OpenAV http://openavproductions.com/artyfx/
2 Pedalboards using it

Della

Plugin screenshot
Delay

BPM dependant delay with feedback

Control Default Min Max
Time 0.50 0.00 1.00
Volume 0.50 0.00 1.00
Feedback 0.25 0.00 1.00
Active 1.00 0.00 1.00
http://www.openavproductions.com/artyfx#della v.1:2.0-2