Hi all! I need to connect a TTL bluetooth module with shield to my arduino. I bought this module: http://www.ebay.es/itm/270933615210?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649#ht_1609wt_934 It's the TTL module, but i see this other module: Serial bluetooth module: http://www.ebay.es/i…

Bluetooth TTL to Arduino

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