qmi8658c: Add support for the QMI8658C sensor (#467)

* Add support for the QMI8658C sensor

* qmi8656c: update ReadTemperature signature

* Update README devices count

examples/qmi8658c/main.go

@@ -0,0 +1,66 @@
+// Connects to an QMI8658C I2C accelerometer/gyroscope and print the read data.
+// This example was made with the "WaveShare RP2040 Round LCD 1.28in" in mind.
+// For more infor about this development board:
+// https://www.waveshare.com/wiki/RP2040-LCD-1.28
+package main
+
+import (
+	"machine"
+	"time"
+
+	imu "tinygo.org/x/drivers/qmi8658c"
+)
+
+func main() {
+	i2c := machine.I2C1
+	// This is the default pinout for the "WaveShare RP2040 Round LCD 1.28in"
+	err := i2c.Configure(machine.I2CConfig{
+		SDA:       machine.GP6,
+		SCL:       machine.GP7,
+		Frequency: 100000,
+	})
+	if err != nil {
+		println("unable to configure I2C:", err)
+		return
+	}
+	// Create a new device
+	d := imu.New(i2c)
+
+	// Check if the device is connected
+	if !d.Connected() {
+		println("unable to connect to sensor")
+		return
+	}
+
+	// This IMU has multiple configurations like output data rate, multiple
+	// measurements scales, low pass filters, low power modes, all the vailable
+	// values can be found in the datasheet and were defined at registers file.
+	// This is the default configuration which will be used if the `nil` value
+	// is passed do the `Configure` method.
+	config := imu.Config{
+		SPIMode:     imu.SPI_4_WIRE,
+		SPIEndian:   imu.SPI_BIG_ENDIAN,
+		SPIAutoInc:  imu.SPI_AUTO_INC,
+		AccEnable:   imu.ACC_ENABLE,
+		AccScale:    imu.ACC_8G,
+		AccRate:     imu.ACC_NORMAL_1000HZ,
+		AccLowPass:  imu.ACC_LOW_PASS_2_62,
+		GyroEnable:  imu.GYRO_FULL_ENABLE,
+		GyroScale:   imu.GYRO_512DPS,
+		GyroRate:    imu.GYRO_1000HZ,
+		GyroLowPass: imu.GYRO_LOW_PASS_2_62,
+	}
+	d.Configure(config)
+
+	// Read the accelation, rotation and temperature data and print them.
+	for {
+		acc_x, acc_y, acc_z := d.ReadAcceleration()
+		gyro_x, gyro_y, gyro_z := d.ReadRotation()
+		temp, _ := d.ReadTemperature()
+		println("-------------------------------")
+		println("acc:", acc_x, acc_y, acc_z)
+		println("gyro:", gyro_x, gyro_y, gyro_z)
+		println("temp:", temp)
+		time.Sleep(time.Millisecond * 100)
+	}
+}