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LC Technology USB to ESP8266 Module. This module provides a USB adapter, that opens up an interface for serial communication with ESP8266 modules. The 4x2 socket fits most ESP8266 modules and is perfectly suited to updating firmware.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.