+6 votes
1 view
in Markets by (520 points)

2 Answers

+1 vote
Skimmers are not hard to come buy, just look up in the web as for how to use them you'll need some coding skills if you plan to use Arduino
by (20.7k points)
+1 vote
https://exchangehd5455aori4qvrwhyno4ul7xrz4foy6qwga3olnbclp5f4qd.on
ion/?7a476eb237
by (27.0k points)
...