La Suno / Mbed 2 deprecated afero_poc15_180413

Added a GPIO to power on/off for external I2C sensor(s) (with LEDs)

Dependencies:   UniGraphic mbed vt100

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edge_color Class Reference
Public Member Functions

edge_color Class Reference

edge_color edge_sensor which manages LED and color sensor (VEML6040) More...

#include <edge_color.h>

Inherits edge_sensor.

Public Member Functions

 edge_color (VEML6040 *sensor, PwmOut *led[], uint16_t *pwm)
 constructor
 ~edge_color (void)
 destructor
virtual void reset (void)
 reset and clear internal values
virtual void prepare (void)
 prepare at first this was planned to set LEDs before sampling, but turned out to be not neccesarry
virtual int sample (void)
 sample sampling the color value(s) is some what complicated.
virtual int deliver (void)
 Deliver the sampled value to the afero cloud.
virtual void show (void)
 Show the value(s) in the display (TFT)
void calibrate (uint16_t target[], uint16_t result[], int num_ave)
 calibrate: caribrate the led pwm values trying to adjust the measured values to the values given in target[].
void request_calibration (void)
 request_calibration: set the flag to calibrate next avilable time slot
int calibration_requested (void)
 calibration_requested
void getAveColor (uint16_t led[], uint16_t v[], int num_ave)
 getAveColor
int getRGB (uint16_t v[])
 getRGB
uint8_t getConfig (void)
 getConfig
void setConfig (uint8_t config)
 setConfig
uint16_t get_pwm_period (void)
 get_pwm_period
void set_pwm_period (uint16_t period)
 set_pwm_period
uint16_t get_pwm_target (void)
 get_pwm_target
void set_pwm_target (uint16_t target)
 set_pwm_target
uint16_t getR (void)
 getR
uint16_t getG (void)
 getG
uint16_t getB (void)
 getB
uint16_t getPwmR (void)
 getPwmR
void setPwmR (uint16_t pwm_r)
 setPwmR
uint16_t getPwmG (void)
 getPwmG
void setPwmG (uint16_t pwm_g)
 setPwmG
uint16_t getPwmB (void)
 getPwmB
void setPwmB (uint16_t pwm_b)
 setPwmB
void setLEDs (uint16_t led_value[])
 setLEDs set pwm values to PwmOut pins to drive LEDS
void setLEDs (uint16_t r, uint16_t g, uint16_t b)
 setLEDs set pwm values to PwmOut pins to drive LEDS
virtual void setId (uint16_t id)
 assign _id manually
virtual void enable (void)
 enable the edge_sensor
virtual void disable (void)
 disable the edge_sensor
virtual bool isEnabled (void)
 test if the edge_sensor is enabled (or not)
virtual void toJson (char *buf)
 toJson convert sampled data to json format
virtual void displayTime (int32_t ts)
 display timestamp in human readable format ts int32_t timestamp value to display
void setInterval (uint16_t interval)
 setInterval assign sampling interval time (in sec)
uint16_t getInterval (void)
 getInterval get sampling interval time (in sec)
int getStatus (void)
 getStatus get current status of the state machine
int advanceStatus (void)
 advanceStatus proceed status into the next state
virtual int runStateMachine (void)
 runStateMachine run the statemachine for single cycle

Detailed Description

edge_color edge_sensor which manages LED and color sensor (VEML6040)

Definition at line 11 of file edge_color.h.

Constructor & Destructor Documentation

edge_color ( VEML6040 *  sensor,
PwmOut *  led[],
uint16_t *  pwm 
)

constructor

Parameters:
*sensorVEML6040 object
*led[]PwmOuts for LEDs
*pwm[]uint16_t pwm duty values

Definition at line 34 of file edge_color.cpp.

~edge_color ( void   )

destructor

Definition at line 57 of file edge_color.cpp.

Member Function Documentation

int advanceStatus ( void   ) [inherited]

advanceStatus proceed status into the next state

Returns:
advanced status
void calibrate ( uint16_t  target[],
uint16_t  result[],
int  num_ave 
)

calibrate: caribrate the led pwm values trying to adjust the measured values to the values given in target[].

Measurements are repeated num_ave+2 times and the minimum and maximum values will be discarded then average values are calculated using the remaining values.

Parameters:
target[]uint16_t target values for R, G, B measurement
result[]uint16_t calibrated pwm R,G,B values
num_averepeat time for averaging the measurement data

Definition at line 253 of file edge_color.cpp.

int calibration_requested ( void   )

calibration_requested

Returns:
if the calibration is due

Definition at line 77 of file edge_color.h.

int deliver ( void   ) [virtual]

Deliver the sampled value to the afero cloud.

Reimplemented from edge_sensor.

Definition at line 102 of file edge_color.cpp.

void disable ( void   ) [virtual, inherited]

disable the edge_sensor

Definition at line 36 of file edge_sensor.cpp.

void displayTime ( int32_t  ts ) [virtual, inherited]

display timestamp in human readable format ts int32_t timestamp value to display

Definition at line 70 of file edge_sensor.cpp.

void enable ( void   ) [virtual, inherited]

enable the edge_sensor

Definition at line 31 of file edge_sensor.cpp.

uint16_t get_pwm_period ( void   )

get_pwm_period

Returns:
pwm_period in us

Definition at line 110 of file edge_color.h.

uint16_t get_pwm_target ( void   )

get_pwm_target

Returns:
measurment target value controlled by the pwm

Definition at line 122 of file edge_color.h.

void getAveColor ( uint16_t  led[],
uint16_t  v[],
int  num_ave 
)

getAveColor

Measure num_ave + 2 times and throw away min and max before calculating average.

