4. Electronics production

General Info

Group assignment

• All students need be participate
• Kannai site
  • repo: https://gitlab.fabcloud.org/academany/fabacademy/2021/labs/kannai/site
  • docs/group_assignments/week04.md
  • Markdown
• Document
  • Kannai site
    • detail
    • alternate (week4:)
  • Individual site
    • Add link of group assignment page in your page
    • Document what you learn from group assignment

Assignment

Group assignment:

Note

characterize the design rules for your PCB production process

Individual assignment:

Note

make an in-circuit programmer by milling and stuffing the PCB, test it, then optionally try other PCB processes

TODO: Group assignment

characterize the design rules for your PCB production process

Mill trace width test

• 1/64”(0.397mm)
• 0.010”(0.254mm)
• V-bit (0.1mm 20 deg)

CAM

• Fabmodules

  • Site: http://fabmodules.org/
  • local: Linux PC

• Mods

  • site: https://mods.cba.mit.edu/
  • local: Linux PC

PCB

• FR1
  • Flame Retardant:耐火性
    • ref. FRグレードとは
  • カット基板 銅張積層板 片面 紙フェノール 100×150×1.6mm【NO12】

TODO: Individual assignment

make an in-circuit programmer by milling and stuffing the PCB

• ISP (AVR)
• UPDI (AVR 0,1-series) < this
• JTAG (ARM)

2020 (2Pin)	2021 (3Pin)
serial-UPDI.traces	serial-UPDI.3.traces
serial-UPDI.interior	serial-UPDI.3.interior

• USB-serial

USB-FT230X-Serial	USB-FT230X-UPDI
traces
USB-trim
interior

• Commercial

FTDI Cable	FTDI board

• FTDI drivers

download site
　　 DRIVERS > VCP Drivers > Window: setup executable

How to know your board is functional

• windows

• mac

  $ ls /dev | grep usb
  cu.usbserial-D307RGA1
  tty.usbserial-D307RGA1
  

• Parts

Kannai_inventry_student

Assessment

Electronics Production

• Documented that your board is functional

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Last update: February 25, 2021