Hi,

The QR code can be read from the flash directly using C pointers.

The QR code is stored in the physical location "0x0FE043EC" and is 90 bytes long.

Regards,

Tony

For end devices, you should set APP_FREQ to REGION_US_LR_END_DEVICE in config_app.h.

Regards,

Tony

That sounds quite challenging as the sensor is not used for those type of applications. In fact, it's required to place the sensor facing upwards for UV measurements. You have to put a diffuser on top of the sensor as well.

UV reading should be close to 0 (-5 to 5) in an indoor environment and at night. You can record a few days' data and see how much UV light you can receive coming through the window at daytime using our Si1153/33-OPT-EXP board. We have a reference design on that board. You can use the configuration for UV(diffuser) design in our software tools Si115x Programmer's Toolkit in your test.

As far as detecting sunset vs sunrise, I don't think the sensor will be able to do that.

Regards,

Tony

Hello 

For my project, I had to use a potentiometer on my EFR32xBG22 board.I found this code which I found interesting :https://github.com/SiliconLabs/peripheral_examples/tree/master/series2/iadc/iadc_single_16bit

The problem I have is that I don't understand how it works. I only have a main. So, if anyone has used a potentiometer with this type of card before, I'd like some information on the code and then how to find a result.

Thanks so much. 

Miléna. 

Hi,
 

You can simply set the threshold and interrupts on Si1151 to detect objects. The sensor will interrupt the host whenever the sample reaches the threshold (there're 3 different threshold-based interrupt modes). When you build your prototype, you have to figure out what's the best threshold setting for your application during the test.

Regards,

Tony

Hi,

1. Each bit in the IRQENABLE register is assigned to its corresponding measurement channel. For example, if you set IRQENABLE to 0x01, you will receive the interrupt whenever channel 0's measurement is done.

2. You can increase the integration time setting to improve the detection distance.

3. That back-to-back measurement is done internally to cancel the ambient light noise. You don't have to do any post-processing of the outputs. 

Regards,

Tony

You can configure the radio to work in your region (921MHz) on a 700 series device.

Here's a list of supported regions: https://www.silabs.com/wireless/z-wave/global-regions

Regards,

Tony

Hi,

SLWSTK6050A is obsolete and has been replaced with SLWSTK6050B :

https://www.silabs.com/development-tools/wireless/z-wave/z-wave-700-starter-kit

Regards,

Tony

Hi,

The LED on time is the same as the integration time which can be adjusted by both HW_GAIN and DECIM settings. 24.4us is the minimum setting (DECIM=3, HW_GAIN=0). I believe the KBA is referring to that setting. However, if DECIM is set to 0 (by default), the integration time will be 48.8us (HW_GAIN=). The application note uses that number as an example. 

Regards,

Tony