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ANTANTEATEREATER

Antanteatereater is a guitar/bass effect pedal which consists of a euclidean sequencer running into a VCA. It is based around the digital HY-ESG plugin, but using an analog envelope generator and vca, as well as being in a physical format.

The euclidean sequencer runs on an MCU, in this case an arduino nano, simply because I had one lying around. The pedal has 7 controllable inputs:

  • On/Off Button
  • Tap Tempo Button (Sequencer syncs to this)
  • Envelope Attack
  • Envelope Release
  • Step (Total number of steps per cycle)
  • Pulse (Number of steps per cycle which are on)
  • Rotate (Offset of the cycle)

The project is named after the design I chose for it, which is an ant-anteater-eater, aka an ant which eats anteaters :)

The Why -

When I make music, my absolutely most used plugin is HY-ESG. I find it super versatile and very handy for adding some rhythm to otherwise static pads and other noise. I wanted a way to use this effect in live performances, and given I don't like to have things running through my laptop on stage (due to reliability), and the fact that using it requires a lot of extra hardware, I decided to make a version of it that just worked like any regular guitar pedal.

Pictures!

3D Render PCB Top PCB Bottom The wooden top plate will be laser cut and engraved: Top design

Wiring Diagram

(Im so sorry) Wiring Diagram

Item Part Name Quantity Source Link Unit Cost (USD) Total Cost (USD) Notes
U1, U2, U3 Op Amp (LM358DR2G 3 JLCPCB Parts Op Amps 0.08 0.24
R Resistors 23 JLCPCB Parts JLCPCB Basic Minimal Minimal
D Diodes 4 JLCPCB Parts Diodes Minimal Minimal
C Capacitors 9 JLCPCB Parts JLCPCB Basic Minimal Minimal
NA Board + PCBA Fees 1 JLCPCB NA 16.80 16.80
SW1-SW3 Rotary Encoders 3 Aliexpress Rotary Encoders NA 3.32 Batch of five
RV3, RV4 Potentiometers 2 Aliexpress Potentiometers NA 2.12 Batch of two
VR1, VR2 Trim Pots 2 Aliexpress Trim Pots NA 2.5 Batch of ten
Q1-Q3 Transistor 3 Aliexpress Transistors NA 1.12 Batch of 100 (genuinely could not find smaller batch for cheap)
NA 3PDT Switch 1 Aliexpress 3PDT Switch 3.84 3.84
NA Momentary Switch 1 Aliexpress Momentary Switch 5.04 5.04 Looking for cheaper
NA Enclosure 1 Aliexpress Enclosure 3.59 3.59 Just using bottom half
Total Cost 38.57
- - - - - - - -
Item Part Name Quantity Source Link Unit Cost Total Cost Notes
PCB PCB 5 (2 assembled) JLCPCB NA NA 28.3 Incl. Shipping + Tax
Aliexpress Parts Aliexpress Parts NA Aliexpress NA NA 35.46 Incl. Shipping + Tax
Total Cost 63.76

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