LIS3DH custom reg settings

Adafruit_LIS3DH.h

// Add these to public methods block:
				// Getters for i2c_dev and spi_dev - Modification to the original library
				Adafruit_I2CDevice *getI2CDevice() { return i2c_dev; }
				Adafruit_SPIDevice *getSPIDevice() { return spi_dev; }

gistfile1.cpp

// This is how I use them

// ... other init code ...
		Adafruit_I2CDevice *i2c_dev = imu.getI2CDevice(); ///< Pointer to I2C bus interface
		Adafruit_SPIDevice *spi_dev = imu.getSPIDevice(); ///< Pointer to SPI bus interface

		Adafruit_BusIO_Register ctrl3 = Adafruit_BusIO_Register(i2c_dev, spi_dev, ADDRBIT8_HIGH_TOREAD, LIS3DH_REG_CTRL3, 1);
		Adafruit_BusIO_RegisterBits i1_click = Adafruit_BusIO_RegisterBits(&ctrl3, 1, 7);
		i1_click.write(1); // enable i1 click

		Adafruit_BusIO_Register ctrl5 = Adafruit_BusIO_Register(i2c_dev, spi_dev, ADDRBIT8_HIGH_TOREAD, LIS3DH_REG_CTRL5, 1);
		Adafruit_BusIO_RegisterBits int1_latch_bit = Adafruit_BusIO_RegisterBits(&ctrl5, 1, 3);
		int1_latch_bit.write(true);

// and so on

set_click.cpp

void imu_setClick() {
		imu.setRange(LIS3DH_RANGE_8_G); // 2, 4, 8 or 16 G!
		imu.enableDRDY(false);

		// Adjust this number for the sensitivity of the 'click' force
		// this strongly depend on the range! for 16G, try 5-10
		// for 8G, try 10-20. for 4G try 20-40. for 2G try 40-80
		const uint8_t clickthresh = 70;
		//		const uint8_t clickthresh = 20;
		const uint8_t timelimit = 10;
		const uint8_t timelatency = 20;
		const uint8_t timewindow = 255;

		Adafruit_I2CDevice *i2c_dev = imu.getI2CDevice(); ///< Pointer to I2C bus interface
		Adafruit_SPIDevice *spi_dev = imu.getSPIDevice(); ///< Pointer to SPI bus interface

		Adafruit_BusIO_Register ctrl3 = Adafruit_BusIO_Register(i2c_dev, spi_dev, ADDRBIT8_HIGH_TOREAD, LIS3DH_REG_CTRL3, 1);
		Adafruit_BusIO_RegisterBits i1_click = Adafruit_BusIO_RegisterBits(&ctrl3, 1, 7);

		Adafruit_BusIO_Register click_cfg = Adafruit_BusIO_Register(i2c_dev, spi_dev, ADDRBIT8_HIGH_TOREAD, LIS3DH_REG_CLICKCFG, 1);

		i1_click.write(1); // enable i1 click

		Adafruit_BusIO_Register ctrl5 = Adafruit_BusIO_Register(i2c_dev, spi_dev, ADDRBIT8_HIGH_TOREAD, LIS3DH_REG_CTRL5, 1);

		Adafruit_BusIO_RegisterBits int1_latch_bit = Adafruit_BusIO_RegisterBits(&ctrl5, 1, 3);
		int1_latch_bit.write(true);

		// click_cfg.write(0x15); // turn on all axes & singletap
		// click_cfg.write(0x2A); // turn on all axes & doubletap
		click_cfg.write(0x10); // turn on Z axis & singletap

		Adafruit_BusIO_Register click_ths = Adafruit_BusIO_Register(i2c_dev, spi_dev, ADDRBIT8_HIGH_TOREAD, LIS3DH_REG_CLICKTHS, 1);
		click_ths.write(clickthresh); // arbitrary

		Adafruit_BusIO_Register time_limit = Adafruit_BusIO_Register(i2c_dev, spi_dev, ADDRBIT8_HIGH_TOREAD, LIS3DH_REG_TIMELIMIT, 1);
		time_limit.write(timelimit); // arbitrary

		Adafruit_BusIO_Register time_latency = Adafruit_BusIO_Register(i2c_dev, spi_dev, ADDRBIT8_HIGH_TOREAD, LIS3DH_REG_TIMELATENCY, 1);
		time_latency.write(timelatency); // arbitrary

		Adafruit_BusIO_Register time_window = Adafruit_BusIO_Register(i2c_dev, spi_dev, ADDRBIT8_HIGH_TOREAD, LIS3DH_REG_TIMEWINDOW, 1);
		time_window.write(timewindow); // arbitrary
}