Parameters:
led[]uint16_t pwm values for R,G,B
v[]uint16_t averaged measurement value
num_aveint measurment repeat time for averaging

Definition at line 213 of file edge_color.cpp.

uint16_t getB ( void   )

getB

Returns:
measured value of B

Definition at line 146 of file edge_color.h.

uint8_t getConfig ( void   )

getConfig

Returns:
config this value is used to trigger VEML6040 measurement

Definition at line 98 of file edge_color.h.

uint16_t getG ( void   )

getG

Returns:
measured value of G

Definition at line 140 of file edge_color.h.

uint16_t getInterval ( void   ) [inherited]

getInterval get sampling interval time (in sec)

Returns:
the interval time in uint16_t

Definition at line 103 of file edge_sensor.cpp.

uint16_t getPwmB ( void   )

getPwmB

Returns:
PWM value of B LED

Definition at line 176 of file edge_color.h.

uint16_t getPwmG ( void   )

getPwmG

Returns:
PWM value of G LED

Definition at line 164 of file edge_color.h.

uint16_t getPwmR ( void   )

getPwmR

Returns:
PWM value of R LED

Definition at line 152 of file edge_color.h.

uint16_t getR ( void   )

getR

Returns:
measured value of R

Definition at line 134 of file edge_color.h.

int getRGB ( uint16_t  v[] )

getRGB

Parameters:
v[]uint16_t measured R,G,B values
Returns:
0: success non-0: failure

Definition at line 185 of file edge_color.cpp.

int getStatus ( void   ) [inherited]

getStatus get current status of the state machine

Returns:
current status as int

Definition at line 108 of file edge_sensor.cpp.

bool isEnabled ( void   ) [virtual, inherited]

test if the edge_sensor is enabled (or not)

Returns:
true: the sensor is enabled false: the sensor is disabled

Definition at line 41 of file edge_sensor.cpp.

void prepare ( void   ) [virtual]

prepare at first this was planned to set LEDs before sampling, but turned out to be not neccesarry

Reimplemented from edge_sensor.

Definition at line 84 of file edge_color.cpp.

void request_calibration ( void   )

request_calibration: set the flag to calibrate next avilable time slot

Definition at line 71 of file edge_color.h.

void reset ( void   ) [virtual]

reset and clear internal values

Reimplemented from edge_sensor.

Definition at line 77 of file edge_color.cpp.

int runStateMachine ( void   ) [virtual, inherited]

runStateMachine run the statemachine for single cycle

Returns:
the result status

Definition at line 122 of file edge_sensor.cpp.

int sample ( void   ) [virtual]

sample sampling the color value(s) is some what complicated.

At first leds are turned on using the pwm values _pwm[]. then VEML6040 is triggered with config value, which includes the trigger method and integration time. Wait for the integration time (actually x 1.25 of the value) then acquire the color values from VEML6040 and turn the leds off.

Reimplemented from edge_sensor.

Definition at line 89 of file edge_color.cpp.

void set_pwm_period ( uint16_t  period )

set_pwm_period

Parameters:
pwm_perioduint16_t pwm period in us

Definition at line 116 of file edge_color.h.

void set_pwm_target ( uint16_t  target )

set_pwm_target

Parameters:
targetuint16_t measurement target value

Definition at line 128 of file edge_color.h.

void setConfig ( uint8_t  config )

setConfig

Parameters:
configuint8_t 8bit value to use trigger VEML6040 measurement

Definition at line 104 of file edge_color.h.

virtual void setId ( uint16_t  id ) [virtual, inherited]

assign _id manually

Definition at line 32 of file edge_sensor.h.

void setInterval ( uint16_t  interval ) [inherited]

setInterval assign sampling interval time (in sec)

Parameters:
intervaluint16_t the value to assign

Definition at line 98 of file edge_sensor.cpp.

void setLEDs ( uint16_t  led_value[] )

setLEDs set pwm values to PwmOut pins to drive LEDS

Parameters:
led_value[]uint16_t pwm values for R, G, B

Definition at line 63 of file edge_color.cpp.

void setLEDs ( uint16_t  r,
uint16_t  g,
uint16_t  b 
)

setLEDs set pwm values to PwmOut pins to drive LEDS

Parameters:
ruint16_t pwm value of R LED
guint16_t pwm value of G LED
buint16_t pwm value of B LED

Definition at line 70 of file edge_color.cpp.

void setPwmB ( uint16_t  pwm_b )

setPwmB

Parameters:
pwm_b

Definition at line 182 of file edge_color.h.

void setPwmG ( uint16_t  pwm_g )

setPwmG

Parameters:
pwm_g

Definition at line 170 of file edge_color.h.

void setPwmR ( uint16_t  pwm_r )

setPwmR

Parameters:
pwm_r

Definition at line 158 of file edge_color.h.

void show ( void   ) [virtual]

Show the value(s) in the display (TFT)

Reimplemented from edge_sensor.

Definition at line 137 of file edge_color.cpp.

void toJson ( char *  buf ) [virtual, inherited]

toJson convert sampled data to json format

Parameters:
bufchar* string buf to store the json string

Definition at line 93 of file edge_sensor.cpp.

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