ER-MIDI-CV4-02

Features

• Eurorack 6HP, 3U module
• Adapted from HAGIWO's MIDI to CV module
  • Translate from Japanese to English using browser
  • Removes Digital Outputs
  • Has 4 Analog Outputs instead of 2
• Based also on SYNTH-MIDI-CV4-01
• Arduino Pro Mini
  • 16 MHz
  • 5V
• MIDI In
  • TRS Type A jack MIDI In
  • USB MIDI In
• (4) 0-5V Analog CV outs
  • MCP4822 12-bit D/A - SPI Interface
    • MCP4822 Datasheet
• GATE output
• CLK output
• Standard EuroRack 16 pin power header

Arduino Pins

• Analog 1 - Speed Adjust POT
• A4 = SDA
• A5 = SCL
• D8 = LDAC1
• D9 = LDAC2
• D13 = SPI CSK
• D11 = SPI MOSI
• D10 = SLAVE SELECT

Connectors

• J1 = Eurorack Power
• J2 = CVs, GATE, CLK (to/from Controls card)
• J3 = I2C
• J4 = MIDI (to/from Controls card)
• J5 = MIDI into RX ( Remove to use MIDI from Controls card

Application

• Use with ER-VCO-03 to control pitch and Mod
  • CV_1 = V/OCT
  • CV_2 = MOD
• Use with ER-VCA2-01 to control amplitude

Assembly Sheet

ER-MIDI-CV4-02 Rev 1 Assembly Sheet