Fixes PowerShell-Docs#5484 - add docs for cmdlets

docs/help/Get-GpioPin.md

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+---
+external help file: Microsoft.PowerShell.IoT.dll-Help.xml
+Module Name: Microsoft.PowerShell.IoT
+online version:
+schema: 2.0.0
+---
+
+# Get-GpioPin
+
+## SYNOPSIS
+Reads data from a GPIO pin.
+
+## SYNTAX
+
+```
+Get-GpioPin [[-Id] <Int32[]>] [[-PullMode] <PullMode>] [-Raw] [<CommonParameters>]
+```
+
+## DESCRIPTION
+
+Reads data from a GPIO pin.
+
+## EXAMPLES
+
+### Example 1 - Read raw data from a GPIO pin
+
+```powershell
+$raw = Get-GpioPin -Id 5 -Raw
+```
+
+## PARAMETERS
+
+### -Id
+
+The ID number of the pin to be read.
+
+```yaml
+Type: Int32[]
+Parameter Sets: (All)
+Aliases:
+
+Required: False
+Position: 0
+Default value: None
+Accept pipeline input: True (ByPropertyName, ByValue)
+Accept wildcard characters: False
+```
+
+### -PullMode
+
+Specifies the mode to use when reading the data. Possible values are: **Off**, **PullDown**,
+**PullUp**. Consult the documentation of your chipset to determine the requirements.
+
+```yaml
+Type: PullMode
+Parameter Sets: (All)
+Aliases:
+Accepted values: Off, PullDown, PullUp
+
+Required: False
+Position: 1
+Default value: None
+Accept pipeline input: True (ByPropertyName)
+Accept wildcard characters: False
+```
+
+### -Raw
+
+When this switch is used, the cmdlet only returns a pin state value of **High** or **Low**.
+
+```yaml
+Type: SwitchParameter
+Parameter Sets: (All)
+Aliases:
+
+Required: False
+Position: Named
+Default value: None
+Accept pipeline input: True (ByPropertyName)
+Accept wildcard characters: False
+```
+
+### CommonParameters
+
+This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable,
+-InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose,
+-WarningAction, and -WarningVariable. For more information, see
+[about_CommonParameters](http://go.microsoft.com/fwlink/?LinkID=113216).
+
+## INPUTS
+
+### System.Int32[]
+
+### System.Nullable`1[[Microsoft.PowerShell.IoT.PullMode, Microsoft.PowerShell.IoT, Version=0.1.1.0, Culture=neutral, PublicKeyToken=null]]
+
+### System.Management.Automation.SwitchParameter
+
+## OUTPUTS
+
+### System.Object
+
+## NOTES
+
+## RELATED LINKS
+
+[Set-GpioPin](Set-GpioPin.md)

docs/help/Get-I2CDevice.md

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+---
+external help file: Microsoft.PowerShell.IoT.dll-Help.xml
+Module Name: Microsoft.PowerShell.IoT
+online version:
+schema: 2.0.0
+---
+
+# Get-I2CDevice
+
+## SYNOPSIS
+Returns an **I2CDevice** object.
+
+## SYNTAX
+
+```
+Get-I2CDevice [-Id] <Int32> [[-FriendlyName] <String>] [<CommonParameters>]
+```
+
+## DESCRIPTION
+
+Returns an **I2CDevice** object.}
+
+## EXAMPLES
+
+### Example 1 - Get an I2C device object
+
+```powershell
+$Device = Get-I2CDevice -Id $Id -FriendlyName $FriendlyName
+```
+
+## PARAMETERS
+
+### -FriendlyName
+
+The friendly name of the device.
+
+```yaml
+Type: String
+Parameter Sets: (All)
+Aliases:
+
+Required: False
+Position: 1
+Default value: None
+Accept pipeline input: True (ByPropertyName)
+Accept wildcard characters: False
+```
+
+### -Id
+
+The I2c address of the device.
+
+```yaml
+Type: Int32
+Parameter Sets: (All)
+Aliases:
+
+Required: True
+Position: 0
+Default value: None
+Accept pipeline input: True (ByPropertyName)
+Accept wildcard characters: False
+```
+
+### CommonParameters
+This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable,
+-InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose,
+-WarningAction, and -WarningVariable. For more information, see
+[about_CommonParameters](http://go.microsoft.com/fwlink/?LinkID=113216).
+
+## INPUTS
+
+### System.Int32
+
+### System.String
+
+## OUTPUTS
+
+### System.Object
+
+## NOTES
+
+## RELATED LINKS

