Project Autus - Automated Plant Chamber
Fork of keypad_test by
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)
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.
SoilMoisture/soilmoisture.cpp
- Committer:
- umairaftab
- Date:
- 2014-04-14
- Revision:
- 57:7ab93ed49b70
- Parent:
- 11:f9ffd5ab7e94
File content as of revision 57:7ab93ed49b70:
#include "mbed.h" #include "soilmoisture.h" /*https://mbed.org/users/chris/notebook/Getting-best-ADC-performance*/ static const int MAX_DATAPOINTS=500; static const float 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 short CMA_soil1=0; unsigned short 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 + (count*CMA_soil1))/(count+1); CMA_soil2 = (current_soil_humid2 + (count*CMA_soil2))/(count+1); wait_ms(5); count++; } } void calc_soil_humid_values(){ printf("%d \n\r",CMA_soil1); soil1_humid = (float)CMA_soil1/MAX_ADC_VALUE; soil2_humid = (float)CMA_soil2/MAX_ADC_VALUE; printf("%4.2f \n\r",soil1_humid); }