Display and USB

Please find the artifacts here: https://github.com/pedalboard/pedalboard-hw-site/tree/v4.0.0/latest or in generated_outputs-4.0.0.zip

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

Full Changelog: v3.1.1...v4.0.0

Cost Optimisation with SMD

Please find the artifacts here: https://github.com/pedalboard/pedalboard-hw-site/tree/v3.1.1/latest or in generated_outputs-3.1.1.zip

Added

• Stemma connector for displays (Be aware that there are no external pull-up resistors on the outputs yet!)
• Switch for boot mode and reset of RP2040
• 2 more LED rings for rotary encoders

Changed

• Min. through hole size is 0.3mm
• Increase activity LED resistor to reduce brightness
• 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

Full Changelog: v3.0.1...v3.1.1

Cost Optimization

Please find the artifacts here: https://github.com/pedalboard/pedalboard-hw-site/tree/v3.0.1/v3.0.1 or in generated_outputs-3.0.1.zip

IMPORTANT: The power supply section requires rework. Version 3.0.1 can only be powered with 5V

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
• Increase slot size to (restriction of PCBway)

Added

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

LED rings

Please find the artifacts here: https://github.com/pedalboard/pedalboard-hw-site/tree/v2.1.0 or in generated_outputs-2.1.0.zip

Added

• Pedalboard LED Ring added.

Changed

• Use of SMD Spacers
  under the foot buttons for improved mechanical stabilty.
• 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.

Full Changelog: v2.0.0...v2.1.0

Power Supply

Please find the artifacts here: https://github.com/pedalboard/pedalboard-hw-site/tree/v2.0.0

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
• INCOMPATIBLE: Swap SW A with SW D to cleanup connections

Full Changelog: v1.0.2...v2.0.0

First PCB based prototype

Please find the artifacts here: https://github.com/pedalboard/pedalboard-hw-site/tree/v1.0.2