2 layers22 × 25 mm
2 layers80 × 70 mm
Steeringwheel pcb
- Size
- 80 × 70 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 19
- Nets
- 56
- Pads
- 106
- Tracks, vias
- 155, 77
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 12 Apr 2025
- Updated
- 22 Apr 2025
Overview
Ratt is an open-source printed circuit board by LuleaFormulaStudent, from the LuleaFormulaStudent/SteeringWheel repository on GitHub. It is a 2-layer board of 80 × 70 mm with 19 parts on 56 nets, routed with 155 tracks and 77 vias.
It is built around the MCP2551-I/P and 74HC4067D. Its parts include 4 connectors, 3 switches, 2 capacitors and 1 IC. It belongs with the ESP32 boards of this library.
Main components
2
MCP2551-I/P
PDIP-8-40℃~+85℃ 1Mbps 365uA 4.5V~5.5V 75mA CAN Transceiver PDIP-8 CAN Transceivers ROHSMicrochip TechnologyCAN Transceivers
74HC4067D
SOIC-24-300mil-40℃~+125℃ 1 100MHz 16:1 26ns 29ns 2V~10V 80Ω 9ns Bidirectional analog channel SOIC-24-300mil Analog Switches, Multiplexers ROHSNexperiaAnalog Switches, Multiplexers
Parts
19| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | C | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2 |
| 2 | SW_Coded_SH-7040 | Connector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_Vertical | SW2, SW3 |
| 2 | SW_SPST | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | BoostKnapp1, RadioKnapp1 |
| 1 | 4518 | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | TV-RUT1 |
| 1 | 74HC4067 | Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm | U3 |
| 1 | Conn_01x19 | Connector_PinSocket_2.54mm:PinSocket_1x19_P2.54mm_Vertical | J3 |
| 1 | DriveMode(WE-42852752) | Button_Switch_THT:Nidec_Copal_SH-7010C | SW1 |
| 1 | ESP32 Connector | Connector_PinSocket_2.54mm:PinSocket_1x19_P2.54mm_Vertical | J4 |
| 1 | LOGO | Egna:lulealogga | G*** |
| 1 | LOGO | Egna:aislerlogga | G*** |
| 1 | MCP2551 | Egna:MCP2551 | J2 |
| 1 | Screw_Terminal_01x04 | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J7 |
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Questions
How big is the Ratt PCB?
It measures 80 × 70 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Ratt use?
19 parts, built around the MCP2551-I/P and 74HC4067D. 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 Ratt KiCad files?
From the LuleaFormulaStudent/SteeringWheel repository on GitHub, at the commit this page was made from: the board is Ratt.kicad_pcb and its schematic Ratt.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Ratt design in my own project?
Its repository states no licence, so its author keeps all rights: ask LuleaFormulaStudent before reusing the design.