How to change the scale in the tempo knob?

I’d like to change the tempo knob scale. The slowest tempo is 200 bpm I think, when the tempo knob is turned counterclockwise, but I want it to be a certain tempo to sync it with my delay pedal. Is it possible to change it?

Hi, This is covered here: Septavox Swell for 201 Pocket Piano? - #7 by oweno

You will need to install Pure data on your computer to do this modification. Once installed, please follow the instructions for ‘Disk Mode’ here:
Open up mother.pd and then the [pd metronome] subpatch of mother.pd. Set PD to edit mode and make your change.

Great, it works! Thank you!