Installation Instructions

ADI Confidential
Rev. Sp0 | Page 16 of 20
EMBEDDED ALGORITHMS FOR EVALUATION
Basic algorithms are included with the VSM Watch to demonstrate this type of functionality. More advanced algorithms with
specific device configurations are provided here.
PEDOMETER
A pedometer algorithm takes raw data from the 3-axis accelerometer and outputs the steps taken.
AUTOMATIC GAIN CONTROL
The digitized output of the ADPD4100 is fed to this algorithm to ensure that the LED current and AFE gain is configured
appropriately to maximize the usefulness of the Optical Signal. The default target is 70% of the allowable range for each LED
(independently determined). This Gain Control is not optimized to achieve an ideal performance versus power. Further
improvements can be made based on the end application’s requirements to achieve a better battery life