I need an electronic device, able to control a 4x4 matrix keyboard and magnetic stripe reading tracks (1 & 2)
You should save your data in an internal memory for downloading via serial.
the device must have minimum measures.
This link provides an example
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reference not to use the values ​​published in the website, therefore I am looking for more economical solutions and real.
6 freelancer đang chào giá trung bình $1060 cho công việc này
Over 20 years experience in hardware and software development. Hablo perfecto español, asi que nos podemos entender mejor. Check your PM for experience field and my previous projects.