4 layers58 × 77.4 mm
AWG
MatthiasElectronic/AWG_DHO8-900
artificial waveform generator / function generator for DHO800 and DHO900 series (AWG/AFG)
208 parts221CERN-OHL-W-2.0
2 layers67.6 × 40.6 mm
Robal
nietaki/robal1Debugging expansion for the LABOR modular prototyping board by Moritz Klein and Erica Shnths
- Size
- 67.6 × 40.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 56
- Nets
- 33
- Pads
- 172
- Tracks, vias
- 229, 58
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 9 Dec 2024
- Updated
- 12 May 2025
Overview
Robal is an open-source printed circuit board by nietaki, from the nietaki/robal repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 67.6 × 40.6 mm with 56 parts on 33 nets, routed with 229 tracks and 58 vias.
It is built around the NE5532DR-MS. Its parts include 24 resistors, 8 capacitors, 8 connectors, 4 diodes and 2 ICs.
Main components
1README
README.mdRobal
License
[robal](https://github.com/nietaki/robal](https://github.com/nietaki/robal) is licensed under CC BY-SA 4.0
Parts
56| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 1k | Resistor_SMD:R_0603_1608Metric | R3, R4, R5, R8, R9, R10, R13, R14, R15, R18, R19, R20 |
| 8 | 100k | Resistor_SMD:R_0603_1608Metric | R2, R7, R12, R17, R21, R22, R23, R24 |
| 4 | 100n | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4 |
| 4 | 10u | Capacitor_SMD:C_0805_2012Metric | C5, C6, C7, C8 |
| 4 | 1M | Resistor_SMD:R_0603_1608Metric | R1, R6, R11, R16 |
| 4 | Conn_02x02_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x02_P2.54mm_Vertical | J5, J6, J7, J8 |
| 4 | LED_Dual_AKAK | robal_footprints:E6C1209RVGC2UDA | D1, D2, D3, D4 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.5mm_Pad_TopBottom | H1, H2, H3, H4 |
| 4 | TestPoint | TestPoint:TestPoint_Loop_D3.50mm_Drill1.4mm_Beaded | TP1, TP2, TP3, TP4 |
| 2 | Conn_01x08 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J1, J2 |
| 2 | NE5532DR | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1, U2 |
| 1 | Conn_02x05_Odd_Even | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J4 |
| 1 | Conn_02x08_Odd_Even | Connector_IDC:IDC-Header_2x08_P2.54mm_Vertical | J3 |
| 1 | audio ring | TestPoint:TestPoint_Loop_D3.50mm_Drill1.4mm_Beaded | TP6 |
| 1 | audio tip | TestPoint:TestPoint_Loop_D3.50mm_Drill1.4mm_Beaded | TP5 |
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Questions
How big is the Robal PCB?
It measures 67.6 × 40.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Robal use?
56 parts, built around the NE5532DR-MS. 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 Robal KiCad files?
From the nietaki/robal repository on GitHub, at the commit this page was made from: the board is kicad_projects/robal/robal.kicad_pcb and its schematic kicad_projects/robal/robal.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Robal design in my own project?
Its repository publishes it under the CC-BY-SA-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).