Worked on the System EE team @ Apple and helped solve a few coexistence issues between different subsystems on the iPhone 13. Also contributed to factory FATP testing and debugging.
AB3 - Axon's Body Worn Camera
Contributed to a bunch of different subsystems such as; high speed video interface, RF noise mitigation, USB signal integrity, Audio subsystem, GNSS performance characterization, PCBA DFM and component second sourcing
AB3's single bay dock
Designed from scratch all the electronics inside the battery charging & ethernet data offload stations for the camera AB3. Intimately familiar with USB-C data and power, Ethernet MDI/MII ports
AB3's eight bay dock
Also designed from scratch all the electronics inside the much larger capacity battery charging & ethernet data offload station for AB3s.
Taser7's Battery Dock
Redesign and validation of the battery charging and data aggregators Docks for Axon's Conducted Electrical Weapon - Taser7. Very familiar with LiPo battery charging, multi-cell balancing, battery protection circuit as well as testing and modifing the design to pass all Safety & EMC certifications. Also worte the firmware for the battery charging algorithms.
Blue Ray @ IST Lisboa
Economical Underwater optical communication system, Blue Ray, in use on a Medusa class AUV for fast data transfer over short distances. This is an alternative to low speed acoustic communication done over larger distances underwater
LIGO @ Caltech
Automated photodiode frequency response measurement system: using a network controlled VNA, modulatable laser and fiber optic multiplexer
IoT for Potted Plants
The device logs soil moisture, relative humidity and temperature of a potted plant. All of this data is sent to the could via MQTT brokers and can be used to track the health of the plant. Additionally, the device can periodically water the plant via a water pump controlled by a relay. A simple web frontend created and hosted on IBM Bluemix is used to display data from the device and issue commands to the device. The device is also capable of OTAFU (over the air firmware update)
Media Interactive Toy
The toy contains sensors, actuators and connects to the cloud via WiFi. The actuators respond to the content being played to bring the show to life, while the sensors let the viewer control the flow of the media storyline by reacting at certain points. The content is being controlled by a node.js server and a HTML5 player