Need help for my FYP

[yfmoo]

Hi Guy,

I need to get some inform from u guy regarding my FYP ....title multilevel planting greenhouse......need 4 sensor to detect the plant grow :
1.Temperture
2. Humidity
3. PH =
4. LDR
once get all this data and need to export to PC( Collect data)\

I plan to do a temperature, humidity, PH & LDR sensing.should I combined Humidity & PH sensor in PR11 ( Port A)........
what thing i need to change in the PIC source code for Humidity & PH?

do i need to build a data logger to export the sensing data ....any idea?

[shahrul]

I plan to do a temperature, humidity, PH & LDR sensing.should I combined Humidity & PH sensor in PR11 ( Port A)........
what thing i need to change in the PIC source code for Humidity & PH?

do i need to build a data logger to export the sensing data ....any idea?

Just getting all the sensor temperature, humidity, PH and LDR.
LDR is not sensing parameter, it's sensing device, but I think maybe you want measure the irradiation. You just read value of solar light.
To read that, it most of using analog. You program to use the ADC module on PIC.

[navidbox]

I plan to do a temperature, humidity, PH & LDR sensing.should I combined Humidity & PH sensor in PR11 ( Port A)........
what thing i need to change in the PIC source code for Humidity & PH?

do i need to build a data logger to export the sensing data ....any idea?

Just getting all the sensor temperature, humidity, PH and LDR.
LDR is not sensing parameter, it's sensing device, but I think maybe you want measure the irradiation. You just read value of solar light.
To read that, it most of using analog. You program to use the ADC module on PIC.

i need the same job but for the different analog measurement. i can already display the values. but how to log them?

Please help me if you have made any progression on that.

[hyng]

The simplest ways to communicate with PC is by using the USB to UART Converter. Once you can communicate with the PC, you can try to display your data (sending your data to Computer) at Hyperterminal.
There is few sample projects which use the USB to UART converter to communicate with PC such as
Fingerprint Reader (UART) http://www.cytron.com.my/viewProduct.php?pid=MCwwKQoMEjIbHDQuLzMvM1hPrMDR63dkqr6UCHzqVWA=

[sich]

i need the same job but for the different analog measurement. i can already display the values. but how to log them?

Where do u want to log the data? Inside the PC or PIC?
For PC, the easiest way is to save the data in a text file. For PIC or any mcu, you can save in program memory, eeprom...

[Brian Griffin]

Another way of logging the data is to put the contents into the SDcard.

However the coding of accessing the SDcard is very tedious and libraries are recommended. Please check CCS compiler or MikroC, they have those inside. I believe MPLAB C18 has those libraries too.

[shahrul]

However the coding of accessing the SDcard is very tedious and libraries are recommended. Please check CCS compiler or MikroC, they have those inside. I believe MPLAB C18 has those libraries too.

Yes, true. I KIV SDcard project about 1 year. It's so difficult to build this using Hi-Tech, because I never use CCS compiler and MikroC yet.