Great Library about magstripelib HOT 3 CLOSED

Thanks @MonsieurV & @carlosefr, I added a new blog post with the changes I made to the code. In the blog I go over the changes I made and why I made the changes. I at the end, I state that anyone needing to read from a single card reader should use the magstripelib and why but if they need read from more than one reader they may want to look at the code I posted. @carlosefr , your work on this library made it very easy to make changes and modify the code for my needs. If I did not come across this, I may have trashed the card readers. Now they will sit on my completed projects shelf until there is a want to read a card. ;-)

from magstripelib.

Hi,

Concerning the issue you encountered, maybe using the input mode INPUT_PULLUP (for the two pins used with interrupt) will fix the issue (without requiring to add an external capacitor)?
See:

• https://www.arduino.cc/en/Tutorial/DigitalPins
• https://www.arduino.cc/en/Tutorial/DigitalInputPullup

PS. Great blog post @richteel ; and great library @carlosefr :)

from magstripelib.

Thanks. 🙂

@richteel WRT having an interrupt attached to the data line (as you mention in your blog post), the reason for this is to avoid spending too much time inside the clock interrupt hander. Reading the data pin from there in a compatible way (i.e. using digitalRead() instead of the port registers) would be rather expensive.

from magstripelib.