2 layers96.5 × 68.6 mm
Backdash v1.5
PhoenixRacing/Sensing2017
Arduino code for tach, speedometer, CVT temp, dash, etc.
23 parts7
2 layers92.7 × 67.3 mm
Backdash
PhoenixRacing/Sensing20177Arduino code for tach, speedometer, CVT temp, dash, etc.
- Size
- 92.7 × 67.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 56
- Pads
- 156
- Tracks, vias
- 100, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 20 Oct 2017
- Updated
- 26 Feb 2020
Overview
Backdash is an open-source printed circuit board by PhoenixRacing, from the PhoenixRacing/Sensing2017 repository on GitHub. It is a 2-layer board of 92.7 × 67.3 mm with 20 parts on 56 nets, routed with 100 tracks and 0 vias.
It is built around the SN74HC14N. Its parts include 4 diodes, 3 resistors, 2 capacitors and 1 transistor.
Main components
1README
README.mdOlin College of Engineering Baja Electrical Subteam Repository
Backbox
Contains the back-end files (.ino) for the various Arduinos responsible for communication and various tasks relating to reading in sensor data and passing it to the dashboard and SD card.
Dashboard
Contains the files (.ino) necessary for communicating between the dashboard Arduino and the backbox, as well as for displaying information to the driver as well as logging the information the SD card.
Dependencies
Contains the libraries necessary to making the code compile on the Arduinos.
Examples
Contains example code for the various components of the electrical subsystem (refer to system architecture diagram); utilize this for reference for skeleton code.
LogFiles
Contains (or will contain) the log files saved on the SD card from the car. Will either be in .csv or.xlsx format.
Outdated Code
Contains archival code from past years that has been ommitted for various reasons (didn't work, redone, unnecessary).
i2cSlaveTest
Will be absorbed underneath Examples directory eventually. Contains example code for a test for communication between two Arduinos over i2c.
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | Conn_01x30_Female | TestBaja:arduino_nano | NANO1, NANO2, NANO3 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | 1N4007 | Diode_THT:D_DO-41_SOD81_P7.62mm_Horizontal | D1, D2 |
| 1 | 1N4148 | Diode_THT:D_T-1_P5.08mm_Horizontal | D3 |
| 1 | 1N4738 | Diode_THT:D_DO-41_SOD81_P7.62mm_Horizontal | D4 |
| 1 | 2200pF | Capacitor_THT:C_Rect_L11.0mm_W3.5mm_P10.00mm_MKT | C1 |
| 1 | 2N3904 | Package_TO_SOT_THT:TO-92_Inline | Q1 |
| 1 | 39nF | Capacitor_THT:C_Rect_L7.0mm_W3.5mm_P5.00mm | C2 |
| 1 | 4.7k | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | Conn_01x05_Female | TestBaja:Buck_module | BUCK1 |
| 1 | Conn_01x16_Female | TestBaja:CAN_Module | CAN1 |
| 1 | DNP | Resistor_SMD:R_0805_2012Metric | DNP1 |
| 1 | SN74HC14N | Package_DIP:DIP-14_W7.62mm | DIP1 |
| 1 | Vin + | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | In1 |
| 1 | Vin- | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | In2 |
The 19 most common of 20 parts.
Questions
How big is the Backdash PCB?
It measures 92.7 × 67.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Backdash use?
20 parts, built around the SN74HC14N. 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 Backdash KiCad files?
From the PhoenixRacing/Sensing2017 repository on GitHub, at the commit this page was made from: the board is KicadFiles/BackDash/backdash/backdash.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Backdash design in my own project?
Its repository states no licence, so its author keeps all rights: ask PhoenixRacing before reusing the design.
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