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Electronics Module Boards Library eXPerience

Various modular-designed electronics boards created for home learning projects.

overview

These MOdule Boards (MOBs) are useful for:

  • doing experiences
  • testing specific components functions
  • prototyping complex projects by modular approach
  • expanding and interfacing components functions
  • having fun building simple circuits

Contents of the MOBs library

MOBs operating at both 3V3 and 5V

MOBs operating only at 5V

MOBs for audio experiences

Specifications

Schematics and PCB layouts are designed with ExpressPCB free CAD software.

MOBs naming convention

  • mob (module board)
  • mob-psu (power supply unit)
  • mob-io (input/output unit)
  • mob-if (interface unit)
  • mob-fn (function controller unit)
  • mob-mcu (micro controller unit)

PCB Specifications

  • PCB layout are designed on paperboard sizes: 2x8cm, 5x7cm, 7x10cm
  • Each MOB is designed with the power connector (PWR) with the positive pin on left, a bulk capacitor (C) and a power-on led indicator (DL) (yes, I have surplus of components!)
  • Activity leds are:
    • 3mm green led for power status indicator
    • 3/5mm green led for normal activity indicator
    • 3/5mm yellow led for warning status indicator
    • 3/5mm red led for error, fault or wrong status indicator
    • 3/5mm blue led for request of manual intervent
  • Led current limiter resistors: R=1Kohm
  • Digital line pull-up resistors: R=10Kohm
  • IC decoupling capacitors: C=100nF
  • Board bulk capacitors: C=10uF

ExpressPCB Custom Components Library

  • ExpressPCB components used for MOBs are customized and named as "MOB_name_size"
  • Paperboard layout templates are also saved as ExpressPCB custom components and named as "MOB__Paperboardsize"
  • ExpressPCB custom components size units, unless otherwise specified, are 1/10 of inches
  • PCB layout traces are 0.05", pads are 0,065"

Changes

See file CHANGES for the project resources change log

Future Plans for the MOBs Library

  • Add more MOBs!

About

Author : Alessandro Fraschetti (mail: gos95@gommagomma.net)

License

This eXPerience is licensed under the MIT license