As I've read on this site, the Si1132 is NRND; the Si1133 is recommended to be used instead. But what about spectral response of the Si1133. Is it the same as of the Si1132 ?

Hello, 

Bringing up a custom board design, based on efr32mg13.

Would like to test and activate the Si7006 via I2c.

Could not find any example code in the efr32 examples (found only Si7013/Si7021 examples).

Where can I find some example code?

 

Thank you! 

Dear Experts,

now i am working with Si7021 with Quectel MC60 module, this is my code snippet for your reference

            u8 addr1 = 0X80;
            u8 reg_buffer[2];
            u8 read_buffer[4]= {0x00,0x00,0x00,0x00,0x00};
            s8 temp_read[2];
            float temp[2];
            reg_buffer[0] = 0xE0;
            //temp_read = 0;
            ret = Ql_IIC_Write_Read(1,addr1,reg_buffer,1,read_buffer,2);
            SerialPrint("\r\n<---read function is ready-->\r\n");
            temp_read[0] = (read_buffer[0]<<8)|read_buffer[1];
            temp[0] = (float)temp_read[0];
            SerialPrint("\r\n<---RAW DATA-->[%s][%s][%.2f]\r\n",read_buffer[0], read_buffer[1], temp[0]);

 

this print junk and zero in my uart, then i was already connect MPU6050 6axis accelerometer, that works fine, anyone can help me to solve this kindly let me know

thanks in advance

 

regards

kannannatesh

I have a sensor which is not giving the sensor value(value is zero).But i was reading the partID of the sensor. It was return the value correctly(0x33).

Now the I2C communication of the sensor is good and the diode is not working.

Then how to know the diode has failed.Please elaborate.

We have run the sensor for 3 days continuously and fetching the data in a fixed position.And we taken the sensor values with a LED .The  first value and the last value varies in the range of 1000.

Now I want to know ,what is the acceptable range to check the sensor is not degraded? 

Hi,

I have an SI1147-M01-EB evaluation kit.  I have downloaded the SI114x Programmers Toolkit, but I cannot get a connection to the hardware.  The quick-start guide refers to Windows 7 only, so is it impossible to make this kit work on a Windows 10 machine?

In Device Manager, the device appears as an HID (Human Interface Device) rather than under Ports or USB - is this the problem?

If I launch SI1140 Control Panel, under devices I can see COM1 or TS004A572A.  Pressing Connect with either device selected results in an error - unable to set baud rate for COM1 and unable to initialize SI114x. Function: InitSI114x for TS004A572A.

Also, when I launch the Firmware Updater, what should I choose from the evaluation board drop-down?  Module?

Can someone help please?

Thanks

 

 

 

We have used the Si1133-AA00-GM sensor for a application.I need the following information for further usage and purchase of the sensor  1.What is the Life time of the SI1133 sensor? 2.Please share the EOL detail of the sensor? 3.How to check the degradation of the sensor?  kindly support as soon as possible 

To whom it may concern, the datasheet does not include any information concerning the RoHS Compliancy for the Si7021-A20-GM1R so it can't be used as proof of RoHS Compliancy. We are using this part in one of our products and need a RoHS Certificate or some form of documentation stating RoHS Compliancy for our document control. I need this as soon as possible. It is holding up the release of a product. Thank you, Roger

Hi,

I am using si1153 to detect a thin line to pass through.

The init. code is 

void Init_Sensor(void)
{
	uint8_t conf[4];

	Si115x_Param_Set(Si115x_CHAN_LIST, channel);

	Si115x_Param_Set(Si115x_LED1_A, 0x3F);


	// Configure timing parameters
	Si115x_Param_Set(Si115x_MEASRATE_H,   0);
	Si115x_Param_Set(Si115x_MEASRATE_L,   1);
	Si115x_Param_Set(Si115x_MEASCOUNT_0,  1);
	Si115x_Param_Set(Si115x_MEASCOUNT_1,  0);
	Si115x_Param_Set(Si115x_MEASCOUNT_2,  0);

	//------  Configuration for channel 1 ------
	conf[0] = 0B00000001;  // ADCCONFIG
	conf[1] = 0B00000100,  // ADCSENS
	conf[2] = 0B01000000;  // ADCPOST conf[2] = 0B01000001;  // ADCPOST
	conf[3] = 0B01100001;  // MEASCONFIG conf[3] = 0B01000011;  // MEASCONFIG

	Si115x_Config_Channel(1, conf);

	Si115x_Send_Command(START);
}

Measurement period = 800us

Measurement time = 390us

However, there are 6/7 interrupts found within 800us.

Is the setting wrong?

Hi,

I have a Silicon Labs Si7053-EVB.

The evaluation software is written in LabView. Where can I find the LabView drivers?

Best Regards

- David Woods

Hello there,

In single measurement mode (which I assume is not doing any averaging) I  am getting  a raw value reading fluctuation of about 
+/- 40 (dec). Without bypass cap at the sensor it is about +/- 60. This was observed without magnet nearby the sensor.

I am just wondering if this is a normal sensor noise level.

Thanks.

 

 

 

 

 

Hi,

       The "sw_op" described in the Si7060 datasheet is a 9 bit number, but in the "Register Interface" description section, you can only see that the bit6-bit 0 of 0xC6 is "sw_op." Where are the other two bits?

Dear Silabs,

There are several questions to ask when using SI1175. Please help answer. Thanks. (NDA agreement has been signed)

1. Use official code, when using high power mode to turn on two LEDs. When the heart rate is higher than 140, it will crash. why?

2. How much power does the SI1175 consume? In what mode did you get it?

Hi, I am trying to get accurate UV reading from Si1133. I am planning to use 0.6mm Corning Gorilla Glass and is trying to select a telfon diffuser. According to the paragraph below, I am wondering if a standard PTFE tape like this (https://www.neoseal.net/tds/Neoseal%20PTFE%20Tape.pdf) would work? If so, is there any special requirements (color, shape, etc.) to meet? And can the tape be pasted directly onto the glass overlay?

 

Thank you!