docs/help/Get-I2CRegister.md

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+---
+external help file: Microsoft.PowerShell.IoT.dll-Help.xml
+Module Name: Microsoft.PowerShell.IoT
+online version:
+schema: 2.0.0
+---
+
+# Get-I2CRegister
+
+## SYNOPSIS
+Reads the value of a register of an **I2CDevice**.
+
+## SYNTAX
+
+```
+Get-I2CRegister [-Device] <I2CDevice> [-Register] <UInt16> [[-ByteCount] <Byte>] [-Raw]
+ [<CommonParameters>]
+```
+
+## DESCRIPTION
+
+Reads the value of a register of an **I2CDevice**.
+
+## EXAMPLES
+
+### Example 1 - Read the chip identifier from the register
+
+```powershell
+$ChipId = Get-I2CRegister -Device $Device -Register 0xD0 -Raw
+```
+
+## PARAMETERS
+
+### -ByteCount
+
+The number of bytes to be returned from the register.
+
+```yaml
+Type: Byte
+Parameter Sets: (All)
+Aliases:
+
+Required: False
+Position: 2
+Default value: None
+Accept pipeline input: True (ByPropertyName)
+Accept wildcard characters: False
+```
+
+### -Device
+
+An **I2CDevice** object to be read from.
+
+```yaml
+Type: I2CDevice
+Parameter Sets: (All)
+Aliases:
+
+Required: True
+Position: 0
+Default value: None
+Accept pipeline input: True (ByPropertyName, ByValue)
+Accept wildcard characters: False
+```
+
+### -Raw
+
+Returns only the value stored in the register rather than a **I2CDeviceRegisterData** object.
+
+```yaml
+Type: SwitchParameter
+Parameter Sets: (All)
+Aliases:
+
+Required: False
+Position: Named
+Default value: None
+Accept pipeline input: True (ByPropertyName)
+Accept wildcard characters: False
+```
+
+### -Register
+
+The address of the register to be read.
+
+```yaml
+Type: UInt16
+Parameter Sets: (All)
+Aliases:
+
+Required: True
+Position: 1
+Default value: None
+Accept pipeline input: True (ByPropertyName)
+Accept wildcard characters: False
+```
+
+### CommonParameters
+This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable,
+-InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose,
+-WarningAction, and -WarningVariable. For more information, see
+[about_CommonParameters](http://go.microsoft.com/fwlink/?LinkID=113216).
+
+## INPUTS
+
+### Microsoft.PowerShell.IoT.I2CDevice
+
+### System.UInt16
+
+### System.Byte
+
+### System.Management.Automation.SwitchParameter
+
+## OUTPUTS
+
+### System.Object
+
+## NOTES
+
+## RELATED LINKS

docs/help/Microsoft.PowerShell.IoT.md

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+---
+Module Name: Microsoft.PowerShell.IoT
+Module Guid: eb74e8da-9ae2-482a-a648-e96550fb8745
+Download Help Link: {{ Update Download Link }}
+Help Version: {{ Please enter version of help manually (X.X.X.X) format }}
+Locale: en-US
+---
+
+# Microsoft.PowerShell.IoT Module
+
+## Description
+
+A PowerShell module for interacting with hardware sensors and devices using common protocols: GPIO,
+I2C & SPI.
+
+> Note: PowerShell IoT is still in Preview
+
+## Microsoft.PowerShell.IoT Cmdlets
+
+### [Get-GpioPin](Get-GpioPin.md)
+Reads data from a GPIO pin.
+
+### [Get-I2CDevice](Get-I2CDevice.md)
+Returns an **I2CDevice** object.
+
+### [Get-I2CRegister](Get-I2CRegister.md)
+Reads the value of a register of an **I2CDevice**.
+
+### [Send-SPIData](Send-SPIData.md)
+Sends data on an Serial Peripheral Interface (SPI) channel.
+
+### [Set-GpioPin](Set-GpioPin.md)
+Writes a value to a GPIO pin.
+
+### [Set-I2CRegister](Set-I2CRegister.md)
+Writes a value to a register of an **I2CDevice**.