Installation Instructions
ADI Confidential 
Rev. Sp0 | Page 7 of 20 
EVALUATION PLATFORM 
OVERVIEW 
The VSM watch is a modular development, demonstration, 
and data collection platform for high performance vital signs 
monitoring applications based on Analog Devices analog front 
ends and sensors. 
The platform optimized electrical and mechanical design 
hosts all the required circuits to sense, condition, digitize, 
process, store, and wirelessly transmit real-time, vital sign 
related data. This platform does the following: 
•  Minimizes the risks associated with a new electronic 
design 
•  Minimizes the time to market for a new final product 
•  Facilitates the evaluation of a wide range of Analog 
Devices solutions in a single battery-powered wearable 
ecosystem 
•  Highlights and addresses the challenges associated 
with a wearable device 
•  Allows the developer to focus on other added value 
tasks such as algorithm development and the overall 
firmware for engineering and scientific research and 
validation 
This platform is not intended to do the following: 
•  Act as the final product for a specific application 
•  Demonstrate an application specific optimized design. 
Trade-offs have been made to allow platform flexibility 
The evaluation platform kit contains the following items: 
•  The VSM platform (the watch) 
•  Charging Cradle 
•  A USB Type A to micro-usb cable 
•  Firmware Debug Board 
Figure 9. Box Contents 
The USB cable is used for the following purposes: 
1.  Recharge the battery via the charging cradle 
(connecting the watch to a PC or wall adaptor) 
2.  Upgrade the platform firmware (using the software 
tools provided and as explained in the Error! Reference 
source not found. section) 
3.  Download data stored in the internal flash memory for 
offline data analyses or other purposes 
Only use the watch with the USB cable provided. 
POWERING UP THE SYSTEM FOR THE FIRST 
TIME 
The VSM Watch is shipped from the factory in an ultra-low-
power shipment mode. To exit this power mode, place the 
watch into the cradle with connected USB cable providing 
power. 
Before using the watch for the first time, fully charge the 
battery by connecting the VSM watch to a PC or wall 
adaptor using the USB cable provided. A firmware upgrade 
may be required. Details can be found in the Error! 
Reference source not found. section. 
WATER RESISTANCE 
The watch is IP68 rated. Despite this rating, please exercise 
caution if showering, swimming or doing any other activity 
with the VSM Watch that exposes it directly to moisture. 
BLUETOOTH USB PC DONGLE (NRF52840) 
The VSM Watch platform leverages an off-the-shelf Nordic 
BLE dongle for communicating wirelessly with a PC. The 
nRF52840 is available for purchase separately through 
multiple online vendors. Custom FW for this dongle can be 
found at https://www.nordicsemi.com/Software-and-
tools/Development-Kits/nRF52840-Dongle 
Figure 10. BLE USB PC Dongle (nRF52840) 










