B4R Question How to use Arduino for pay system about charging ev car by qrcode?

Theera

Theera

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Longtime User
Who have a example for study ,How to apply about this? I don't know how it works.

Best Regards,
Theera
 
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peacemaker

peacemaker

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Longtime User
Just firstly list the objects of the process, events, and roles of the subjects. How you see all (or imagine).
 
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