nanoFramework.Iot.Device.Ft6xx6x 1.2.615

Ft6xx6x/Ft6336GU - 触摸屏控制器

FT6xx6x 是触摸屏控制器。M5Core2 有一个 FT6336U。此驱动支持 FT6236G、FT6336G、FT6336U 和 FT6426。示例已使用 M5Core2 构建和测试。

文档

• 您可以在此处找到这些寄存器。
• 有关触摸控制器、事件、手势的更多信息。

使用方法

重要：在创建 I2cDevice 之前，请确保正确设置 I2C 引脚，尤其是对于 ESP32，请确保已安装 nanoFramework.Hardware.ESP32 nuget

//////////////////////////////////////////////////////////////////////
// when connecting to an ESP32 device, need to configure the I2C GPIOs
// used for the bus
Configuration.SetPinFunction(21, DeviceFunction.I2C1_DATA);
Configuration.SetPinFunction(22, DeviceFunction.I2C1_CLOCK);

对于 STM32 等其他设备，请确保您正在使用您想要使用的 I2C 总线的预设引脚。

注意：此示例需要 M5Core2。如果您想要使用其他设备，只需删除所有相关的 nuget。

M5Core2.InitializeScreen();
I2cConnectionSettings settings = new(1, Ft6xx6x.DefaultI2cAddress);
using I2cDevice device = I2cDevice.Create(settings);
using GpioController gpio = new();

using Ft6xx6x sensor = new(device);
var ver = sensor.GetVersion();
Debug.WriteLine($"version: {ver}");
sensor.SetInterruptMode(false);
Debug.WriteLine($"Period active: {sensor.PeriodActive}");
Debug.WriteLine($"Period active in monitor mode: {sensor.MonitorModePeriodActive}");
Debug.WriteLine($"Time to enter monitor: {sensor.MonitorModeDelaySeconds} seconds");
Debug.WriteLine($"Monitor mode: {sensor.MonitorModeEnabled}");
Debug.WriteLine($"Proximity sensing: {sensor.ProximitySensingEnabled}");

gpio.OpenPin(39, PinMode.Input);
// This will enable an event on GPIO39 on falling edge when the screen if touched
gpio.RegisterCallbackForPinValueChangedEvent(39, PinEventTypes.Falling, TouchInterrupCallback);

while (true)
{
    Thread.Sleep(20);
}

void TouchInterrupCallback(object sender, PinValueChangedEventArgs pinValueChangedEventArgs)
{
    Debug.WriteLine("Touch interrupt");
    var points = sensor.GetNumberPoints();
    if (points == 1)
    {
        var point = sensor.GetPoint(true);
                // Some controllers supports as well events, you can get access to them as well thru point.Event
        Debug.WriteLine($"ID: {point.TouchId}, X: {point.X}, Y: {point.Y}, Weight: {point.Weigth}, Misc: {point.Miscelaneous}");
    }
    else if (points == 2)
    {
        var dp = sensor.GetDoublePoints();
        Debug.WriteLine($"ID: {dp.Point1.TouchId}, X: {dp.Point1.X}, Y: {dp.Point1.Y}, Weight: {dp.Point1.Weigth}, Misc: {dp.Point1.Miscelaneous}");
        Debug.WriteLine($"ID: {dp.Point2.TouchId}, X: {dp.Point2.X}, Y: {dp.Point2.Y}, Weight: {dp.Point2.Weigth}, Misc: {dp.Point2.Miscelaneous}");
    }
}