Tim Crenshaw

Embedded Systems Engineer at DEFT Dynamics
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Contact Information
us****@****om
(386) 825-5501
Location
Greater Birmingham, Alabama Area
Languages
  • English Native or bilingual proficiency

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Bio

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Experience

    • United States
    • Venture Capital and Private Equity Principals
    • 1 - 100 Employee
    • Embedded Systems Engineer
      • Sep 2021 - Present

      • Built mobile applications for iOS and Android to interface with various smart devices through Bluetooth and integrate various web services including AWS, Parse, MQTT, and InfluxDB. (Dart, Flutter, Swift) • Developed embedded firmware for various internet connected devices and added support for various peripherals including BLE, GPS, CanBus, and NMEA2000. (C, C++) • Developed applications to gather, analyze, and visualize various large data sets from a variety of different sources (Python, C++, OpenCV). • Developed scripts to control and log data from various Smart Home peripherals (Python). • Designed schematics and printed circuit boards for various IoT devices using the Nordic nRF series microcontrollers and various peripherals. Show less

    • United States
    • Industrial Machinery Manufacturing
    • 700 & Above Employee
    • Controls Engineer III
      • Aug 2017 - Sep 2021

      • Developed software tools to automatically generate code for PLC and DCS systems from various databases, allowing projects to be completed more efficiently. (Python, SQL, VBA). • Created software to interface with PLC and DCS systems through various communication protocols to aid in the testing and commissioning of these systems (Python). • Designed, implemented, and tested continuous process control strategies for specialty chemical, and pulp and paper applications (DeltaV, Allen Bradly ControlLogix). • Designed, implemented, and tested control strategies for batch applications in the chemical and pharmaceutical industries (DeltaV, Allen Bradly ControlLogix). • Performed onsite commissioning and testing with clients to ensure control strategies functioned correctly and efficiently. Show less

  • University of Alabama
    • Tuscaloosa, Alabama
    • Graduate Research Assistant
      • May 2016 - May 2017

      Bio-Impedance Measurement PCB and Data Modeling Project • Designed PCBs to allow a Keysight Impedance Analyzer to take Bio-impedance measurements • Performed optimization and filtering routines on bio-impedance data to develop models for the data • Designed a PCB to be an analog front end for AD5933 impedance converter to allow small impedance measurements with a tetra-polar electrode configuration. Wearable Wireless Embedded System Project • Designed PCBs for a network of wearable embedded systems to send and receive data in real time over a Wi-Fi network. • Populated, tested, and debugged PCB designs during PCB design cycle. • Developed software for ESP8266 based micro-controllers in C++ to communicate wirelessly with other devices on the network. Laser Communication System for a CubeSat Satellite Project • Designed PCBs for a laser communication system. • Developed software for AVR based micro-controllers in C and AVR Assembly to encode and send data via a laser and receive/decode the data on another device. FPGA Training Device Development Project • Created an FPGA training board to help teach undergraduate students how to use FPGAs • Designed PCBs that added numerous peripherals to an Altera Cyclone IV FPGA via I2C, SPI, and UART communication protocols. • Performed electrical testing on the PCBs after fabrication and population to ensure complete functionality Show less

    • United States
    • Utilities
    • 700 & Above Employee
    • Electrical Engineering COOP
      • Aug 2013 - May 2015

      • Tested power substation equipment and substation protection schemes to ensure correct operation under fault conditions • Verified and corrected all substation designs for each project • Calculated power flow to verify accuracy all substation meters and equipment • Tested power substation equipment and substation protection schemes to ensure correct operation under fault conditions • Verified and corrected all substation designs for each project • Calculated power flow to verify accuracy all substation meters and equipment

Education

  • University of Alabama
    Master of Engineering (M.Eng.), Electrical and Electronics Engineering
    2016 - 2017
  • University of Alabama
    Bachelor of Science (BS), Electrical and Electronics Engineering
    2012 - 2017

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