2 layers290.1 × 130 mm
2 layers21 × 52 mm
Nexus 01 schematic
Rohan317685/Nexus-012A pico like devboard with a few more features!
- Size
- 21 × 52 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 42
- Nets
- 55
- Pads
- 209
- Tracks, vias
- 574, 52
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 29 Apr 2026
- Updated
- 3 May 2026
Overview
Nexus 01 schematic is an open-source printed circuit board by Rohan317685, from the Rohan317685/Nexus-01 repository on GitHub, published under the MIT licence. It is a 2-layer board of 21 × 52 mm with 42 parts on 55 nets, routed with 574 tracks and 52 vias.
It is built around the RP2040. Its parts include 18 capacitors, 10 resistors, 4 connectors, 3 ICs and 3 switches. It belongs with the microcontroller boards boards and the RP2040 boards of this library.
Main components
1README
README.md
Nexus 01
A Raspberry Pi Pico-sized devboard!
Key Features • PCB • Credits • License
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Key Features
- Raspberry Pi RP2040 chip pico like devboard
- Multiple LED for visual feedback
- USB-C
- 2-layer PCB designed for cheap prices at bulk
- Panelized design for cost-effective manufacturing
- Multiple buttons for reset, boot and extra inbuilt button
PCB
Designed in KiCad with help of the hackclub blueprint guide and a few more features added!
Schematic
PCB Layers
The 2-layer stackup:
Layer 1 (Main routing layer):
Layer 2 (Mainly GPIO pins):
Front:
Back:
JLCPCB Order and LCSC Order
| Item | Description | Part Number | LCSC Code | Qty |
|---|---|---|---|---|
| Tactile Switch | SPST SMD 3.9x2.9mm | ALPS SKRKAHE020 | C202388 | 10 |
| 3-Pin Header | 1x3P 2.54mm Pitch TH | HX PZ2.54-1x3P ZZ | C32713269 | 5 |
| 20-Pin Header | 1x20P 2.54mm Pitch TH | PH2.54-1X20P-H25 | C42431804 | 5 |
(Had to get 5 because only multiples of 5 were allowed also got 10 buttons because I want to practice smd hand soldering and I will messup) Im buying from LCSC mainly because no companies atleast reliable companies sell those types of exact switches and those headers (I looked at aliexpress, digikey, mouser , rapid electronics and a few more and I decided this has the best price and very good shipping rates!)
Order costs
- Parts Total: $2.25
- Shipping: $5.85
- Handling Fee: $3.00
- PCBA: $39.63
- PCBA shipping: $1.50
- Overall Total: $52.23
Credits
This project uses:
- KiCad
- Onshape for 3D renders
- Hack Club Macondo go join!!!
License
MIT
Readme inspired by @NotARoomba · go follow him now!!! : D
Parts
42| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 0.1uF | Capacitor_SMD:C_0402_1005Metric | C2, C3, C4, C5, C6, C7, C8, C9, C11, C12, C17, C18 |
| 3 | 10K | Resistor_SMD:R_0402_1005Metric | R6, R8, R11 |
| 3 | SW_Push | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW1, SW2, SW3 |
| 2 | 10uF | Capacitor_SMD:C_0402_1005Metric | C13, C14 |
| 2 | 1K | Resistor_SMD:R_0402_1005Metric | R5, R7 |
| 2 | 1uF | Capacitor_SMD:C_0402_1005Metric | C1, C10 |
| 2 | 27 | Resistor_SMD:R_0402_1005Metric | R3, R4 |
| 2 | 33pF | Capacitor_SMD:C_0402_1005Metric | C15, C16 |
| 2 | 5.1K | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | Conn_01x20_Pin | Connector_PinHeader_2.54mm:PinHeader_1x20_P2.54mm_Vertical | J2, J3 |
| 1 | 12 MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 220 | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | Jumper_2_Small_Bridged | Jumper:SolderJumper-2_P1.3mm_Bridged2Bar_Pad1.0x1.5mm | JP1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | LOGO | LOGO | G*** |
| 1 | MCP1700x-330xxTT | Package_TO_SOT_SMD:SOT-23 | U2 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U1 |
| 1 | USB_C_Receptacle_USB2.0_14P | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | W25Q16JVZPIQ TR | Package_SON:Winbond_USON-8-1EP_3x2mm_P0.5mm_EP0.2x1.6mm | U3 |
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Questions
How big is the Nexus 01 schematic PCB?
It measures 21 × 52 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Nexus 01 schematic use?
42 parts, built around the RP2040. 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 Nexus 01 schematic KiCad files?
From the Rohan317685/Nexus-01 repository on GitHub, at the commit this page was made from: the board is src/Nexus 01 schematic.kicad_pcb and its schematic src/Nexus 01 schematic.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Nexus 01 schematic design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).