AMS OSRAM Digital Temperature Sensor Kit AS6221

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RoadTest: Review the ams OSRAM Digital Temperature Sensor Kit and Companion App AS6221-DK

Author: SBB

Creation date: 15 Aug 2024

Evaluation Type: Development Boards & Tools

Did you receive all parts the manufacturer stated would be included in the package?: True

What other parts do you consider comparable to this product?: So far I have not yet tested any such devices. So I cannot comment on this.

What were the biggest problems encountered?: Device looks elegant and I assume works as expected. But the support service is not good. I feel sorry that I could not do justice to this review.

Detailed Review:

Product Description:

The AS6221 is a highly accurate digital temperature sensor with a resolution of up to ±0.09°C. It’s designed for healthcare applications, wearables, and devices that require precise thermal information. Here are some key features:

• Accuracy: Up to ±0.09°C accuracy.
• Digital Sensor System: The AS6221 is a complete digital sensor system that requires no calibration or linearization.
• I²C Interface: It provides measurement outputs via a standard I²C interface.
• Multiple I²C Addresses: The sensor supports eight I²C addresses, avoiding bus conflicts in multi-sensor scenarios.
• Ultra-Small Size: With dimensions of WLCSP 1.5 mm x 1.0 mm, it enables accurate body/skin temperature measurements in small health and lifestyle monitoring products.
• Low Power Consumption: Even when measuring at 4 samples/s, the current consumption is only 6 µA.
• Automatic Acquisition Modes: The sensor has four different automatic acquisition modes.
• Wide Supply Range: It maintains high accuracy over the full supply range from 1.71 to 3.6 V.
• Alert Functionality: An integrated alert triggers an interrupt to the microcontroller when a temperature threshold is exceeded. You can adjust the threshold in a device register.
• Calibration: The AS6221 production test setup is calibrated according to NIST standards, and the verification equipment is calibrated by an ISO/IEC-17025 accredited laboratory

  Refer below link for Datasheets, User guide and Support:

             https://ams-osram.com/products/sensors/temperature-sensors/ams-as6221-temperature-sensor

Unboxing:

AMS OSRAM Digital Temperature Sensor Kit AS6221 is shipped in an elegant, compact antistatic packaging with two small leaflets covering needed details to start with.

Prerequisites:

As per the instruction leaflet that came with the kit mentions to download either Android or Mac app to operate this kit. So, one should have the right device that supports these apps in hand to operate this kit.

 Note: Refer “My Experiments” below with Android App which is not yet available in the link that is provided.

My Experiments:

         1. Android App: It seems this app is not yet made available to user.

             Since I have an Android mobile, I scanned the QR code that is given in the leaflet, but it throws an error that the App is not available.

            The QR code which is given in the instructions leaflet to download the Android app is not working. It shows the error. “Item not found” on my android mobile.

            The link when I scan the QR code is as below:

                   http://ams.com/AS62xxiOSApp?utm_source=QRcode&utm_medium=folder&utm_campaign=AS62xxApp

           Then to Android App the link is: https://play.google.com/store/apps/details?id=com.ams.as62x0

          Note: I contacted the AMS support team but there was no response. Then I went through Element14 manager who was responsible for this review. He, personally discussed with the concerned team and informed me that the Android App is not yet available.

           2. Mac App: Unfortunately, I do not have an Apple product to test this feature. I assume it is working fine.

           3. I2C interface: I assume this will work and asked the support team whether I can open the case and try to connect to this I2C interface. But for this as well there is no response from support team. Again, manager from Element14 intervened here and he got an answer that this kit can be tested only with Mac App. With the permission from Element14 manager, I opened the case to connect to I2C interface. But I don’t see any activities on that interface. It could be that I am doing something wrong and running around the bush without the support from the vendor.

Conclusion: The device looks elegant and compact which caters the needed application like medical, mobile wearables and home/industrial automations with having low battery consumption. But unfortunately, I could not test without the right support from the vendor.