The Arduino talks to a USB card reader using a USB host shield. Then it communicates with the PLC using an RS232 link and the DF1 protocol that most Allen Bradley PLCs understand.

The Arduino had plenty of I/O to wire up with the card reader’s interface. It also had a serial interface which made outputting data a snap.

The Arduino has long since proven itself to be one of the biggest boons to DIY heads since the soldering iron, but that doesn't mean it's not still able to impress, as amply demonstrated by this ...

Using the power of Arduino and utilizing the camera and powerful performance of a smartphone, QLRO has created a fantastic 3D scanner aptly named the AAScan. This innovative device leverages the ...

New GSM Shield from Arduino includes global data tariff. Charles Gantt TweakTown Published Mar 11, 2013 11:30 AM CDT Updated Nov 3, 2020 12:24 PM CST ...

It’s based on an Arduino MEGA with a USB host shield and a MIDI shield. In the demo I’m using an Arturia Beatstep Pro, a Novation Bass Station, Alesis DM5 drum synth, and a Korg X5D.” ...

A new Kickstarter project aims to give Raspberry Pi and Arduino boards Internet access throughout the world with an add-on that allows integration with a SIM card. SparqEE Cellv1.0 would need to ...