Meadow.Foundation.Sensors.Hid.Mpr121 1.4.0.3

Meadow.Foundation.Sensors.Hid.Mpr121

Freescale Semiconductor MPR121 I2C capacitive keypad controller

The Mpr121 library is designed for the Wilderness Labs Meadow .NET IoT platform and is part of Meadow.Foundation.

The Meadow.Foundation peripherals library is an open-source repository of drivers and libraries that streamline and simplify adding hardware to your C# .NET Meadow IoT application.

For more information on developing for Meadow, visit developer.wildernesslabs.co.

To view all Wilderness Labs open-source projects, including samples, visit github.com/wildernesslabs.

Usage

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");

    var sensor = new Mpr121(Device.CreateI2cBus(Meadow.Hardware.I2cBusSpeed.Standard), 90, 100);
    sensor.ChannelStatusesChanged += Sensor_ChannelStatusesChanged;

    return Task.CompletedTask;
}

private void Sensor_ChannelStatusesChanged(object sender, ChannelStatusChangedEventArgs e)
{
    string pads = string.Empty;

    for (int i = 0; i < e.ChannelStatus.Count; i++)
    {
        if (e.ChannelStatus[(Mpr121.Channels)i] == true)
        {
            pads += i + ", ";
        }
    }

    var msg = string.IsNullOrEmpty(pads) ? "none" : (pads + "touched");
    Resolver.Log.Info(msg);
}

How to Contribute

• Found a bug? Report an issue
• Have a feature idea or driver request? Open a new feature request
• Want to contribute code? Fork the Meadow.Foundation repository and submit a pull request against the develop branch

Need Help?

If you have questions or need assistance, please join the Wilderness Labs community on Slack.