Involvement:General (knows how to use it) - Ownership:more than 1 month
-Very small and light. Barely noticeable.
-Easy to use. Just plug in the included 4 pin female-female cable to the module and the other end to Vcc, Gnd, Tx and Rx on a Arduino, and your'e ready to go.
-Simple to connect to the module with a terminal...
The lack of reverse polarity protection in the circuit. Be careful not to switch Vcc and Gnd by mistake or it will fr...
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