I presume you want to add the rotary encoders to the actual dropController device. if so this would need a major re-write/upgrade to the sketch. You also have the problem of displaying the drop values. If you want the app to update then you would need to feed the data back to the app so a rewrite of the app would be required.
It might be worth looking at the original dropController. This is self contained and uses a keypad and LCD. No Bluetooth or app. I no longer support it but you can download the sketch here: http://www.dropcontroller.com/wp-content/uploads/dropController_3_01.zip
Details about the original device can be found at http://www.dropcontroller.com/old-dropcontroller-original-version/
One of the reasons I built the dropController in the first place was because I wanted better control over the drop data. Looked at some of the commercial devices and didn’t like the way they were controlled.
- This reply was modified 5 years, 6 months ago by Martyn.