week04.md

4. Electronics production

nueval

• nueval
  • Login with fablabs.io
  • Student's checklist -> Send Message to Instructor(in English) -> Local evaluation
  • Progress -> Completed (Assignment done)
  • (Local eval) Completed x 2 -> Request to Global Evaluation
  • Global Evaluator will be assigned -> Global Evaluation starts
  • (Global eval) Completed all + Final Presentation -> Graduate!

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Preparation for next week

3D Scanning and Printing
group assignment:

• test the design rules for your 3D printer(s)

individual assignment:

• design and 3D print an object (small, few cm3, limited by printer time)
  that could not be made subtractively
• 3D scan an object (and optionally print it)

FAQ Define cannot be easily made subtractively

Answer: Your model has undercuts), overhangs, nested parts, meshes etc.

Ref. assesment

Preparation

• idea or model for 3D printing
• idea or find object for 3D scan

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Group Assignment

characterize the design rules for your in-house PCB production process
extra credit: send a PCB out to a board house

Group assignment:

Assessment

Characterize the design rules for your in-house PCB production process:
document feeds, speeds, plunge rate, depth of cut (traces and outline) and tooling.

• Feed Rate
  • the distance which the cutting tool during one spindle revolution [ipm]or[mpm]
  • Ref. Difference Between Feed Rate and Cutting Speed in CNC Machining

!!! note In Mods' path to G-code module, cut speed (mm/s) is used to calculate F(Feed rate) in G-code.

Example:  
Mods **path to G-code** module  
    - cut speed 1(mm/s)    
G-code .nc  
    - F60.0000(mm/min)

• characterize the design rules

  • Material
    • FR1
      • Flame Retardant
      • About FR1
    • Size: 100 x150 x1.6mm
    • Cu layer: 35um = 0.035mm
  • endmill
    • shank diameter
      • 1/8" = 3.17 mm
    • traces
      • 1/64" = 0.396748 mm
        • 2FL
      • V-bit 0.2mm 30deg (alternative)
    • outline
      • 1/32" = 0.79375 mm
        • 2FL
      • 0.7 mm (alternative)

• CAM and Machine

CAM |Gcode sender|Machine |PC -- |--- |-- | Fabmodules|(included) |Roland MODELA MDX-15 |Linux in lab Mods |(included) |Roland MODELA MDX-15 |Linux in lab Mods |gSender |Sainsmart Genmitsu PROVerXL|Your PC

• http://fabmodules.org/ -> 404
• Mods

ToDo

• Set up milling environment

  • Tips: Genmitsu PROVerXL 4030

• mill

  • trace width traces, interior

Individual Assignment

make an in-circuit programmer that includes a microcontroller:
extra credit: customize the design
mill and stuff the PCB
test it to verify that it works
extra credit: try other PCB processes

MCU

Family	MCU	Interface	in-circuit programmer(Assignment)
original AVR	ATtiny44ATmega328P	ISP	Fab ISP
AVR	AVR-13216	UPDI	USB-Serial board & Serial-UPDI board
ARM	SAMD11C	JTAG/SWD	FreeDAP board
Xtensa	ESP8266ESP32	Serial	USB-Serial board

!!! Attention FA2022 Trend
SAMD11C -> USB-Serial board
To Programm SAMD11C, need another DAP programmer board
(Not FTDI chip)

AVR-1

in-circuit programmer	Adapter board	Target Board
USB-FT230XS-UPDI		hello.t3216
USB-FT230XS-serial	serial-UPDI
hello.D11C.serial.5V.1.1	serial-UPDI.3

ARM

in-circuit programmer	Adapter board	Target Board
hello.CMSIS-DAP.10.D11C
hello.CMSIS-DAP.4.D11C	hello.SWD.10-4hello.SWD.10-4.1	hello.D11C.echo.1

Xtensa

in-circuit programmer	Adapter board	Target Board
USB-FT230XS-serialhello.D11C.serial.5V.1.1		hello.ESP32-WROOM

Commercial

DAP

ICE	DAP board
Atmel-ICE	MAX32625PICO

Raspberry Pi & Seeeduino Xiao

Ref. FA2022 Embedded Programming Environment

• FA2022 USB-D11C-serial (Pi3 + OpenOCD)

• FA2022 USB-D11C-serial (Pi4 + Ubuntu + edbg + Xiao)

• FA2022 USB-D11C-serial (Ubuntu_Live_USB + edbg + Xiao)

Raspberry Pi4	Seeduino Xiao

USB-Serial

Digikey	SwitchScience	Akizuki
TTL-232R-5V	FTDI USE serial Rev.2	FT234X module{:target="_blank"}

!!! note Mkdocs tips

Open Link target in new page  
``[text](path/to/link){:target="_blank"}``

Image Size (width)    
`![](path/to/image.jpg){width=300}`

Click image to other link    
``[![](path/to/image.jpg)](path/to/link)``

Todo

• Mill in-circuit programmer and Adapter board for AVR-1

in-circuit programmer(This week)	Adapter board(This week)	Target Board (week06/Pre-session)
hello.D11C.serial.5V.1.1	serial-UPDI.3	hello.t3216

• Solder components

• Set up programming environment

  • Raspberry Pi4
    • Install Ubuntu
      • Wifi Setting (lab's and your_house's)
      • SSH
        • no displey
        • no keyboard and mouse
      • install edbg
  • Seeeduino Xiao
    • Arduino IDE
      • Board manager
      • DAPLink sketch

• Burn Bootloader

  • your PC ---(WiFi, SSH)---> Pi4---(USB)---> Xiao---(jumper wiers)---> hello.D11C.serial.5V.1.1_board

• Program 3216 board

  • your PC ---(USB)---> D11C.serial--->UPDI_Adapter--->3216_board
  • Arduino IDE
    • Board manager
    • Example Sketch (Blink)