HardLabs

Bizcard

tjhorner·bizcard·pcb/bizcard.kicad_pcb

Bizcard PCB layout, top view — open source RP2040/RP2350 board by tjhorner
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About the Bizcard PCB

Bizcard is an open source RP2040/RP2350 PCB design by tjhorner, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 88.9 × 50.8 mm, with 44 components from 20 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the AMS1117-3.3 and W25Q128JVS. By type, the board carries 20 capacitors, 9 resistors, 5 diodes, 3 ICs, 3 connectors and 2 switches.

From the project

Documentation and source files for my functional PCB business card

Hiya! Welcome to the documentation for my... business card? Yep, my business card. Which is also a PCB. Chances are you received one from me and are curious enough to scan the QR code on the back.

In these docs, you'll find information on the specs, how to flash it, which peripherals are onboard, how to do cool stuff with it, and (if you received a bare board) where to source the parts you'll need to assemble it. You'll also find the source KiCad project files for the schematic and board, as well as the source for the firmware that is installed by default. These are open source under…

Bizcard, from the project README
From the project README

Main components on the Bizcard

AMS1117-3.3W25Q128JVSRP2040

Bizcard bill of materials (BOM)

44 components, 20 distinct parts.

QtyPartRefs
1
AMS1117-3.3
U1
1
W25Q128JVS
U2
1
RP2040
U3
1
12MHz
Y1
1
Conn_01x12_Female
J1
1
USB_C_ReceptacleUSB2.0
J2
1
Conn_ARM_JTAG_SWD_10
J3
1
Buzzer
BZ1
2
SW_Push
SW1, SW2
4
WS2812B
D1, D2, D3, D4
1
LED
D5
2
10u
C1, C3
14
100n
C2, C6, C7, C9, C11, C12, C13, C14 +6
2
27p
C4, C5
2
1u
C8, C10
2
1k
R1, R3
2
10k
R2, R8
2
27
R4, R5
2
5.1k
R6, R7
1
470
R9

Bizcard design files

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

Bizcard: common questions

What microcontroller does the Bizcard use?

The Bizcard is built around the RP2040, from the RP2040/RP2350 family.

How big is the Bizcard PCB?

The Bizcard measures 88.9 × 50.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bizcard?

44 components, from 20 distinct parts. The full bill of materials is listed on this page.

Where can I download the Bizcard design files?

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

Can I use the Bizcard design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which tjhorner chose for the repository.

Can I test firmware for the Bizcard without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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