2 layers185.4 × 75.9 mm
CowPi mk4b
DocBohn/CowPi_hardware
Hardware designs for Cow Pi educational boards
79 partsCERN-OHL-P-2.0
2 layers185.4 × 75.9 mm
CowPi mk4b natural
DocBohn/CowPi_hardwareHardware designs for Cow Pi educational boards
- Size
- 185.4 × 75.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 80
- Nets
- 63
- Pads
- 309
- Tracks, vias
- 393, 61
- Pours
- 289
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 17 Jul 2023
- Updated
- 13 Jan 2025
Overview
CowPi mk4b natural is an open-source printed circuit board by DocBohn, from the DocBohn/CowPi_hardware repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 2-layer board of 185.4 × 75.9 mm with 80 parts on 63 nets, routed with 393 tracks and 61 vias.
It is built around the TS-1187A-B-A-B, SS-3390S-L0 and X6511FRS-11-C85D30, with the HS96L03W2C03, KT-0603R and PH-00015 among its other parts. Its parts include 48 ICs, 18 resistors, 3 diodes and 1 connector. It belongs with the RP2040 and NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
6
TS-1187A-B-A-B
SMD-4P,5.1x5.1mm-30℃~+85℃ 1.5mm 1.6N 100,000 cycles 12V 5.1mm 5.1mm 50mA Gold No Round Button SPST Surface Mount,Vertical Without Bracket SMD-4P,5.1x5.1mm Tactile Switches ROHSXKB ConnectionTactile Switches
SS-3390S-L0
SMD,7.2x3.5mm-40℃~+85℃ 1.5mm 10000 times 12V 3.5mm 50mA 7.2mm Black DPDT Rectangular Columnar SMD(SMT) Tab Surface Mount,Vertical SMD,7.2x3.5mm Slide Switches ROHSXKB ConnectionSlide Switches
X6511FRS-11-C85D30
SMD,P=2.54mm,卧贴-40℃~+105℃ 1 11P 1x11P 2.54mm 3A 8.5mm Side Square Hole Surface Mount, Right Angle SMD,P=2.54mm,卧贴 Female Headers ROHSXKB ConnectionFemale Headers
HS96L03W2C03
--40℃~+70℃ 0.96 128x64 180cd/m2 21.744x10.864mm I2C Passive (PMOLED) SSD1315 chip White - OLED Display ROHSHSOLED Display
KT-0603R
0603-40℃~+85℃ 1.6mm x 0.8mm square LED 1.8V~2.4V 120° 20mA 300mcd 40mW 615nm~630nm 645nm Discrete Diode Red Water Clear 0603 LED Indication - Discrete ROHSHubei KENTO ElecLED Indication - Discrete
PH-00015
插件,P=2.54mm-40℃~+105℃ 1 1x4P 2.54mm 2.5mm 3A 3mm 4P 6mm Black Pin Header Through Hole 插件,P=2.54mm Pin Headers ROHSLianshengPin Headers
README
README.mdCowPi_hardware
Hardware designs for Cow Pi educational boards
Parts
80| Qty | Value | Footprint | References |
|---|---|---|---|
| 19 | TS-1187A-B-A-B | footprint:SW-SMD_4P-L5.1-W5.1-P3.70-LS6.5-TL-2 | U1, U3, U11, U13, U15, U17, U18, U21, U22, U25, U26, U29, U30, U33, U34, U37 +3 |
| 16 | 1N4001_C2892326 | footprint:SOD-123FL_L2.8-W1.8-LS3.7-RD | U2, U4, U6, U8, U10, U12, U14, U16, U19, U20, U23, U24, U27, U28, U31, U32 |
| 14 | 0805W8F1002T5E | footprint:R0805 | R1, R2, R3, R4, R5, R6, R7, R8, R13, R14, R15, R16, R17, R18 |
| 7 | BSS138_C3015220 | footprint:SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR-1 | U40, U41, U42, U43, U46, U47, U48 |
| 6 | MountingHole | MountingHole:MountingHole_3mm_Pad | H1, H2, H3, H4, H5, H6 |
| 4 | 0805W8F1001T5E | footprint:R0805 | R9, R10, R11, R12 |
| 3 | KT-0603R | footprint:LED0603-RD | LED1, LED2, LED3 |
| 2 | SS-3390S-L0 | footprint:SW-SMD_6P-P2.50_L3.5-W7.2 | U35, U36 |
| 2 | X6511FRS-11-C85D30 | footprint:HDR-SMD_11P-P2.54-H-F-L11.5 | U38, U39 |
| 1 | HS96L03W2C03 | footprint:OLED-TH_L27.8-W27.2-P2.54_C9900033791 | U44 |
| 1 | LOGO | artwork:CowPiLogo-40x20 | G*** |
| 1 | LOGO | artwork:CowPiLogo-14x7 | G*** |
| 1 | LOGO | art:OSHW-mk4b | G*** |
| 1 | PH-00015 | footprint:HDR-TH_4P-P2.54-V-M | J1 |
| 1 | Pico | MCU_RaspberryPi_and_Boards:RPi_Pico_SMD_TH | U45 |
The 79 most common of 80 parts.
More from DocBohn/CowPi_hardware
4- 2 layers185.4 × 74.9 mm
CowPi mk4a
DocBohn/CowPi_hardware
Hardware designs for Cow Pi educational boards
65 partsCERN-OHL-P-2.0 - 2 layers118.1 × 104.1 mm
CowPi mk3c
DocBohn/CowPi_hardware
Hardware designs for Cow Pi educational boards
51 partsCERN-OHL-P-2.0 - 2 layers80 × 54.6 mm
CowPi mk3b
DocBohn/CowPi_hardware
Hardware designs for Cow Pi educational boards
49 partsCERN-OHL-P-2.0
Similar boards
- 2 layers333.9 × 141.1 mm
- 4 layers70 × 50 mm
PD Smart Supply
JaphD/USB-C-PD-Smart-Power-Supply
A compact STM32-controlled USB-C Power Delivery supply providing selectable 5 V, 9 V, 12 V, and 20 V outputs up to 3 A.
73 parts - 2 layers44 × 72 mm
- 2 layers197 × 249.7 mm
- 2 layers42 × 98.1 mm
- 6 layers84 × 98 mm
FujiNet-5200-Rev0
FujiNetWIFI/fujinet-hardware
Schematics and design files for FujiNet hardware
145 parts142 - 4 layers70 × 70 mm
Ai camera
maxlab-io/tokay-lite-pcb
Tokay AI Camera - ESP32 camera development board
161 parts130CERN-OHL-P-2.0 - 4 layers100 × 68 mm
Questions
How big is the CowPi mk4b natural PCB?
It measures 185.4 × 75.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the CowPi mk4b natural use?
80 parts, built around the TS-1187A-B-A-B, SS-3390S-L0, X6511FRS-11-C85D30 and HS96L03W2C03. 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 CowPi mk4b natural KiCad files?
From the DocBohn/CowPi_hardware repository on GitHub, at the commit this page was made from: the board is mark-4/CowPi-mk4b-natural/CowPi-mk4b-natural.kicad_pcb and its schematic mark-3/CowPi-mk3a/CowPi-mk3a.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the CowPi mk4b natural design in my own project?
Its repository publishes it under the CERN-OHL-P-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).