2 layers92.7 × 67.3 mm
2 layers96.5 × 68.6 mm
Backdash v1.5
PhoenixRacing/Sensing20177Arduino code for tach, speedometer, CVT temp, dash, etc.
- Size
- 96.5 × 68.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 23
- Nets
- 103
- Pads
- 163
- Tracks, vias
- 136, 190
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 20 Oct 2017
- Updated
- 26 Feb 2020
Overview
Backdash v1.5 is an open-source printed circuit board by PhoenixRacing, from the PhoenixRacing/Sensing2017 repository on GitHub. It is a 2-layer board of 96.5 × 68.6 mm with 23 parts on 103 nets, routed with 136 tracks and 190 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Outdated Code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
23| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | Conn_01x30_Female | TestBaja:arduino_nano | NANO1 // Tach, NANO2 // Wheel, NANO3 // CVT |
| 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_01x03_Female | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | Wheel1 |
| 1 | Conn_01x04_Female | TestBaja:DC_Connector | DC1 |
| 1 | Conn_01x04_Female | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | CVT1 |
| 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 | LOGO | TestBaja:Baja_Logo_Backdash | G*** |
| 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 |
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Questions
How big is the Backdash v1.5 PCB?
It measures 96.5 × 68.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Backdash v1.5 use?
23 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 v1.5 KiCad files?
From the PhoenixRacing/Sensing2017 repository on GitHub, at the commit this page was made from: the board is KicadFiles/Backdash_v1.5/backdash/backdash_v1.5.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Backdash v1.5 design in my own project?
Its repository states no licence, so its author keeps all rights: ask PhoenixRacing before reusing the design.