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Class Mpr121

Represents the MPR121 12-Key Capacitive Touch Sensor

Assembly: Mpr121.dll​
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Declaration
public class Mpr121 : II2cPeripheral

Implements:
Meadow.Hardware.II2cPeripheral

Properties​

DefaultI2cAddress​

The default I2C address for the peripheral

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Declaration
public byte DefaultI2cAddress { get; }

RefreshPeriod​

Gets or sets the period in milliseconds to refresh the channels statuses.

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Declaration
public int RefreshPeriod { get; set; }

Fields​

i2cComms​

I2C Communication bus used to communicate with the peripheral

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Declaration
protected readonly II2cCommunications i2cComms

Methods​

ReadChannelStatus(Channels)​

Reads the channel status of MPR121 controller.

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Declaration
public bool ReadChannelStatus(Mpr121.Channels channel)
Returns​

System.Boolean

Parameters​
TypeNameDescription
Meadow.Foundation.Sensors.Hid.Mpr121.ChannelschannelThe channel to read status.

ReadChannelStatuses()​

Reads the channel statuses of MPR121 controller.

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Declaration
public IReadOnlyDictionary<Mpr121.Channels, bool> ReadChannelStatuses()
Returns​

System.Collections.Generic.IReadOnlyDictionary<Meadow.Foundation.Sensors.Hid.Mpr121.Channels,System.Boolean>

Events​

ChannelStatusesChanged​

Notifies about a the channel statuses have been changed. Refresh period can be changed by setting PeriodRefresh property.

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Declaration
public event EventHandler<ChannelStatusChangedEventArgs> ChannelStatusesChanged
Event Type​

System.EventHandler<Meadow.Foundation.Sensors.Hid.ChannelStatusChangedEventArgs>

Implements​

  • Meadow.Hardware.II2cPeripheral