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PSU Baseboard / Bus Head

This is a circuit & mount for a small power supply and embedded system bus-head for the uart-clocked bus.

routed schem

What's Up:

  • uses the module
  • breaks out 24V 350W & UCBus on one 2x15 IDC
  • second 24V 40W UCBus channel available
  • RPI mount available
    • RPI UART lines plumbed
    • 5V 2A regulator footprint to power RPI from 24V PSU
    • I2C Display Module footprint available
    • BFCs & Filtering available

Firmware

I use this board mostly as the 'coordinator' for modular motion systems, firmware is here and uses platform.io to run, see this guide to build and load code.

Shorthand BOM

  • 7x 470R / 120R / LED Choice R
  • 3x 1k
  • 2x 4k7
  • 2x 10k
  • 4x 1uF
  • 4x 10uF
  • 8x LED,
  • TVS Diode
  • 2x Hi-Side Gate DRV MIC5014
  • 3x NFET TPW4R008NH
  • Optional I2C Display
  • Optional 4x Pushbutton
  • Optional Pololu D36V50F5 Regulator (PSU -> RPI)
  • Optional RPI