Tim Crenshaw Email & Phone Number

Birmingham, Alabama, Us

• 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 seriesmicrocontrollers and various peripherals.

Mobile, Al, Us

• 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.

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

Atlanta, Ga, Us

• 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

Master Of Engineering (M.Eng.), Electrical And Electronics Engineering

Bachelor Of Science (Bs), Electrical And Electronics Engineering