SAP Arduino Tiny Calc Part_ 2
1)3V 2)easy 3)simple 4)home made5)portable How to Run It Independent ? Reference link : http://ift.tt/2zPPjWP am figuring about how to disconnectthe COM cable from the arduino out !after the tiny calc part 1 finished ......so , i add some elements here. Mater...By: David_Lin
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