Temperature sensor datasheet

[kittu20]

Hello everyone,

I am currently looking datasheet of Sensirion SHTC3 sensor. However, I am confused about the information provided on page 8 of the datasheet.

There are four commands

1. Wakeup command
2. Measurement command
3. Read out command
4. Sleep command

seri_s_a0003561073_1-2291167.pdf (654.4 KB)

Do we need to send all four commands in sequence?

Or we can only use the the measurements command to read temperature

[jremington]

Spend some time studying the data sheet, which has lots of useful information. For example, there is this nice section on sleep and wakeup:

[kittu20]

@jremington

Spend some time studying the data sheet, which has lots of useful information. For example, there is this nice section on sleep and wakeup:

So, i think the correct sequence is as follows:

1. Wakeup command
2. Measurement command
3. Delay
4. Read out command
5. Sleep command

Repeat from 1 to 5

Correct me if i am thinking in wrong way

[jremington]

Try it and let us know.

[kittu20]

I don't have sensor available but i am interested understand basics working of this sensor

I2C_START ()
I2C_WRITE (0x70 + 0) Address + Write
I2C_WRITE (0x3517) Wakeup command
I2C_STOP ()

I2C_START ()
I2C_WRITE (0x70 + 0)
I2C_WRITE (0x7880) Measurement command
I2C_STOP ()

I2C_START ()
I2C_ WRITE(0x70 + 1) Adress+ READ
Disable clock straching
Read 16 Bit temperature
Read 16 Bit humidity
I2C_STOP ()

[jremington]

When you get your sensor, consider using the Arduino SHTC3 library. The examples would be a good place to start.