Hat
About the Hat
Hat is an open source PCB design by wang-edward, published on GitHub under the MIT license. It is a 4-layer board measuring 65 × 56 mm, with 58 components from 27 distinct parts.
Other key parts include the Oled, CAT24C256, MAX98089ETN_T and TPS7A20xxxDBV. By type, the board carries 30 capacitors, 5 connectors, 5 inductors, 5 resistors, 4 ICs and 2 speakers.
It belongs with the dev boards & breakouts designs in this gallery.
From the project
Le DAW!!!
see firmware/README.md for flashing the rp2350.
Main components on the Hat
Hat bill of materials (BOM)
58 components, 27 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Oled | PinHeader_1x07_P2.54mm_Vertical | U101 |
| 1 | CAT24C256 | SOIC-8_3.9x4.9mm_P1.27mm | U102 |
| 1 | MAX98089ETN_T | MAX98089ETN_T | U201 |
| 1 | TPS7A20xxxDBV | SOT-23-5 | U202 |
| 1 | 12.288MHz | Oscillator_SMD_SeikoEpson_SG210-4Pin_2.5x2.0mm | Y201 |
| 1 | GPIO | PinSocket_2x20_P2.54mm_Vertical | J101 |
| 1 | Uart | PinHeader_1x03_P2.54mm_Vertical | J102 |
| 1 | LineOut | Jack_3.5mm_CUI_SJ-3523-SMT_Horizontal | J201 |
| 1 | LineIn | Jack_3.5mm_CUI_SJ-3523-SMT_Horizontal | J202 |
| 1 | Headphone | CUI_SJ-43514-SMT-TR | J203 |
| 1 | ID_WP | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP101 |
| 1 | SpeakerL | TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | LS201 |
| 1 | SpeakerR | TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | LS202 |
| 1 | MicL | Knowles_LGA-5_3.5x2.65mm | MK201 |
| 1 | MicR | Knowles_LGA-5_3.5x2.65mm | MK202 |
| 1 | 5V | TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP101 |
| 1 | GND | TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP102 |
| 1 | ESDA6V1BC6 | SOT-23-6 | D201 |
| 5 | 600Ohm@100MHz | L_0805_2012Metric | FB201, FB202, FB203, FB204, FB205 |
| 6 | 100nF | C_0805_2012Metric | C101, C202, C204, C210, C212, C216 |
Show 7 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | 10uF | C_0805_2012Metric | C201, C203, C213, C215 |
| 15 | 1uF | C_0805_2012Metric | C205, C206, C207, C208, C209, C217, C218, C220 +7 |
| 4 | 470pF | C_0805_2012Metric | C211, C214, C219, C222 |
| 1 | 2.2uF | C_0805_2012Metric | C224 |
| 2 | 3.9k | R_0805_2012Metric | R101, R102 |
| 2 | 10k | R_0805_2012Metric | R201, R203 |
| 1 | 2.2k | R_0805_2012Metric | R202 |
Hat design files
The KiCad project lives in the wang-edward/ledaw repository on GitHub; these links point at the commit this page was built from.
- Layouthardware/hat/hat.kicad_pcb
- Schematichardware/hat/hat.kicad_sch
Hat: common questions
How big is the Hat?
The Hat measures 65 × 56 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Hat?
58 components, from 27 distinct parts. The full bill of materials is listed on this page.
Where can I download the Hat design files?
From the wang-edward/ledaw repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Hat design in my own project?
Yes, under the terms of its MIT license, which wang-edward chose for the repository.
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