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1/2/5/10 x ESP8266 Remote Serial Wireless Transceiver WIFI Module Esp-12 AP+STA. Arduino Module. It is not 5V tolant,Connect RX or TX on 5V Arduino will destroy this module. You must use a logic level converter, or a 3.3V Arduino.
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.