USB Typewriter

Step 3 PARTS LIST

MATERIALS (included with the DIY Kit):

• An assortment of small neodymium magnets.
• Custom laser cut metal tabs ("feather contacts" )
• Blank PCB circuit boards

ELECTRONICS BOM (included with the DIY Kit):

• R1: 68 ohm resistor
• R2: 68 ohm resistor
• R3: 2.2 kohm resistor
• R4:  10 kohm resistor
• USB2: usb B type jack such as FCI 61729-0010BLF
• C1: 22pF capacitor
• C2: 22pF capacitor
• C3  22uF electrolytic capacitor
• Q1: 16MHz crystal oscillator
• C4: .01uF capacitor
• IC1: ATMEGA168, preloaded with USB Typewriter software
• S1 and S2: Omron B3F-1005 tactile switch
• D1 and D2:  3.6V Zener Diode (1N5227B)
• IC1...IC12: M74HC595B1R shift registers (QTY: 12)
• 3 or 4 reed switches to sense shift, space, return carriage, etc. (Meder PN# ORD211/10-15 AT).
• An an Atmega168/328 microcontroller with Arduino bootloader and USB Typewriter software.

SUPPLIES (not included in kit):

• A small roll of gaffer tape.
• Stranded wire, preferably 24 AWG or 22 AWG
• Solder (lead free is the way to be)
• Superglue
• "Simple Green" or similar degreaser/cleaner (for de-gunking your typewriter keys).
• Can of compressed air (optional for cleaning your typewriter).

TOOLS:

• Hot glue gun
• Wire Strippers and clippers
• The usual assortment of tweezers, pliers, screwdrivers, and other hand tools for hackin'
• An old Toothbrush (optional: for scrubbing gunky typewriter parts)
• Dremel rotary tool with a cutting disk, or, if you don't have a Dremel, some med-grit sandpaper.

Comments

[cherub66696]

what is 'C3'?? thanks

[jackzylkin]

I updated the BOM with that value. Thanks!

[cherub66696]

Cool thanks for fast reply, just orderd all the parts, can get everything form the list at mouser.com for under £10. Thank you for great instructable Chris paton

[GUARANIX]

Wooow que interesante propuesta. Pero causa un poco de risa jijiji saludos desde paraguay