HardLabs

Td40

NLTD2010·td40·PCB/td!40.kicad_pcb

Td40 PCB layout, top view — open source Nordic nRF board by NLTD2010

About the Td40 PCB

Td40 is an open source Nordic nRF PCB design by NLTD2010, published on GitHub under the MIT license. It is a 2-layer board measuring 280.1 × 81.3 mm, with 142 components from 15 distinct parts.

Its main chip is the nice_nano, from the Nordic nRF family. By type, the board carries 46 diodes, 45 relays, 45 inductors, 2 switches, 1 IC and 1 battery holder.

It belongs with the keyboards, displays & leds and iot & wireless designs in this gallery.

From the project

A 40% hotswappable keyboard, with a knob, display and RGB per-key. Made with love from me

💡 Tip: Check out the repository for firmware, build guide, and more!

Td40, from the project README
From the project README

Main components on the Td40

nice_nano

Td40 bill of materials (BOM)

142 components, 15 distinct parts.

QtyPartRefs
1
nice_nano
U1
1
Battery_Cell
BT1
1
nice!view
Display1
36
KEYSW
K1, K2, K3, K4, K5, K6, K7, K8 +28
2
KEYSW
K12, K25
4
KEYSW
K13, K37, K38, K39
1
KEYSW
K24
1
KEYSW
K40
1
KEYSW
K41
1
SW_PUSH
RSW1
1
RotaryEncoder_Switch
SW1
1
SW23
SW23
45
~
D1, D2, D3, D4, D5, D6, D7, D8 +37
1
D
D46
45
SK6812MINI
L1, L2, L3, L4, L5, L6, L7, L8 +37

Td40 design files

The KiCad project lives in the NLTD2010/td40 repository on GitHub; these links point at the commit this page was built from.

Td40: common questions

What microcontroller does the Td40 use?

The Td40 is built around the nice_nano, from the Nordic nRF family.

How big is the Td40 PCB?

The Td40 measures 280.1 × 81.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Td40?

142 components, from 15 distinct parts. The full bill of materials is listed on this page.

Where can I download the Td40 design files?

From the NLTD2010/td40 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Td40 design in my own project?

Yes, under the terms of its MIT license, which NLTD2010 chose for the repository.

Can I test firmware for the Td40 without the hardware?

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

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