I thought I’d share a few pointers about developing OPC UA on Android, since our Prosys OPC UA Java SDK has supported Android from version 1.3 onwards. In recent times we’ve had a surge of interest from Android users, who have helped us in understanding some typical use cases of developers on mobile platforms. In this vein, we’ve already shared some of our Android development effort in the form of our Christmas special that was available for a limited time as a preview for our full Android client. It allowed connecting to a Beckhoff programmable logic in our office via OPC UA (the PLC is running Beckhoff’s OPC UA server for Windows CE) and controling a signal light column, which was viewable via a webcam. Continue reading →