Gary Yao Email & Phone Number

Hauppauge, Ny, Us

• Design firmware on various Atmel microcontrollers (ATmega1284P, ATmega168P, ATSAMD21G18) for broadcast and video production industries.• Implement feature changes and bug fixes on existing and new products. Major features include bootloader for updating the microcontrollers through SD cards.• Make modifications for schematic revision in Cadence schematic capture software.• Participate in PCB review for high speed 12G/s SDI traces as well as other digital embedded communications circuitries. (SPI, I2C)• Troubleshoot engineering prototypes and verify new designs.

Huntington, New York, Us

• Wrote firmware in C on the Atmel ATmega328P and the ESP8266 for food safety and temperature monitoring applications.• Developed IoT embedded systems using 915mHz RF transceivers, ATmega328P and the ESP8266.• Utilized MQTT messaging protocol on the Raspberry Pi and the ESP8266 to create a food chilling monitoring system to help food distributors adhere to FDA's guidelines.• Created QT applications using C/C++ running on the Raspberry Pi that acts as a central gateway for food monitoring probes.• Developed Ad-Hoc Wi-Fi enabled timer bars for the fast food industry using ESP8266.• Interfaced with various temperature, humidity sensors and thermocouples using I2C and SPI protocols.• Used Bitbucket/SourceTree version control repository for development projects.• Build and debug engineering prototypes using DMM, oscilloscope and logic analyzer.

Ronkonkoma, Ny, Us

• Create C# programs to generate PNP files by combining BOMs and component centroid files.• Develop pick and place programs based on PCB Gerber drawings in Downstream CAM350.• Review assembly documentation, drawings, Engineering Change Notice (ECN), and Bills of Materials (BOMs) to prepare work instructions and create job travelers by utilizing in-house Purchasing Production Quality (PPQ) management system.

Lincolnshire, Il, Us

• Execute manual and automated test plans to validate firmware functionality of barcode scanners. • Examine end user documentation to make sure all the provided information is correct.• Log issues found in bug tracking tools. (Jira, IBM ClearQuest)• Provide project status to test lead.• Benchmark the performace of Zebra scanners against the performance of competitors' scanners.

• Created a webpage using JavaScript and HTML that will monitor the status of a fire alarm system.• Made a windows form using Visual C# that allows the user to input result for quality control tests and output them for future references. • Developed a test fixture for Life Safety fire alarm system. o Generated tones for evacuation and inquiry. o Used Embedded Atmel microcontroller and Visual C# for the test fixture. o Utilized RS232 UART protocol as serial communication. • Tested the limitations of the telephone system. o The effects of having multiple telephones in the system. o The effects of attenuation on the system due to the length of the wire.

• Provided technical support to students living on campus.• Help students resolve problems about device connectivity issues, software problems and other information technology related dilemmas.