json_handler.h File Reference

#include "cJSON.h"
#include "stdio.h"

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Classes
struct	pid_const

Functions
char *	create_pid_data_to_json (float current, float error, float P, float I, float D)
	Converts PID data to a json string. More...
struct pid_const	read_pid_data_from_json (const char *data)
	Reads PID constant data from a json formatted string. More...

Function Documentation

create_pid_data_to_json()

char* create_pid_data_to_json	(	float	current,
		float	error,
		float	P,
		float	I,
		float	D
	)

Converts PID data to a json string.

Parameters

current	current value
error	error value, deviation of current from setpoint
P	Value of Proportional Gain (P)
I	Value of Integral Gain (I)
D	Value of Derivative Gain (D)

Returns

char* - Json string of the data sent through parameters.

read_pid_data_from_json()

struct pid_const read_pid_data_from_json

(

const char *

data

)

Reads PID constant data from a json formatted string.

Parameters

data	Pointer to char array containging the json formatted string

Returns

struct pid_const - Returns a array of PID constants, extracted from the json string