2 layers100 × 67.1 mm
2 layers99.3 × 99.9 mm
The connector used is a Delphi Sicma 39 pin
- Size
- 99.3 × 99.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 25
- Nets
- 85
- Pads
- 189
- Tracks, vias
- 350, 34
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 9 May 2023
- Updated
- 16 Jun 2024
Overview
Shield is an open-source printed circuit board by speeduino, from the speeduino/Hardware-Extra repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 99.3 × 99.9 mm with 25 parts on 85 nets, routed with 350 tracks and 34 vias.
It is built around the MAX9926UAEE/V+T. Its parts include 6 resistors, 5 capacitors, 3 connectors, 2 switches and 1 IC.
Main components
1README
V0.4 Shield/README.md
[
A low cost, DIY friendly Engine Management System (ECU) based on the Arduino framework
Speeduino
The Speeduino project is a flexible, fully featured Engine Management Systems (EMS aka ECU) based on the low cost and open source Arduino platform. It provides the hardware, firmware and software components that make up an engine management system, all provided under open licenses. With over 1000 installations, Speeduino has matured into a product that meets the needs of the hobbyist and enthusiast community without driving prices to the levels of traditional aftermarket ECUs.
Overview
This board is a shield designed to add an automotive connector to the v0.4 series of Speeduino ECUs. It also includes a VR conditioner on board and allows for 12v Hall effect signals (Such as on some GM engines) to be used directly.
The connector used is a Delphi Sicma 39 pin
License
These designs are release under the TAPR Open Hardware License v1.0.
Support
In addition the manual referenced above, Speeduino has a large and very vibrant community of people to help out with your setup or any questions you might add.
- Speeduino Forum
- Discord [blocked]
Contributors
This project exists thanks to all the people who contribute, both in terms of code and testing provided. If you'd like to get involved, please have a read through Contributing and then jump on Discord to discuss things further
Parts
25| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 10k | Resistor_SMD:R_0805_2012Metric | R3, R4, R5, R6 |
| 2 | 1k | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | 1nF | Capacitor_SMD:C_0805_2012Metric | C4, C6 |
| 2 | Conn_01x02_Female | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP4, JP5 |
| 2 | Conn_01x03_Female | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP2, JP3 |
| 2 | Pololu_Breakout_A4988 | Module:Pololu_Breakout-16_15.2x20.3mm | A1, A2 |
| 2 | SW_DPDT_x2 | Misc:AYZ0202AGRLC | SW1, SW2 |
| 1 | 0.01uF | Capacitor_SMD:C_0805_2012Metric | C5 |
| 1 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C7 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C8 |
| 1 | Conn_02x04_Counter_Clockwise | Package_DIP:DIP-8_W7.62mm | J3 |
| 1 | Conn_02x20_Counter_Clockwise | Connector_IDC:IDC-Header_2x20_P2.54mm_Vertical | J2 |
| 1 | Delphi_Sicma_39 | Connector_Automotive:Delphi_Sicma_39_Black | J1 |
| 1 | LOGO | Misc:Speeduino logo_sml | G*** |
| 1 | MAX9926UAEE_V+ | Package_SO:QSOP-16_3.9x4.9mm_P0.635mm | IC1 |
| 1 | Q_DUAL_NMOS_S1G1D2S2G2D1 | Package_TO_SOT_SMD:SOT-363_SC-70-6 | Q1 |
Questions
How big is the Shield PCB?
It measures 99.3 × 99.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Shield use?
25 parts, built around the MAX9926UAEE/V+T. 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 Shield KiCad files?
From the speeduino/Hardware-Extra repository on GitHub, at the commit this page was made from: the board is V0.4 Shield/Shield.kicad_pcb and its schematic Speedy MAP/Hardware/MAP Sensors.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Shield design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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