HardLabs

750-THR-Earthtyper

meepodeep·750-THR-Earthtyper·750-THR-Earthtyper/750-THR-Earthtyper.kicad_pcb

750-THR-Earthtyper PCB layout, top view — open source NXP board by meepodeep

About the 750-THR-Earthtyper PCB

750-THR-Earthtyper is an open source NXP PCB design by meepodeep, published on GitHub. It is a 2-layer board measuring 307.9 × 123.2 mm, with 165 components from 7 distinct parts.

Its main chip is the TEENSY2.0, from the NXP family. By type, the board carries 82 relays, 82 diodes and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

The 1000-THR Earthmover shrunk down to a keyboard size!

4. Mask, engrave and cut the rear plate out of acrylic benjamin back.svg

6. mount the keyboard pcb with m2 screws

8. resolder the wire together so it doesnt have to coil and the usb c can still reach the outside

10. Use whatever method of securing the usb c cable to the pcb so that it aligns with the hole in the case

11. plug the mini b cable into the teensy.

12. mount the front peice with m3 screws while having the back plate on

750-THR-Earthtyper, from the project README
From the project README

Main components on the 750-THR-Earthtyper

TEENSY2.0

750-THR-Earthtyper bill of materials (BOM)

165 components, 7 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TEENSY2.0
U1
76
KEYSW
K1, K2, K3, K4, K5, K6, K7, K8 +68
1
KEYSW
K29
2
KEYSW
K31, K44
1
KEYSW
K46
2
KEYSW
K58, K60
82
D
D1, D2, D3, D4, D5, D6, D7, D8 +74

750-THR-Earthtyper design files

The KiCad project lives in the meepodeep/750-THR-Earthtyper repository on GitHub; these links point at the commit this page was built from.

750-THR-Earthtyper: common questions

What microcontroller does the 750-THR-Earthtyper use?

The 750-THR-Earthtyper is built around the TEENSY2.0, from the NXP family.

How big is the 750-THR-Earthtyper PCB?

The 750-THR-Earthtyper measures 307.9 × 123.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 750-THR-Earthtyper?

165 components, from 7 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the 750-THR-Earthtyper design files?

From the meepodeep/750-THR-Earthtyper repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the 750-THR-Earthtyper design in my own project?

The repository has no license, so all rights stay with meepodeep. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the 750-THR-Earthtyper without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug NXP firmware against it before you order a PCB.

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