2 layers364.4 × 167.3 mm
2 layers364.4 × 167.3 mm
Redherring
dcpedit/redherring253Red Herring Keyboard PCB and case files
- Size
- 364.4 × 167.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 221
- Nets
- 137
- Pads
- 1,114
- Tracks, vias
- 2,478, 36
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 14 Mar 2022
- Updated
- 12 May 2024
Overview
Redherring is an open-source printed circuit board by dcpedit, from the dcpedit/redherring repository on GitHub, published under the CC-BY-4.0 licence. It is a 2-layer board of 364.4 × 167.3 mm with 221 parts on 137 nets, routed with 2,478 tracks and 36 vias.
It is built around the ATMEGA32A-PU. Its parts include 94 diodes, 8 resistors, 5 capacitors, 1 IC and 1 connector. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
pcb/README.mdRed Herring PCB
The files here were created with KiCad 6.
Manufacturing
I used JLCPCB.com to get this manufactured. They have a good tutorial on how to generate the Gerber files from KiCad. If the website is not able to calculate the dimensions, you can enter it in manually. Here are the details
- Size: 364.4 mm x 167.2 mm
- Thickness: 1.6 mm FR4
- 2 Layers
Parts
221| Qty | Value | Footprint | References |
|---|---|---|---|
| 92 | D_Small | cftkb:D_DO-35_SOD27_P5.08mm_Horizontal | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +76 |
| 77 | MX-NoLED | MX_Only:MXOnly-1U-Hotswap_w_VIA | MX101, MX102, MX103, MX104, MX105, MX106, MX107, MX108, MX109, MX110, MX111, MX112, MX113, MX114, MX201, MX202 +61 |
| 9 | MX-NoLED | MX_Only:MXOnly-1.25U-Hotswap_w_VIA | MX401.125, MX513, MX601, MX602, MX603, MX604, MX609, MX610, MX611 |
| 3 | 1.5K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R1, R7, R8 |
| 3 | MX-NoLED | MX_Only:MXOnly-2.25U-Hotswap_w_VIA | MX413.225, MX501.225, MX513.225 |
| 2 | 0.1uF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C3, C4 |
| 2 | 22pF | Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm | C1, C2 |
| 2 | 3.6V | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D93, D94 |
| 2 | 5.1K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R2, R5 |
| 2 | 75 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R3, R4 |
| 2 | LED | LED_THT:LED_D3.0mm_Clear | CAPS1, POWER1 |
| 2 | LOGO | redherring:logo | FISH1, FISH2 |
| 2 | MX-NoLED | MX_Only:MXOnly-1.5U-Hotswap_w_VIA | MX301, MX314.150 |
| 2 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | BOOT1, RESET1 |
| 1 | 10K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R6 |
| 1 | 16Mhz | Crystal:Crystal_HC49-4H_Vertical | Y1 |
| 1 | 4.7uF | Capacitor_THT:CP_Radial_D4.0mm_P1.50mm | C5 |
| 1 | 500mA | cftkb:polyfuse_5.1mm | F1 |
| 1 | ATmega32A-PU | Package_DIP:DIP-40_W15.24mm | U1 |
| 1 | AVR-ISP-6 | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | ISP1 |
| 1 | LOGO | redherring:knot_arrow_right | ARROW2 |
| 1 | LOGO | redherring:text_border | LOGO2 |
| 1 | LOGO | redherring:knot_arrow_left | ARROW1 |
| 1 | LOGO | redherring:red_herring_text | LOGO1 |
| 1 | MX-NoLED | MX_Only:MXOnly-2.75U-Hotswap-ReversedStabilizers_w_VIA | MX608 |
| 1 | MX-NoLED | MX_Only:MXOnly-2.25U-Hotswap-ReversedStabilizers_w_VIA | MX605.225 |
| 1 | MX-NoLED | MX_Only:MXOnly-2U-Hotswap-ReversedStabilizers_w_VIA | MX605 |
| 1 | MX-NoLED | MX_Only:MXOnly-2U-Hotswap | MX413 |
| 1 | MX-NoLED | MX_Only:MXOnly-2U-Hotswap_w_VIA | MX215.2 |
| 1 | MX-NoLED | MX_Only:MXOnly-1.75U-Hotswap_w_VIA | MX401 |
| 1 | OLED | Custom_Footprints:SSD1306_OLED | J2 |
| 1 | Rotary_Encoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW3 |
| 1 | USB_C_GCT_USB4085-Type-C | Type-C:USB_C_GCT_USB4085 | USB |
Questions
How big is the Redherring PCB?
It measures 364.4 × 167.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Redherring use?
221 parts, built around the ATMEGA32A-PU. 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 Redherring KiCad files?
From the dcpedit/redherring repository on GitHub, at the commit this page was made from: the board is pcb-hotswap/redherring.kicad_pcb and its schematic pcb-hotswap/redherring.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Redherring design in my own project?
Its repository publishes it under the CC-BY-4.0 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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