Adrian Mitevski / Mbed 2 deprecated mDot_LoRa_Sensornode

A multifunctional and modular Firmware for Multitech's mDot based on ARM mBed provides a widerange of functionality for several Sensors such as MAX44009, BME280, MPU9250, SI1143 and uBlox. It allows you to quickly build a Sensornode that measures specific data with its sensors and sends it via LoRaWAN.

Dependencies:   mDot_LoRa_Sensornode_Flowmeter_impl mbed-rtos mbed

LoRa-Sensornode Firmware for Multitech mDot

A multifunctional and modular Firmware for Multitech's mDot which provides a widerange of functionality for several Sensors. It allows you to quickly build a Sensornode that measures specific data with its sensors and sends it via LoRaWAN.

/media/uploads/mitea1/logo-lora-600x370.png /media/uploads/mitea1/mt_mdot_family_642px.png

Supported Sensors

Idea

The Firmware has some predefined Application Modes running different Tasks(Measurements). Each mode can be used in a different Scenario. Application_Modes define which sensors are used, how often they aquire data and how often the data has to be sent via LoRa. Lets say you just want to measure the Light then you choose an Application_Mode (or define one) that only runs TaskLight for light measurement. As a standard all measurements are taken every second and sent via LoRa but you can change that interval depending on your usage Scenario

app/MAX44009.h

Committer:
mitea1
Date:
2018-11-02
Revision:
10:4051c38bf73f
Parent:
0:f2815503561f

File content as of revision 10:4051c38bf73f:

/**
 * @file MAX44009.h
 *
 * @author Adrian
 * @date 16.05.2016
 */

#include <stdint.h>
#include <math.h>
#include "I2C_RT.h"
#include "MAX44009Config.h"

#ifndef APP_MAX44009_H_
#define APP_MAX44009_H_

#define MAX44009_ADRESS			0b10010100
#define MAX44009_CONFIG			0x02
#define MAX44009_LUX_H_BYTE		0x03
#define MAX44009_LUX_L_BYTE		0x04
#define MAX44009_LUX_H_L_BYTE	0x0304

#define MAX44009_INT_ENABLE		0x01
#define MAX44009_TH_UPPER		0x05
#define MAX44009_TH_LOWER		0x06

/**
 * @class MAX44009
 * @brief Provides Functionality to control  the MAX44009 Sensor on the Sensbert
 */
class MAX44009 {
public:
	MAX44009(I2C_RT*);
	virtual ~MAX44009();

	/**
	 * @brief Initializes the MAX44009 according to the desired MAX44009_MODE
	 * @param desiredMode the desired Mode depending on which the MAX44009 has to be
	 * configured
	 */
	void init(MAX44009_MODE desiredMode);

	/**
	 * @brief Returns the actual lux values that has been measured by the sensor
	 * @return
	 */
	float getLux();

private:
	I2C_RT* i2c;
	MAX44009Config* config;

	/**
	 * @brief Calculates the lux value according to the mantissa and exponent whose have been read
	 * from the sensor registers. Calculation is documented in the Datasheet of MAX44009
	 * @param mantissa 	read mantissa from Sensor register
	 * @param exponent	read exponent from Sensor register
	 * @return
	 */
	float calculateLux(uint8_t mantissa,uint8_t exponent);

	/**
	 * @brief Set the integration time for Lux Measurements internally of the MAX44009
	 * according to its MAX44009Config
	 */
	void setIntegrationTime();

	/**
	 * @brief Set the MAX44009 lux measurements ContinousMode internally of the MAX44009
	 * according to its MAX44009Config
	 */
	void setContinousMode();

	/**
	 * @brief Set the MAX44009 lux measurements ManualConfig internally of the MAX44009
	 * according to its MAX44009Config
	 */
	void setManualConfig();

	/**
	 * @brief Set the I2C device that communicates with MAX44009
	 * @param i2c i2c device that communicates with MAX44009
	 */
	void setI2CRT(I2C_RT* i2c);


	/**
	 * @brief Configure MAX44009 interrupts internally
	 * according to its MAX44009Config
	 */
	void configureInterrupts();

	/**
	 * @brief Configure MAX44009 upper Lux Threshold that triggers an Interrupt
	 * according to its MAX44009Config
	 */
	void setUpperThreshold();

	/**
	 * @brief Configure MAX44009 lower Lux Threshold that triggers an Interrupt
	 * according to its MAX44009Config
	 */
	void setLowerThreshold();
};

#endif /* APP_MAX44009_H_ */