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CHANGELOG.md

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Change Log

TODO

  • 2nd USB out
  • CM5 support?
  • Input protection
  • Bypass USB for MIDI-only controller
  • SMD Debug connectors (angled)
  • Consistent clearance around mounting holes
  • Larger EEPROM

4.0.1-RC - -

4.0.0 - Pedalboard Display and USB - 2024.10.16

Added

  • USB Device in and USB out
  • OSHW Symbol
  • Silkscreen text for reset/boot switches
  • Silkscreen text for MIDI controller inputs
  • Git revision is added to schematics and PCB
  • Pull-up resistors for I2C bus
  • Two more mounting holes (for development)
  • 3D model for JST (Stemma)
  • One more mounting hole in the center
  • User (Test) LED on RP2040
  • EEPROM for storing configuration

Changed

  • Change title to Open Pedalboard Mainboard
  • Use "knowout" text style for better visibility of connectors
  • Swap power symbol to better reflect the terminal connector
  • Replace HiFi Berry by pedalboard-soundcard
  • Upgrade to KiCad 8
  • use smaller XTAL ABM8-272-T3

Removed

  • Fiducials and holes from BOM
  • Direct USB connection to RP2040
  • LEDs are removed (only 5V adapter left) in favour of the pedalboard-display

[3.1.1] - Cost Optimisation: Bug Fixes - 2023-12-05

Changed

  • Increase min. through hole size to 0.3mm

[3.1.0] - Cost Optimisation: Bug Fixes - 2023-12-04

Added

  • Stemma connector for displays
  • Switch for boot mode and reset of RP2040
  • 2 more LED rings for rotary encoders

Changed

  • Increase activity LED resistor to reduce brigtness
  • Stemma compatibility for LED out
  • Smaller JST PH connectors for MIDI IN/OUT

Fixed

  • Fix USB boot mode bug (wrong wiring)
  • Fix CM4 Power LED (invert logic)
  • Use power supply based on CM4 IO Board V5
  • Decrease stencil sizes (10%) for RP2040- and CM4 connector pads

[3.0.1] - Cost optimization: Prototype Production Release - 2023-10-20

Changed

  • Increase slot size to (restriction of PCBway)

[3.0.0] - Cost optimization - 2023-10-19

Changed

  • Use SMD components for MIDI I/O
  • Use SMD actuator buttons
  • Use concrete PSU implemented with SMD components.
  • Use MOS FET instead of diode for reverse polarity protection.
  • Use official solder jumper instead of homegrown PCB fuses.
  • Increase size of PCB and use 5V zone around the edges.
  • Use Connector_JST (XH) for MIDI and LED Ext.
  • Directly interface CM4 (Remove CM4 Nano carrier)
  • Replace the Pico by directly use RP2040

Added

  • Compatibility with the Hammond Manufacturing 1590DD case.
  • Additional analog (EXP 2) input
  • Fidcuials for PnP
  • Alternative screw terminal for power input

[2.1.0] - LED rings - 2023-08-09

Added

Changed

  • Use of SMD Spacers under the foot buttons for improved mechanical stability.
  • The power supply for LEDs from 3.3V to 5V. Allows the use of much larger LED matrices.
  • Therefore, a level shifter from 3.3V to 5V had to be added.

[2.0.0] - 2023-04-24

Added

  • Silkscreen information for connectors to avoid having to refer to the schematics
  • Reverse power protection circuit added to Power input.
  • Power Raspberry Pico from 5V power supply
  • Add internal MIDI connection to free up USB.

Changed

  • BOM: Change LEDs which support 3.3V
  • Swap SW A with SW D to cleanup connections

Fixed

[1.0.2] - 2023-04-04

Fixed

  • Fix the USB connection between Raspberry Pi and Pico

[1.0.1] - 2023-03-27

First manufactured version