Persistence stores and graphing - cdjackson/HABmin GitHub Wiki
HABmin allows you to access any queryable persistence store in openHAB. Currently it is relatively simply graphing of up to 8 channels.
The above image shows the graph screen. Select the channels on the left, click the update button, and you should get a graph. You can zoom and scroll using the buttons, or zoom using the mouse.
Note that there is a button in the bottom corner of the screen (it says mysql in the image above). This is used to select different persistence stores if your system has more than one. If you click on this, you will get a list of queryable services that you can select from. If you only have a single store, you shouldn't need to touch this.