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Projects! Yay! SAMD51 Breakout Since Microchip has not yet released a breakout board for the SAMD51 or an Xplained Board, I decided to build my own as well as brush up on my QFN soldering skills. Not too bad a job if I do say so myself! A closeup: Rocketry Altimeter Project I wanted to build an altimeter for my own rocket, so I embarked on this project. The hardest part I think is the soldering of the BNO055 IC which is both expensive and incredibly difficult to solder, with all its pads hidden under the IC, so there is no visual way of inspecting the solder connection. The best I can do is to ensure that ther are no shorts between the pins that I have broken out. However, my first attempt has been rather successful. ...

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The SAMD51 is a next step up from the SAMD21, a popular series of chips that have been used for various boards. It has more memory, more space, and is a more advanced chip. What does it do? It is a breakout board for the SAMD51. It takes all the pins and locates them on conveninent headers for easier prototyping. Why is it cool? Microchip has not released a Xplained Board and so far the only two breakout boards are from Adafruit, which does not break out all the pins, and Mattairtech, which breaks out more pins, but not all. This breakout board breaks out all the pins while keeping the number of components as low as possible. ...

This is a easy project for adding some really nice lighting to your desk. It is an LED strip suspended in an arc above the desk, providing efficient lighting with almost no shadows. There is no soldering involved, so it is perfect for your first project if you’ve never worked with electronics before. The original project is from DIY Perks, in which the overhead lamp was made with aluminium strips and the stands were made out of concrete. However the problem I had with the original design was that concrete takes a while to dry (about 2 days) and it took a few tries for me to get it right without it being either too sandy or crumbling apart. ...

What is it? It is a PCB that has components mounted on to test the understanding of protocols like blinking an LED, using interrupts, and communication protocols like I2C and SPI. Why is it cool? Getting to know a chip almost always follows the same process: Blink an LED, read a button, use SPI/I$^2$C, get a screen to work. I realised that I was building the same circuits over and over again on the breadboard, so I decided that I wanted a more permanent solution. ...

This is a DC Motor Controller that is built off the TIVA TM4C123. This microcontroller has several nice features, such as a CAN bus and two hardware quadrature decoders. This means that we can attach quadrature encoders to any motor and use them to compute a position for the motor. With a CAN bus we can link up multiple controllers together to precisely control the motion of each motor. This enables the builder to construct bigger and more elaborate robots with each connection. For example, a single board can drive a differential drive robot. Two boards can drive a SCARA arm robot, three boards can drive a full 6DOF robot arm. ...

What is it? Model rocketry is a sport where you launch rockets that you built into the sky, sometimes kilometers high, and retrieve all components, hopefully intact. Why is this cool? Model Rocketry combines mechanical and electrical components and puts them into a the same chamber as a controlled explosion. Introduction Long story short, we won 2nd place in the Midwest Rocketry Competition 2018 with The Lemon, pictured below: ...

What is it? This is a list of all common electronics components that I use. Why is it cool? It is my reference when I am picking out components, and it helps when I have a standard set of components that I use. Power I use Microchip’s LDO selector for my power requirements: http://www.microchip.com/ParamChartSearch/Chart.aspx?branchID=90004 MIC5209 500mA, SOT223, good for powering beefy components if heat dissipitation is a concern, has a higher range of voltages (16V) than the MIC5219. ...

Pegbot is the robot that I submitted for the 2018 Tech Cup at Northwestern University. In this competition, robots are tasked to follow a rainbow line around in a loop and over a 45 degree ramp on a timer. What does it do? Pegbot is a robot that combines a microcontroller and an Android phone to track and follow a line. Why is it cool? I had to overcome several challenges to get the robot to work quickly and consistently. I feel that these lessons learnt can be applied forward in other robotics projects. ...