I need SGP30 i2c Sensor register address would you help me?

[minseok]

Hi. every one

First of all, i am a beginner.

I connected the max44009 and CJMCU2080 sensors to the board.

and also get a value.

but sgp30 sensor is faile

there is no information even google.

so.. i want to know sgp30 sensro src or register address

plz..

thanks

[awneil]

minseok said:

i am a beginner.

Is that just a beginner with Nordic?

Or a beginner with microcontrollers in general?

Or a beginner with any form of programming?

For Nordic, start here:

https://www.nordicsemi.com/Get-Started

minseok said:

I connected the max44009 and CJMCU2080 sensors to the board.

To what board, exactly?

Remember that we don't know you, we can't see what you're doing or what you have, and we can't read your mind!

As well as connecting the hardware, you will need appropriate software running on whatever it is that you're using to control these devices.

So what software are you using?

If you have a Nordic Dev Kit, there is a TWI Scanner example - that will report the I2C (aka "TWI") addresses of all connected Slaves.

https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/twi_scanner_example.html

minseok said:

sgp30 sensor is faile

You didn't mention that as one of your sensors!

minseok said:

there is no information even google

Really?!

If I google "SGP30", I find many hits - but you haven't given enough information to know if they are the same sensor you're talking about.

So where did you obtain it?

Always ensure that you can obtain sufficient documentation before parting with your money!

minseok said:

i want to know sgp30 sensro src or register address

That has nothing to do with Nordic!

[minseok]

Thanks for answers.

first Micro controller and nordic beginner

second i am using nordic nrf52dk

third ses(SEGGER Embedded Studio)

fourth i2c connected need to "configuration register address" but i can't find

i search sgp30 datasheet but.. i can't

and i using "twi_sensor_example_file"

void SGP30_trigger_measurement(void)
{
    m_xfer_done = 0;
    ret_code_t err_code;
    uint8_t reg[2] = {SGP30_FRATURESET, NORMAL_MODE}; // this section
    err_code = nrf_drv_twi_tx(&m_twi, SGP30_ADDR, reg, sizeof(reg), false);
    APP_ERROR_CHECK(err_code);
    NRF_LOG_INFO("\n\nMuti-read enable\r\n");
    while(m_xfer_done == false);
    
    /* Writing to pointer byte. */
    reg[0] = SGP30_FRATURESET;
    m_xfer_done = false;
    err_code = nrf_drv_twi_tx(&m_twi, SGP30_ADDR, reg,1, false);
    APP_ERROR_CHECK(err_code);
    while(m_xfer_done == false);
}

"this section" need to configurtion register address

[awneil]

minseok said:

first Micro controller

You mean you are new to any form of microcontroller?

In that case, here are some general "Getting Started" tips for microcontrollers:

https://www.avrfreaks.net/comment/1138166#comment-1138166

https://www.avrfreaks.net/comment/2079906#comment-2079906

I wouldn't recommend that a beginner jump straight in to I2C!

minseok said:

i am using nordic nrf52dk

Excellent.

Then, as noted previously, you can use the TWI Scanner example.

minseok said:

i search sgp30 datasheet but.. i can't

So how did you select this part, then?

Where did you obtain it?

Is it this: 

https://www.sensirion.com/en/environmental-sensors/gas-sensors/multi-pixel-gas-sensors/

[minseok]

Right. But I did not get the value I wanted.

I can use twi_scanner to get the address value but not the configuration address value.

 So how did i get configuration address?
Also how can i get sgp30 formula?

Thankyou 

[awneil]

minseok said:

how did i get configuration address

You study the datasheet.

minseok said:

how can i get sgp30 formula

You study the datasheet.