Devin Alexander Email & Phone Number

Wilmington, Ma, Us

- Troubleshooted customer applications involving communication protocols: I2C, SPI, CAN, RS-485- Developed firmware for reference designs involving device battery fuel gauging and charging over USB-C Power Delivery 3.0 specifications- Advised customers with PCB development, reviewed circuit schematics and layouts- Debugged circuit electrical issues while utilizing various lab equipment instruments

San Jose, Ca, Us

- Immersed with multiple IDEs and development environments such as Eclipse, VS Code, ARM mbed- Applied software knowledge to development firmware using C and C++- Gained knowledge and experience in using communication protocols such as SPI, I2C, and mixed-signal technology such as ADC/DAC

San Jose, Ca, Us

- Developed embedded libraries for common electrical components sold by Maxim Integrated- Created multiple Embedded RTOS demos using ARM microcontrollers for - Coauthored technical documentation on thermocouple principles that was published in Electrical Engineering Journal1. I developed firmware for various Maxim ICs inside of ARM's mbed online compiler platform. Libraries were developed in C++, were concisely documented using the Doxygen API, and included functionality such as: Read/Write capability, register manipulation, and data acquisition (all of which used protocols such as I2C and SPI). I learned a great amount of debugging skills while writing my firmware by using a digital logic analyzer to see if the protocols were communicating from Host to Device correctly. This helped me to diagnose why information wasn't getting passed successfully in certain instances. My most notable firmware project was for the MAX31856 , which is a Thermocouple Temperature Sensor (see link below to see the source code).2. A fun project that a few other interns in my group and I worked on was to measure the capacitance of a known capacitor but using only a custom ARM microprocessor equipped with internal analog components such as: op amps, comparators, adcs, dacs, etc. I learned how to manipulate registers of the ARM processor internally to allow access to these added on components by reading through documentation of the Microprocessor. This was a great learning experience of combining both HW and SW knowledge in combination with a RTOS to get a reasonable output. 3. My final project was to write technical documentation of the topic of thermocouple measurement. This consisted of learning about the theory of how thermocouples resolve a temperature reading, identifying multiple points of failure, and follow up discussion on how to improve measurements. This was a great opportunity to practice my technical documentation abilities.

Downers Grove, Il, Us

I was an intern at AllTranstek for 2 summers (2015 and 2016). During my time at AllTranstek, I was responsible for working with custom databases, updating/creating new databases for customers specializing in the tracking and shop management of Rail Car Lessors. Responsibilities included networking with companies like BP, Cargill, Shell, and 100+ other companies in order to understand how services we provided were being used. Learned more about how RFID tracking is used in order to help keep track of rail cars throughout North America(mainly US and Canada). Was taught how the Rail Industry operates on a systems level.

Westmont, Il., Us

My Job was to over the summer learn how an industrial belt drive machine operated by looking at manuals and other forms of documentation. My job was to replace an outdated Siemens PLC Micromaster 420 Series AC Inverter with a newer Hitachi Industrial WJ200 Series AC Inverter. I had to first try to understand how the previous PLC commands controlled the machine and then use Ladder logic, truth tables, and Karnough Maps to figure out which sensor inputs were used in different ways to control the outputs on the machine. I provided all documentation to the manager of the Machine Maintenance department and let the owner of the Factory know what I had replaced and how. With his approval, I had successfully switched out and updated his factory equipment with new power electronics.

Computer Engineering

Bachelor Of Science - Bs, Computer Engineering

Associate’S Degree, Computer Engineering