Cereal
About the Cereal PCB
Cereal is an open source PCB design by dotcypress, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 27 × 8.8 mm, with 17 components from 14 distinct parts.
Other key parts include the CP2102N-A01-GQFN20. By type, the board carries 6 resistors, 4 capacitors, 3 diodes, 2 connectors, 1 IC and 1 fuse.
It belongs with the usb & debug tools designs in this gallery.
From the project
Compact, CP2102N based, USB-C to UART bridge
Compact, CP2102N based, USB-C to UART bridge.
- USB 2.0 full-speed compatible - Data transfer rates up to 3 Mbaud - Low operating current: 9.5 mA - Royalty-free Virtual COM port drivers
- Order board on Oshpark(🚨 Important: choose 0.8mm thickness board) - Schematics - Gerber files - BOM
- Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0) - MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
Main components on the Cereal
Cereal bill of materials (BOM)
17 components, 14 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CP2102N-A01-GQFN20 | SiliconLabs_QFN-20-1EP_3x3mm_P0.5mm | U1 |
| 1 | CONN_02X03_COUNTER_CLOCKWISE Conn_02x03_Counter_Clockwise | PinHeader_2x03_P2.00mm_Vertical | J1 |
| 1 | USB_C_Plug | USB_C_Plug_HRS_CX60-24S-UNIT | P1 |
| 1 | 350MA 350mA | Fuse_0603_1608Metric | F1 |
| 1 | SP0503BAHT | SOT-143 | D1 |
| 1 | RXT | LED_0603_1608Metric | D2 |
| 1 | TXT | LED_0603_1608Metric | D3 |
| 2 | 100NF 100nF | C_0603_1608Metric | C1, C3 |
| 2 | 10UF 10uF | C_0603_1608Metric | C2, C4 |
| 1 | 1K | R_0603_1608Metric | R1 |
| 1 | 5.1K | R_0603_1608Metric | R2 |
| 1 | 47K | R_0603_1608Metric | R3 |
| 2 | 470R | R_0603_1608Metric | R4, R6 |
| 1 | 22K | R_0603_1608Metric | R5 |
Cereal design files
The KiCad project lives in the dotcypress/cereal repository on GitHub; these links point at the commit this page was built from.
- Layoutcereal.kicad_pcb
- BOMdocs/bom.csv
Cereal: common questions
How big is the Cereal PCB?
The Cereal measures 27 × 8.8 mm, has 2 copper layers and is 0.8 mm thick.
How many components are on the Cereal?
17 components, from 14 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 Cereal design files?
From the dotcypress/cereal repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Cereal design in my own project?
Yes, under the terms of its Apache-2.0 license, which dotcypress chose for the repository.
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