Free Modular

Envelope

A simple but powerful envelope generator that can cycle between 4 separate modes: traditional ADSR, AR with tunable curves, and two looping modes.

Resources

• Manual
• Assembly instructions and BOM
• Interactive BOM: front panel, back panel
• Faceplate stencil SVG
• GERBER files:
  • Faceplate: JLCPCB, PCBway
  • Front panel: JLCPCB, PCBway
  • Back panel: JLCPCB, PCBway
• (Most) parts on Tayda: cart link, quick-order CSV
• Firmware HEX
• Source code
• Schematic

Details

DIY difficulty: Easy (adding a flying ground buss to the bottom 4 jacks is slightly finicky)
HP: 8
Power usage:

	Typical	Maximum
+5V	21mA	28mA
+12V	NC	-
-12V	NC	-

Available on Etsy

You can buy PCBs, full kits, or hand-assembled modules directly from me on Etsy