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docs: create boards/V02
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title: V02
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description:
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published: true
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date: 2021-01-02T07:18:46.794Z
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tags:
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editor: markdown
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dateCreated: 2021-01-02T07:18:46.794Z
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---
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Overview
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--------
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The second speeduino shield board is intended to be much more usable and feature complete than the original v0.1 prototype. To this end, I expect it to have the following features:
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- 4 fully protected High impedance injector channels (Each with a LED indicator)
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- 4 ignition outputs (for driving igniters or logic level coils)
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- Inputs for CLT, IAT, O2 and TPS
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- Optional onboard MAP sensor
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- 2 medium current generic PWM output (3A - Eg Idle control)
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- 2 low current digital outputs (Max 40mA)
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- Battery voltage monitoring
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- 2 speed sensing inputs (RPM and cam)
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` * Hall or optical input by default or;`
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` * Optional plug in board for VR sensors (Likely to be `[`http://jbperf.com/dual_VR/v2_1.html`](http://jbperf.com/dual_VR/v2_1.html)`)`
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- All I/O to be through screw terminals. Will look at doing an alternative version of the board with a connector if there is interest
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Status
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------
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First batch of boards is currently in testing (Sep 2014)
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Board layout
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------------
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A snapshot of the current state of the board is below. Note that this is a working snapshot of the board, so it may look quite messy at times.
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[<img style="width: 500px;height: auto" src="https://raw.githubusercontent.com/noisymime/speeduino/master/reference/hardware/v0.2/speeduino-v0.2-board.png"/>](https://raw.githubusercontent.com/noisymime/speeduino/master/reference/hardware/v0.2/speeduino-v0.2-board.png)
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Schematic
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---------
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As above, this is a working, in-progress snapshot of the current schematic. It may look messy at times.
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[<img style="width: 1000px;height: auto" src="https://raw.githubusercontent.com/noisymime/speeduino/master/reference/hardware/v0.2/speeduino-v0.2-schematic.png" />](https://raw.githubusercontent.com/noisymime/speeduino/master/reference/hardware/v0.2/speeduino-v0.2-schematic.png)
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Board Configuration
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===================
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The board can be configured in multiple ways depending on the hardware you use and way your setup is configured.
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Optional Components
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-------------------
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If using a VR crank sensor, the board will require the addition of a VR conditioner. The board has been designed to work with the dual VR conditioner from JBPerf (http://www.jbperf.com/dual_VR/index.html) which will plug directly in. Other VR conditioners will also likely work, but have not been tested.
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Jumper Configs
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--------------
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Depending on the type of crank and cam sensors you have, there are a number of jumpers that will need to be set. The jumpers that need setting are:
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- JP1 - This sets whether the Ignition outputs are 12v or 5v. Note that even if you set this to 12v you should \*\*NOT\*\* connect these directly to a high current coil. These outputs should only ever go to a logic level coil or an igniter
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- JP2 - Whether or not the RPM1 (Crank) input should be routed via the (Optional) VR conditioner. This should be set to VR when using either a VR sensor or a hall sensor that switches between 0v-12v
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- JP3 - Same as JP2, but for the RPM2 (Cam) input
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- JP4 - 10k pullup resistor for RPM1 input. Should be jumpered ('On') when a sensor is used that switches between ground and floating (Which is most hall effect sensors)
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- JP5 - Same as JP4, but for the RPM2 (Cam) input
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To make this simpler, the most common sensor types and their required configurations are below:
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| Crank Sensor | Cam Sensor | JP2 | JP3 | JP4 | JP5 |
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|---------------------------|-----------------------|------|------|-----|-----|
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| Floating Hall sensor
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(Ground and floating) | - | Hall | Off | On | Off |
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| VR Sensor | - | VR | Off | Off | Off |
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| 0v-12v Hall Sensor
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(Requires VR Conditioner) | - | VR | Off | Off | Off |
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| Floating Hall sensor
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(Ground and floating) | Floating Hall sensor
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(Ground and floating) | Hall | Hall | On | On |
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| VR Sensor | Floating Hall sensor
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(Ground and floating) | VR | Hall | Off | On |
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