Commit 9a3d3bcc authored by Birte Kristina Friesel's avatar Birte Kristina Friesel
Browse files

add simple TSL2591 illuminance / IR sensor driver

parent 4e70dc99

include/driver/tsl2591.h

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+30 −0
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/*

 * Copyright 2020 Daniel Friesel

 *

 * SPDX-License-Identifier: BSD-2-Clause

 */

#ifndef TSL2591_H

#define TSL2591_H



class TSL2591 {

	private:

		TSL2591(const TSL2591 &copy);

		unsigned char const address = 0x29;

		unsigned char txbuf[2];

		unsigned char rxbuf[4];



	public:

		TSL2591() {}



		unsigned short ch0;

		unsigned short ch1;



		void init();



		unsigned char getStatus();

		void read();

};



extern TSL2591 tsl2591;



#endif

src/app/datalogger/main.cc

+13 −0
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@@ -42,6 +42,9 @@ 
#ifdef DRIVER_MPU9250

#include "driver/mpu9250.h"

#endif

#ifdef DRIVER_TSL2591

#include "driver/tsl2591.h"

#endif



void loop(void)

{
@@ -127,6 +130,12 @@ void loop(void) 
	kout.printf_float(max44009.getLux());

	kout << endl;

#endif



#ifdef DRIVER_TSL2591

	tsl2591.read();

	kout << dec << "TSL2591 CH0: " << tsl2591.ch0 << " / CH1: " << tsl2591.ch1;

	kout << hex << "   (status: 0x" << tsl2591.getStatus() << ")" << endl;

#endif

}



int main(void)
@@ -211,6 +220,10 @@ int main(void) 
	mpu9250.init();

#endif



#ifdef DRIVER_TSL2591

	tsl2591.init();

#endif



	arch.idle_loop();



	return 0;

src/driver/tsl2591.cc

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/*

 * Copyright 2020 Daniel Friesel

 *

 * SPDX-License-Identifier: BSD-2-Clause

 */

#include "driver/tsl2591.h"

#if defined(MULTIPASS_ARCH_HAS_I2C) && !defined(DRIVER_SOFTI2C)

#include "driver/i2c.h"

#else

#include "driver/soft_i2c.h"

#endif



void TSL2591::init()

{

	txbuf[0] = 0xa0;

	txbuf[1] = 0x03;

	i2c.xmit(address, 2, txbuf, 0, rxbuf);

	txbuf[0] = 0xa1;

	txbuf[1] = 0x01; // 200ms integration time

	i2c.xmit(address, 2, txbuf, 0, rxbuf);

}



void TSL2591::read()

{

	txbuf[0] = 0xb4;

	i2c.xmit(address, 1, txbuf, 4, rxbuf);

	ch0 = (rxbuf[1] << 8) + rxbuf[0];

	ch1 = (rxbuf[3] << 8) + rxbuf[2];

}



unsigned char TSL2591::getStatus()

{

	txbuf[0] = 0xb3;

	i2c.xmit(address, 1, txbuf, 1, rxbuf);

	return rxbuf[0];

}



TSL2591 tsl2591;