HiLetgo Connectivity Technology Wi-Fi Wireless Communication Standard Bluetooth Product Dimensions 2.2"L x 2"W x 0.5"H WeMos D1 R2 version 1 Analog Input pin OTA -- Wireless Upload(Program) On ...