Patrick Van Oosterwijck Email & Phone Number

Longmont, Co

* Developed and produced various LiFePO4 based power systems, the most popular being the LiFePO4wered/Pi+ Raspberry Pi power system / UPS.* Developed and produced wESP32 and PoE-FeatherWing Power over Ethernet (PoE) systems.* Launched products with three successful Crowd Supply crowdfunding campaigns.* Developed low cost, high performance Emporia Vue and Vue Gen 2 home energy monitor hardware and measurement systems.* Developed high efficiency solar light with LiFePO4 battery, changing from a single C60 solar cell, with day/night cycle algorithm.* Circuit, PCB design and Bluetooth Low Energy (BLE) firmware for ExtractCraft Source essential oil extractor.* Developed automotive weather sensor node, sampling 6 distinct sensors and communicating them to cell phone over Bluetooth Low Energy (BLE).* Created programming and test fixtures for various microcontrollers and products.* Developed Raspberry Pi based surveillance system, BLE device configuration interface and iBeacon scanner.* Created Android Cordova app for data logging of Bluetooth connected SpO2 meter.* Implemented AES GCM security using OpenSSL, MongoDB data logging and RESTful API for Wifi connectivity backend server system.

* Developed final line test software that runs all water softener lines in four factories since 2004.System and software design of various controls, using custom LCD, graphic LCD with GUI and LED based user interfaces.* Designed temperature compensated TDS measurement system used in a residential reverse osmosis system.* Developed platform-independent graphic and font library used in several products running various 8-bit and 16-bit microcontrollers.* Designed low power wireless protocol to display status information of several appliances on one or more remote monitors (Ecowater HydroLink, patent 7,949,747).* System design and firmware development for HydroLink remote monitor with graphic LCD display running on three AA batteries for a year, and HydroLinkTM RO module running on three AAA batteries for 5 years.* Designed and developed USB Programming and Testing Head used to program controllers in production, including accompanying Linux and Windows USB drivers and C and Python APIs.* Architected and developed secure cloud based connectivity for Wifi connected water treatment systems, both embedded and server components.* Initiated and participated in various research projects, some of which are designed into products.

* Selection of tools and software to set up company’s electronic design environment and lab.* Complete development of microcontroller based sensor interface system for multi-channel capacitive readout, including component selection, circuit design, board layout, prototyping and firmware.* Design of Windows based graphing data acquisition software using Visual C++ and MFC.Debugging and design optimization of multi-channel capacitive MEMS sensor.

* Designed and developed part of seven chips in various design teams. Design work was mainly digital electronics and focused on microcontroller systems and periphery for Systems On a Chip. Microcontroller design included space and speed optimized firmware development, tightly linked to custom hardware functions to provide speed and cost optimized solutions. Designed analog blocks, down to transistor level. Developed hardware setups and software for bench tests and debugging. Specific achievements include:* Design of integrated microcontroller systems using 8-bit and 16-bit RISC cores, adding interrupt controller, memory mapping and periphery including interfaces to analog circuitry, ADC/DAC, Timer Capture and Compare functions, SPI interface, etc.* Speed- and space-optimized firmware, performing complex fixed-point calculations for quadratic temperature compensation and communication protocol on an 8-bit microcontroller with just 2K ROM and 32 bytes RAM.* Design of custom digital circuits, state machines, logic for sensorless brushless DC motor control, SPI, etc.* Analog CMOS: trimmable oscillator, temperature compensated current measurement in on-chip motor driver, etc.* Verification and validation of designs using simulation tools (PSpice, Fault simulation) and real world tests on Xilinx FPGA and test chips.* Responsible for development and updating of design tools to track developments in process technology and libraries. Included writing C++ programs under Windows, using OLE to link custom tools with commercial ViewDraw software.* Layout of custom analog cells for mixed analog/digital chips, automatic place and routing of digital blocks, top routing of complete chip including design rule checks (DRC) and layout/schematic verification (LVS).

Bachelor Of Science (Bs), Electrical And Electronics Engineering

Graduated "summa cum laude" as BSEE majoring in microprocessors/embedded systems.

Highschool, Electrical And Electronics Engineering

High school education in Electronics Graduated "summa cum laude".