Volckens Group Sensors
Code supports writing to the SD card as well as working with the Volckens group smartphone apps for the mbed HRM1017
Dependencies: ADS1115 BLE_API BME280 Calibration CronoDot EEPROM LSM303 MCP40D17 NCP5623BMUTBG SDFileSystem SI1145 STC3100 mbed nRF51822
Fork of
UPAS_BLE_and_USB
by 
Volckens Group Sensors
Diff: main.cpp
- Revision:
- 24:ff113c02d680
- Parent:
- 23:3647fecd3cef
- Child:
- 25:658a9a146391
- Child:
- 26:9cf8e76d8274
--- a/main.cpp Sat May 30 17:08:29 2015 +0000
+++ b/main.cpp Sat May 30 17:14:54 2015 +0000
@@ -106,6 +106,7 @@
atmoRho = ((press-((6.1078*pow((float)10,(float)((7.5*temp)/(237.3+temp))))*(rh/100)))*100)/(287.0531*(temp+273.15))+((6.1078*pow((float)10,(float)((7.5*temp)/(237.3+temp))))*(rh/100)*100)/(461.4964*(temp+273.15));
massflowSet = volflowSet*atmoRho;
+ //Digtal pot tf from file: UPAS v2 OSU-PrimaryFlowData FullSet 2015-05-29.xlsx
digital_pot_setpoint = (int)floor(10.627*pow(massflowSet,4)-102.89*pow(massflowSet,3)+375.8*pow(massflowSet,2)-635.59*massflowSet+446.61); //min = 0x7F, max = 0x00
DigPot.writeRegister(digital_pot_setpoint);
@@ -127,6 +128,7 @@
if(fmod(secondsD,10)==0){
omronVolt = (omronReading*4.096)/(32768*2);
+ //Mass Flow tf from file: UPAS v2 OSU-PrimaryFlowData FullSet 2015-05-29.xlsx
massflow = 2.7143*pow(omronVolt,(float)4)-12.323*pow(omronVolt,(float)3)+22.121*pow(omronVolt,(float)2)-16.71*omronVolt+5.162;
atmoRho = ((press-((6.1078*pow((float)10,(float)((7.5*temp)/(237.3+temp))))*(rh/100)))*100)/(287.0531*(temp+273.15))+((6.1078*pow((float)10,(float)((7.5*temp)/(237.3+temp))))*(rh/100)*100)/(461.4964*(temp+273.15));
volflow = massflow/atmoRho;