docs: update boards/V03

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title: V0.3 Board
description: Usage and details of the v0.3 series of boards
published: true
date: 2022-04-04T07:45:08.102Z
date: 2022-04-04T07:54:13.341Z
tags:
editor: markdown
dateCreated: 2020-01-06T01:53:42.683Z
@ -130,3 +130,43 @@ To make this simpler, the most common sensor types and their required configurat
| V0.3.1 | Moved MAP sensor closer to edge of board. Beefier routing on the high current outputs (Including injectors) | [Download](https://github.com/speeduino/Hardware/blob/main/v0.3/Prior%20versions/v0.3.1/v0.3.1_bom.xlsx) |
| V0.3 | Initial release | [Download](https://github.com/speeduino/Hardware/blob/main/v0.3/Prior%20versions/v0.3.0/v0.3_bom.xlsx) |
## Full pin number chart
Chart consist all pin numbers used in Speeduino Firmware for v0.3 boards. Pin numbers are Arduino Mega pin numbers. Not IDC pin numbers. This chart can be used as a guide when setting unused default outputs for some other use.
| Pin name | Pin number | Description |
|---------------------------|-----------------------|-----|
| pinInjector1 | 8 | Output pin injector 1
| pinInjector2 | 9 | Output pin injector 2
| pinInjector3 | 10 | Output pin injector 3
| pinInjector4 | 11 | Output pin injector 4
| pinInjector5 | 12 | Output pin injector 5
| pinCoil1 | 28 | Pin for coil 1
| pinCoil2 | 24 | Pin for coil 2
| pinCoil3 | 40 | Pin for coil 3
| pinCoil4 | 36 | Pin for coil 4
| pinCoil5 | 34 | Pin for coil 5 (PLACEHOLDER)
| pinTrigger | 19 | The CAS pin
| pinTrigger2 | 18 | The Cam Sensor pin
| pinTrigger3 | 3 | The Cam sensor 2 pin (VVT2 input pin)
| pinTPS | A2 | TPS input pin
| pinMAP | A3 | MAP sensor pin
| pinIAT | A0 | IAT sensor pin
| pinCLT | A1 | CLS sensor pin
| pinO2 | A8 | O2 Sensor pin
| pinBat | A4 | Battery reference voltage pin
| pinDisplayReset | 48 | OLED reset pin
| pinTachOut | 49 | Tacho output pin
| pinIdle1 | 5 | Single wire idle control
| pinIdle2 | 53 | 2 wire idle control
| pinBoost | 7 | Boost control
| pinVVT_1 | 6 | Default VVT output
| pinVVT_2 | 48 | Default VVT2 output
| pinFuelPump | 4 | Fuel pump output
| pinStepperDir | 16 | Direction pin for DRV8825 driver
| pinStepperStep | 17 | Step pin for DRV8825 driver
| pinStepperEnable | 26 | Enable pin for DRV8825
| pinFan | A13 | Pin for the fan output
| pinLaunch | 51 | Can be overwritten below
| pinFlex | 2 | Flex sensor (Must be external interrupt enabled)
| pinResetControl | 50 | Reset control output