Using SHT11 temp.& humid. sensor with CY8C3866PVI-021

[greencrocodile]

Hi. I have graduation project with PSoC 3. In this project i'm processing meteorological datas (pressure, temperature and humidity). I'm using CY8C3866PVI-021, 4x20 LCD, MPX5100-AP for pressure, SHT-11 for temperature & humidity in this project. I'm printing pressure data on LCD but i have problem with SHT-11. In Sensirion company's website, there are Keil c codes. I couldn't adopt them into PSoC Creator. Which communication type should i use. My thesis advisor wanted me to use this sensor in this project. Could you give me some advice.

[danadak]

This is SBus, new to me, but looking at timing, down to DC, it would be pretty simple to
bit bang 2 pins to effect the interface.

Insofar as adapting the keil code on the website, what do you think the problem is
to do so ? A cursory look at it, looks adaptable to me.

Regards, Dana.

[greencrocodile]

I will print Temp & humid values to LCD. First of all how can i use these codes in PSoC Creator. According to my searches, SHT-11 has I2C interface. In PSoC Creator, should i use I2C communication or 2 digital pins. İn 2 digital pins option one of these pins is bidirecitonal pin for data pin, another one is digital output pin.

[danadak]

If SHT-11 is I2C then use I2C.

If you choose to bit bang then an I/O pin can be setup as bidirectional and
turned around rapidly with register writes and API control.

An important doc is the TRM (Technical Reference Manaul). You will find
yourself using it a lot, as well as datasheets for specific modules.

To print to LCD first you convert to string the variable you wish to
print, format it as well. sprintf() is an extended library function that is
very useful, depends on which compiler you are using. Then you use LCD
API to write a character string to the LCD. API call descriptions in LCD
datasheet.

Regards, Dana.

[greencrocodile]

Thanks for your help. I will research TRM