We are having a ZMGC training for Zigbee product in Shenzhen office on Dec 9-10. You are welcome to join the training. 

https://mp.weixin.qq.com/s/2qNw4Q560YKX7_I162cdhg

It sounds like you are observing the variability of sensor accuracy. If you were to test more sensors over different lots, you'd get a larger range of accuracies all within the specification. 

I'm going to raise this post to a technical support ticket so we can further assist you.

Your post has been moved to our technical support system. Please follow up there.

Regards,

Tony

Simplicity Studio has an example driver file for the Si7210 I2C hall sensor in the driver folder:

C:\SiliconLabs\SimplicityStudio\v4\developer\sdks\gecko_sdk_suite\v2.7\hardware\kit\common\drivers

The driver files are: si72xx.c/.h

Hi,

For simulating light trace, you can assume the photodiode is at the surface of the package. The field of view is determined by the mechanical structure of the optical design (including lens and overlay).

Regards,

Tony

Hi,

Yes the sensor works properly before the software reset. In theory the sensor stays powered during the host software reset.

I have changed the speed of the i2c bus to 100 KHz (instead 400 KHz). It seems the problem disappeared...

Regards,

We are designing a Si7210 sensor into a product and have some questions about it. In the Si7210 datasheet the typical RMS Noise is listed as 30 uT at 25C, 5V and 20 mT range.  In App note AN1018 scaling of the noise with supply voltage is provided (5V/Vdd). I have some questions about the noise:

1.  How does the noise change when operating at the 200 mT range?
2.  How does the noise change with temperature?
3.  Is there any guidance on worst case (maximum) noise?
4.  Is it valid to assume the noise is Gaussian? 

Thanks.

We are designing a Si7210 sensor into a product and have some questions about it. In the Si7210 datasheet the typical RMS Noise is listed as 30 uT at 25C, 5V and 20 mT range.  In App note AN1018 scaling of the noise with supply voltage is provided (5V/Vdd). I have some questions about the noise:

1.  How does the noise change when operating at the 200 mT range?
2.  How does the noise change with temperature?
3.  Is there any guidance on worst case (maximum) noise?
4.  Is it valid to assume the noise is Gaussian? 

Thanks.