Hi Paul,

First of all, Si114x products are not recommended for new designs. I'd recommend you to look into Si115x for proximity applications.

The Si114x_PGM_Toolkit software runs on Windows 10 machine as well. Once connected, the board will appear as HID in the device manager. If you have installed the driver included in the installation folder, you should be able to connect to the board and update the firmware. The executable is launcher.exe. Here's the download link to the latest software:

https://www.silabs.com/documents/login/software/install_Si114x_PGM_Toolkit_2_3.exe

After launching the software, you can pick Si1147-M1 Postage Stamp demo and program that to the board.

Regards,

Tony

Hi,

I've moved your questions to our technical support system. Please follow up there.

Regards,
Tony

Hi,

Please try the configuration below and see if that works.

conf[0] = 0B01100001; // ADCCONFIG (DECIM_RATE set to 3)

conf[1] = 0B00000010, // ADCSENS (HW_GAIN set to 2)

Regards,

Tony

Hi,

The total measurement time is larger than 800us. 390us is just the integration time per ADC measurement. The total measurement time is about 155us + 48.8us + 390us * 2 (there're 2 back-to-back measurements per reading).

You should start with the default HW_GAIN setting. The sample rate is too fast and the HW_GAIN setting is too high.

Regards,

Tony

Hello,

I don't find in si515 i2c device, any description of the registers (for the i2c access),

Which document describe these registers ?

Thank you

Hi,

I have moved your question to our technical support system. Please follow up there. Also, since Si117x is only available under NDA, if you have further questions, please submit support tickets instead of posting questions on the forum.

Regards,

Tony

Hi,

Adding the lens can extend the detection range of Si1153 to 2m, however, the view angle will be limited to +/-10 degree. Without the lens, the view angle can meet your requirement, but the detection range will be less than 50cm.

Regards,

Tony

Hi,

1. You can simply ignore the UV-Deep photodiode option. We originally provided that to compensate the UV result when converting the output to UV index, but it didn't turn out to be very useful. The Operation column describes the location of photodiode it's using. 

2. There's no straightforward conversion from raw data to light intensity. We came up with a model to calculate UV index based on testing results. You can check that in the application note AN968: https://www.silabs.com/documents/public/application-notes/AN968-Si1133-UV-Index-Sensor-Electrical-and-Optical-Design-Guide.pdf

I've also attached an example code with the configuration and coefficients to calculate the UV index. Please be aware that diffuser is required in the optical design and calibration must be done for each unit in MP.

Regards,

Tony

Hi,

I'll move your questions to our technical support system as Si1172 is only available under NDA. Please follow-up and check my response there.

Regards,

Tony

Hi,

I've moved your question to our technical support system as Si1144 is only available under NDA. Please see my response and follow up there.

Regards,

Tony