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Bill of materials for Decktility

I ordered many of the components from AliExpress. Make sure to double-check that you're ordering the correct item.

  • BigTreeTech Pad 5
  • Raspberry Pi CM4
  • Arduino Nano V3.0
  • 5 V 3 A step down converter like this
  • USB-C 2S battery charger/BMS like this
  • BlueTooth mini keyboard like this (needs modding, see build guide)
  • 2x 18650 battery. They must be capable of charging with a current of at least 1.5 A. For example: US18650VTC6
  • 4x Spring steel 18650 leaf spring battery contact like this this
  • 50x M2 heat insert nut (2 mm high, 3.2 mm wide) (you don't need 50, but you might need more than a single set in case of a failed print)
  • 10x M1.4 2mm self-tapping screw (it's best to get a set with various sizes, because printing tolerances vary)
  • A set of watch maker screws of various sizes (M1.0, M1.2, M1.4, etc.)
  • 4x M2.5 4mm (button or flat head) for Pad 5 mounting (there are cheap sets with M2-M2.5-M3 screws out there)
  • 2006 5V fan (20 x 6 mm)
  • Electrical wire: 24 AWG for power and 28 AWG for silicon. (silicon, not plastic)
  • SS12F15 mini slide switch
  • Resistors: 1x 2.2M Ohm, 1x 3.9M Ohm
  • Electronic switch control board (see below)
  • Experiment PCB
  • (optional) Elastic jewelry wire, 1mm, transparent ('optical fiber' to wire USB charger LEDs to case)
  • (optional) JST-SH male and female plugs (for easy detaching I2C wires during development)
  • A soldering iron with a long and thin tip to reach the bottom of the Pi header on the PCB. I used a TS100 C1 tip.
  • Other soldering gear, 3D printer (or use a 3D printer service online).

Electronic switch control board

I used a module that you can find on AliExpress/Amazon. The module itself is too large, so it needed to be transplanted onto an experiment board. You could either buy such a module and transplant the components, or you can buy the components individually.

Check the assembly guide for the schematics.