Umair Aftab / Mbed 2 deprecated Autus Featured

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Dependencies:   TextLCD mbed

Fork of keypad_test by Plamen Totev

Autus

This is the codebase accompanying the project Autus.

Autus is an automated growth chamber for plants.

Features

Control Humidity inside chamber wrt to external humidity. Control Temperature inside chamber. ( Peltier Heaters/Coolers ) Water and shower plants. Control soil humidity. Monitor water tanks level (Load Cell) /media/uploads/umairaftab/frdm_-_new_page1.png

Code Base Features

Fixed timing and CRC for DHT-11 Sensor. Fixed OneWire bug for ds18b20

Cyclic Executive Scheduler with Priority. Async IPC framework for PC App over bluetooth

Fake RTC systick, I was having some trouble with the on board rtc.

/media/uploads/umairaftab/download.png

SoilMoisture/soilmoisture.cpp

Committer:
umairaftab
Date:
2014-04-11
Revision:
7:1d691f81d455
Child:
11:f9ffd5ab7e94

File content as of revision 7:1d691f81d455:

#include "mbed.h"
#include "soilmoisture.h"
/*https://mbed.org/users/chris/notebook/Getting-best-ADC-performance*/
static const int MAX_DATAPOINTS=500;
static const unsigned int MAX_ADC_VALUE=65535;

unsigned short current_soil_humid1=0;
unsigned short current_soil_humid2=0;

unsigned int current_soil_humid1_int=0;
unsigned int current_soil_humid2_int=0;

unsigned int CMA_soil1=0;
unsigned int CMA_soil2=0; 

float soil1_humid=0;
float soil2_humid=0;

void read_soil_humidity(){
    
    int count =0; 
    while(count<MAX_DATAPOINTS){
        
        current_soil_humid1 = soil_sense1.read_u16();
        current_soil_humid2 = soil_sense2.read_u16();
        
        //convert from short to int
        current_soil_humid1_int = (unsigned int)current_soil_humid1;
        current_soil_humid2_int = (unsigned int)current_soil_humid2;
        
        CMA_soil1 =  (current_soil_humid1_int + (count*CMA_soil1))/(count+1);
        CMA_soil2 =  (current_soil_humid2_int + (count*CMA_soil2))/(count+1); 
        
        wait_ms(5);
        count++;    
    }

}

void calc_soil_humid_values(){
    
    soil1_humid = CMA_soil1/MAX_ADC_VALUE;    
    soil2_humid = CMA_soil2/MAX_ADC_VALUE;
    
}