RespiraWorks is a 501(c)(3) non-profit organization with over 100 contributors worldwide working to rapidly develop, manufacture, and deploy a low-cost and open-source ventilator for communities under-served by the global supply chain.Most low-cost ventilator designs tackle the short-term bridge problem - a device, with common parts, that keeps someone alive for 6-8 hours of closely monitored care. However COVID-19 survivors require lung-protective adaptive ventilation strategies, and require ventilator support for days to weeks.Our product provides these premium features with an open-source design, an IEC-conformant quality process, and an optimized BOM for sourcing and manufacture in developing countries. This part of the world will deal with COVID-19 for longer, with less healthcare, and a larger deficit of medical devices.RespiraWorks provides solutions for these communities where existing manufacturers cannot.https://respira.works

Circuits Performers offers electrical Engineering design and layout contracting services. Previous and ongoing projects include: aerospace avionics, remotely-operated and manned subsea vehicles, mobile devices, test hardware, and genomic instrumentation. Please contact me for more details.

I do embedded electrical design and field deployment for Frost Methane Labs' methane emissions solutions. We cap geological methane seeps to counter the significant damaging effects of methane on the climate, while generating high-impact, low-cost carbon offset credits. Every 1 ton of methane we capture is roughly equivalent to removing 25 tons of carbon emissions. I designed, built, and installed a thermal electric generating unit for one of our machines in the Alaskan Arctic.

- Kingston Cafe is a friendly neighborhood cafe in San Mateo located across from North Shoreview Montessori School. - We serve up all your favorite coffee and espresso drinks, smoothies, sandwiches, baked goods, and soup. - We have board games, a play area for the kids, and free Wi-Fi for you to relax and enjoy, or get some work done. - Stop by and I'll make you something tasty!

I design the electronics and life support systems for DeepFlight's Super Falcon 3S manned submersible.

Co Founder and Lead RF Hardware Design EngineerWe develop ultra-low-power wireless radio networks. Our mission is to enable the widespread adoption of internet connectivity.I develop and design SigLabs' proprietary radio hardware and coherent RF receiver.

I offer high-speed, high-density electrical design, including architecture design, schematic design, and PCB layout. My consulting projects include: AR vision systems, mobile handsets, wireless devices, 3D imaging products, biotech process controllers, and solar grid-tie inverters.

I designed flight-critical electronics used in all major vehicles developed at SpaceX during my employment: Dragon V2, Dragon Cargo, Falcon 9 v 1.1, Falcon 9 v1.0, Falcon 1, Grasshopper, F9R-dev. I am a mixed-signal embedded computer design engineer with knowledge of control systems. My main role was the design, test, qualification, and flight of Falcon engine control and thrust vectoring electronics. In addition, I interfaced regularly with internal and external customers to define and direct projects. I managed two avionics engineers and mentored several others.I was part of the team that designed the Dragon V2 Crewed Spacecraft avionics architecture.I designed, tested, qualified, and flew:Falcon 9 v1.2: Engine Controller, the first orbital booster to land vertically under its own powerFalcon 9 v1.1: Engine Controller, 1st Stage, the first Avionics unit to enter high-volume productionFalcon 9 v1.0/Dragon: Vehicle Recovery Satellite Tracker, all stagesFalcon 9 v1.0: Nine-Engine Start ControllerFalcon 9 v1.0: Data Acquisition BoxDragon: Network SwitchFalcon 1: Experimental Satellite Communications RadioAll Vehicles: Sensor Input, Valve Control, Thermocouple, Thrust Vector, and Resistive Thermal Device boards.I managed production, test, qualification, and flight of:Falcon 9 v1.0: Engine Controller, 1st and 2nd Stage.Falcon 1: Thrust Vector Control, 1st StageI play Johnny Cash's Ring of Fire on the violin with Bryan White on guitar whenever Grasshopper has a test flight.

I did embedded electrical design for portable devices. My projects included an early prototype of an e-Ink-based document reader, and a digital camera interface.