Dabao
About the Dabao PCB
Dabao is an open source PCB design by baochip, published on GitHub under the CERN-OHL-W-2.0 license. It is a 2-layer board measuring 21 × 41 mm, with 39 components from 21 distinct parts.
Other key parts include the BAOCHIP1X, Baochip, MT3406 and EMS4000RSW. By type, the board carries 16 capacitors, 11 resistors, 5 ICs, 2 switches, 2 inductors and 1 crystal.
It belongs with the dev boards & breakouts designs in this gallery.
From the project
Dabao eval board hardware
This repo contains the Kicad design files for the Dabao evaluation board for the Baochip-1x.
Main components on the Dabao
Dabao bill of materials (BOM)
39 components, 21 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BAOCHIP1X baochip1x | WLCSP-71_9x8_4.062x3.762mm | U1 |
| 1 | Baochip | Dabao_Vendor_Substrate | U3 |
| 2 | MT3406 | SOT-23-5 | U4, U6 |
| 1 | EMS4000RSW | QFN-10_1.4x1.8_Pitch0.4mm | U5 |
| 1 | 48.000MHZ 48.000MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y2 |
| 1 | USB_C_RECEPTACLE_USB2.0_16P USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 2 | TS-1187A-B-B-B SW_Push | SW_Push_1P1T_XKB_TS-1187A | SW1, SW2 |
| 1 | SD103AWS 1N5819WS | D_SOD-323 | D1 |
| 2 | C281115 2.2uH MGFL2012F2R2MT-LF | L_0805_2012Metric | L1, L2 |
| 2 | C56903 33pF C0G | C_0201_0603Metric | C1, C10 |
| 2 | CL05A105KA5NQNC 1.0uF, 10V, X5R | C_0201_0603Metric | C2, C11 |
| 5 | CL05B104KO5NNNC 0.1uF, 10V, X5R | C_0201_0603Metric | C4, C7, C8, C13, C18 |
| 3 | GRM033R60J225ME47D 2.2uF, 6.3V, X5R | C_0201_0603Metric | C5, C9, C15 |
| 4 | CL10A106MA8NRNC 10uF, 25V, X5R | C_0603_1608Metric | C12, C14, C16, C17 |
| 3 | ANY 10k, 1% | R_0201_0603Metric | R1, R4, R10 |
| 1 | ANY 100 ohm | R_0402_1005Metric | R2 |
| 1 | ANY 4.7M | R_0402_1005Metric | R3 |
| 2 | ANY 5.1k, 1% | R_0402_1005Metric | R5, R11 |
| 2 | ANY 100k, 1% | R_0201_0603Metric | R6, R8 |
| 1 | ANY 453k, 1% | R_0201_0603Metric | R7 |
Show 1 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ANY 43.2k, 1% | R_0201_0603Metric | R9 |
Dabao design files
The KiCad project lives in the baochip/dabao repository on GitHub; these links point at the commit this page was built from.
- Layoutdabao_v3c.kicad_pcb
- Schematicdabao_v3c.kicad_sch
- BOMproduction/bom.csv
Dabao: common questions
How big is the Dabao PCB?
The Dabao measures 21 × 41 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Dabao?
39 components, from 21 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Dabao design files?
From the baochip/dabao repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Dabao design in my own project?
Yes, under the terms of its CERN-OHL-W-2.0 license, which baochip chose for the repository.
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