2 layers89 × 100 mm
Hub16
joshajohnson/Hub16
A macro pad with 16 keys, two rotary encoders, a four port USB hub, and plenty of LEDs!
132 parts388
2 layers59.7 × 40.6 mm
CT-84
kknownn/CT-84Our first keyboard PCB from Crew-T
- Size
- 59.7 × 40.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 24
- Nets
- 44
- Pads
- 144
- Tracks, vias
- 155, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 28 May 2021
- Updated
- 28 May 2021
Overview
CT-84 is an open-source printed circuit board by kknownn, from the kknownn/CT-84 repository on GitHub, published under the Apache-2.0 licence. It is a 2-layer board of 59.7 × 40.6 mm with 24 parts on 44 nets, routed with 155 tracks and 0 vias.
It is built around the ATMEGA32U4. Its parts include 8 capacitors, 5 switches, 4 resistors, 4 diodes and 1 IC. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdCT-84
Our first keyboard PCB from Crew-T
Parts
24| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 0.1u | Capacitor_SMD:C_0805_2012Metric | C3, C4, C5, C6 |
| 4 | D | keyboard_parts:D_SOD123_axial | D1, D2, D3, D4 |
| 4 | KEYSW | keebs:Mx_Alps_100 | K1, K2, K3, K4 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2 |
| 2 | 22 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R4 |
| 2 | 22p | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 1 | 1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8 |
| 1 | 4.7u | Capacitor_SMD:C_0805_2012Metric | C7 |
| 1 | ATMEGA32U4 | Housings_QFP:TQFP-44_10x10mm_Pitch0.8mm | U1 |
| 1 | SW_PUSH | Button_Switch_SMD:SW_SPST_TL3342 | SW1 |
| 1 | USB_C_Plug_USB2.0 | Connector_USB:USB_C_Plug_Molex_105444 | P1 |
| 1 | XTAL_GND | Crystal:Crystal_SMD_SeikoEpson_FA238-4Pin_3.2x2.5mm | X1 |
Questions
How big is the CT-84 PCB?
It measures 59.7 × 40.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the CT-84 use?
24 parts, built around the ATMEGA32U4. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the CT-84 KiCad files?
From the kknownn/CT-84 repository on GitHub, at the commit this page was made from: the board is CT-84.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the CT-84 design in my own project?
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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