ER-BEZIER-CV

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RANDO P1080937-720px.jpg

Features[edit]

NANO Pinout[edit]

Arduino-nano-pinout-877PX.png

HAGIWO Schematic[edit]

HAGIWO BEZIER CV SCHEMATIC-720PX.png

HAGIWO Front Panel[edit]

HAGIWO BEZIER PANEL-CROPPED-720PXV.png

Front Panel Pots/Jacks[edit]

  • 4 pots, 3 jacks

RV1 - Freq[edit]

  • Arduino Analog 0

RV2 - Curve[edit]

  • Arduino Analog 1

RV3 - Sigma[edit]

  • Arduino Analog 2

RV4 - Level[edit]

  • Arduino Analog 3

J3 - GATE Out[edit]

  • A5 used as digital output

J4 - Freq CV In[edit]

  • Arduino Analog 7

J5 - Curve CV In[edit]

  • Arduino Analog 6

J6 - PWM Output[edit]

  • Arduino Digital D10

Card/Card Connectors[edit]

J7 - Jacks Connector[edit]

ER-BEZIER-CV J7 JACKS.PNG

J8 - Pots Connector[edit]

ER-BEZIER-CV J8 POTS.PNG

Other Connectors[edit]

Eurorack Connector[edit]

  • 2x5, uses +12V only

ER-BEZIER-CV J9 EURORACK PWR.PNG

Software[edit]

  • Pot/CV Check - Read Analog inputs, write to monitor
  • ERBEZIERCV_R1 - Original has timer overflows causing hangs
  • ERBEZIERCV_R2 - Fixed timer overflows which were causing hangs, adds GATE output on J3
  • RANDOM_CV_R1 - Random CV generator
    • RV1 = Gate on time
    • RV2 = Gate off time
    • RV3 = Minimum output voltage
    • RV4 = Maximum output voltage
  • RANDOM_CV_R2 - Random CV generator
    • RV1 = Gate on time (20 notes/sec to 4 sec/note)
    • RV2 = Gate on percentage (-100%)
    • RV3 = Minimum output voltage
    • RV4 = Maximum output voltage

Video[edit]

Parts List[edit]

ER-PROTO-CTLS[edit]

ER-PROTO-02-CTLS FRONT REAR CAD.png

  • Install jumpers RV1-RV4 PWR/GND (J10, J11, J13, J14, J16, J17, J19, J20)
    • Solder blobs or tiny jumpers
  • R1-R4 = 1K
  • R7, R9, R15, R17 = 0
  • RV1-RV4 = B100K
  • J3-J6 = PJ398SM
  • J2, J6 reversed on schematics (on ER-MOZZI-DB card)
    • Add jumper J7-4 (signal: J2-T) to J7-8 (signal: J6-T)

ER-MOZZI-DB[edit]

ER-MOZZI-DB FRONT BACK CAD-720px.png

Find Qty Ref Des Part Number Find Qty Ref Des Part Number
1 2 R5, R12 10K 8 7 C2, C3, C5, C6, C11, C13, C14 0.1uF
2 2 R6, R13 100K 9 1 C7 10uF
3 1 R9 470 10 1 C8 47uF
4 1 R14 0 11 1 C15 4.7uF (mind polarity GND up)
5 1 R15 10 12 1 J7 HEADER, 2x8
6 7 D5-D8, D9-D11 BAT41 13 1 J8 HEADER, 2x10
7 1 1K R7 14 1 J9 CONN, IDC, 2X5
15 1 A1 Arduino_Nano_v3.x