Projects - anthonysportfolio.in

My Project Portfolio

As a hardware engineering intern for ButterflyMX, I had the opportunity to work on several projects involving testing and design verification of access control systems and their communication systems.

Seen here is a testing set up I utilized to verify the effective communication range for an RFID reader implemented in an access control system. I tested and plotted the effective range where the device could recognize multiple RFID tags from different brands and compared them. This enabled my company to help decide whether or not to support this product or switch to a legacy RFID recognition system.

To help analyze the effective communication range of various RFID recognition systems, I learned how to use a handheld spectrum analyzer. This allowed me to better inform my company on how different RFID devices would behave when implemented within our access control systems.

In this photo is a gyroscope I implemented to provide data for our vibration table test. I implemented the gyroscope in order to better understand how our devices would behave when exposed to mechanical stress like vibration. The arduino acts as an interface for the MPU6050 and routes the data to an external PC where the acceleration data for each axis and when the measurement was taken can be analyzed.

Above is a set of 8 power resistors I mounted into a custom wooden frame. This was done to provide a secure mounting point for test wiring harnesses. The resistors were implemented in a max load test for PCB mounted relays in our products. These PCBs were also subjected to environmental stress and monitored by a data logger. This allowed our team to observed the thermal behavior of our devices and see how they responded to max load operating conditions, while still managing their power draw safely.

MY Micromouse Projects

Hardware and Firmware MicroMouse

Shown to the left here is part of my micromouse project. In this project I helped design the hardware and firmware to enable a robotic maze solving mouse to use infrared emission and detection to determine the presence of a maze wall. The purple glow is from the emission of IR light being bounced off the surrounding environment to tell our mouse when to turn and avoid maze walls. This was done by using an IR receiver and converting the time delay between emission and transmission into a distance, and then determining which direction the mouse should turn using a flood fill algorithm. I’d like to give credit to my MicroMouse partner Kristen Bae for her contributions to the project, her LinkedIn is linked below.

Antenna Design

Here is a port view of a mictrostrip and patch antenna I optimized in CST microwave studio. This was done to match impedance to a patch antenna being fed by a microstrip transmission line of 50 ohms. The antenna’s scattering parameters, characteristic impedance and directivity were all analyzed and engineered to meet design specifications.

Contributors to My Projects

Kristen Bae