Muscle Stimulator Part 3
A week after sending version 2 of the driver board out (see my previous post) everything came in. I soldered it all up, and I was once again impressed by...
Categories
Biomech (4)
Muscle Stimulator Part 2
After nearly three weeks of waiting (digikey parts came in super late due to a lab financial mixup) everything finally came in.
Muscle Stimulator Part 1
This summer, my main goal is figuring out how to make a mobile muscle stimulator with “blanking” capabilities. Here’s roughly how I arrived at this project:
Stimulation Control Board
A controller for multichannel muscle stimulation at the biomechatronics lab!
Internships (3)
ModalAI - a recap
This summer, I interned for ModalAI again, just like last year.
ModalAI (Again!)
Last year was a lot of fun, so I’m back again!
ModalAI Internship
This summer I spent a ton of time at ModalAI, a company I interned for. It was awesome.
Miscellaneous (18)
Even Cell Discharge via Current Collector DCIR
Most electrical knowledge in the FSAE community is relatively limited, especially in simulation. Although most teams have Ansys sponsorships (which give full access to the EM suite, including SIWave), they...
3-Level Flying Capacitor Multilevel Inverter
Designing a wirelessly-chareable RC Car with an FCML and resonant converter.
Coffee!
I like coffee now.
Summer learnings
Just a recap of some things I’ve been studying.
Simple Variable Buck Converter
Yesterday I built a variable buck converter for fun. It allows you to vary an output voltage from about 12V to 3V or less using PWM.
Physics boat
After the AP Physics Mechanics and Electricity and Magnetism exams, my physics class had a wooden boat building competition.
Converting particle devices to circuit python
How to convert particle Xenon, Argon, and (theoretically) Boron devices to circuit python.
PID Ramblings
Just some random stuff on using PID controllers on my quadrupedal robot.
Updates Blog
I decided to make a new blog (don’t worry, this one isn’t going away!)
Life 2.0 (Simulation)
Since learning how to program, I’ve always thought that it would be fun to make a nature simulation.
Autoformer
At school, whenever entering the library in periods other than lunch, before school, or after school, it is necessary to fill out a google form for attendence. As someone who...
Complementary Filters for IMU Fusion
Let’s fuse sensors - simply!
Club Python Tutorials
A learning opportunity… for everyone!
Arduino Training Presentation
Over Thanksgiving break, I decided to put together a presentation displaying the basics of arduino programming for people in my Arduino Club who are new to this. The club was...
Space Invaders
I stumbled across this sitting in my documents folder a couple days ago and I minus well post it. About 2 years ago I made a space invaders game using...
Developing my mini CNC machine
The Coronavirus quarantine period was a terrible time for many people, but I tried to use it to my advantage by completing something I hadn't had the time for: a...
2020 Top Books
Today is Daylights Savings day! Why not use your extra hour as reading time?
My First Post!
This is my first post on this new blog! I’ve never done any web development before, so this is going to be a cool chance to learn some new stuff!...
Motors (3)
DC Link Capacitor Sizing for Traction Inverters
One of reasons for writing maple was to get a better idea of how to design custom inverters for the motorsports race car. Since we’re designing the board now, the...
Simulation and Torque Optimization of PMSM Motors
I finally got around to hardcore studying motor theory this winter break, and decided to write (partly as an exercise, but mostly because I think it’ll be a helpful tool)...
BLDC Inverter V1
This post is unfinished! I worked on this project a few months ago (and am writing the post retroactively) but haven’t finished compiling what I did. There are lots of...
Motorsports (2)
Race car Avionics
As you may know, I’m on MIT Motorsports. We build an electric race car to compete in the formula sae electric and hybrid competitions in Michigan and New Hampshire each...
MY24 Dash
For the past few months I’ve been working on the dash for our car in motorsports. It’s just a board that controls a large lcd display that shows the general...
OpenServo (5)
OpenServo Cad!
OpenServo Cad!
Debugginggg
And so the problems come rolling in…
OpenServo V1
A new era of motor controllers!
Talking to an Arduino over Serial with Python
How to use the python serial library to talk to an arduino from your computer!
OpenOCD for burning bootloaders
A short explanation on how to use openocd to program the bootloader of an atmega samd21.
PCBs (10)
Muscle Stimulator Part 3
A week after sending version 2 of the driver board out (see my previous post) everything came in. I soldered it all up, and I was once again impressed by...
Muscle Stimulator Part 2
After nearly three weeks of waiting (digikey parts came in super late due to a lab financial mixup) everything finally came in.
Muscle Stimulator Part 1
This summer, my main goal is figuring out how to make a mobile muscle stimulator with “blanking” capabilities. Here’s roughly how I arrived at this project:
Stimulation Control Board
A controller for multichannel muscle stimulation at the biomechatronics lab!
Inspiration PDB - Updates
Board updates!
Inspiration PDB - Build
Time to build!
Inspiration PDB - Design
Designing a current-cramming hot-swapping power-pumping power distribution board for a competition submarine.
Stuff I Learned about USB
USB communication is a standard in our daily lives with practically every computer and even microcontroller supporting some form of it. On my robotics team, I was asked to build...
Quadruped Control Board V2.0
Ever since I started working on my quadruped, I knew that I wanted to make a ‘motherboard’ pcb for it. Version 1, a two layer board, came equiped with some...
Control Board V1!
Goodbye sketchy electronics…
Quadruped (11)
Silicone Foot Mold
During winter break, I did some experimenting with using silicon as a material for making feet for my quadrupedal robot. As one might expect, making good contact with the ground...
Quadruped Control Board V2.0
Ever since I started working on my quadruped, I knew that I wanted to make a ‘motherboard’ pcb for it. Version 1, a two layer board, came equiped with some...
Stable Body Positioning
It’s time to jazz things up a little. Time to implement whole-body rotation and translation!
Walking Development
Think • Code • Try • Fail (Repeat)
Building the Robot!
Ready to see this thing finished?
Control Board V1!
Goodbye sketchy electronics…
Fixing Interpolation
My previous method for interpolating the foot position seemed great... but was it?
Adding interpolation!
Vertical translation calculations are working well, but I'm still not satisfied.
Quadruped Robot Update 1!
Since last summer, I've been wanting to start on a fairly ambitious project: building a quadruped robot that can walk and do cool static movements. I didn't have much time...
IT... Y-axis Movement
Huh? Another degree of freedom? The Y-axis!
Two axis!
Time to add a new degree of freedom!
Team Inspiration (4)
Inspiration PDB - Updates
Board updates!
Inspiration PDB - Build
Time to build!
Inspiration PDB - Design
Designing a current-cramming hot-swapping power-pumping power distribution board for a competition submarine.
Stuff I Learned about USB
USB communication is a standard in our daily lives with practically every computer and even microcontroller supporting some form of it. On my robotics team, I was asked to build...
rf (5)
Transmission Line Taper Calculator
It is fairly common to need to adapt between line widths on an rf board. For example, most RFIC chips have pads that aren’t the correct line length to match...
PCB closeups with the SEM
While debugging the wilkinson return loss, one of the explanations I came up with for the poor response was that the impedance of the quarter wave lines was wrong. Specifically,...
TRL calibration and Wilkinson Validation
A while ago I made my v1 fmcw radar, which uses a wilkinson power divider to split power from the LO to the tx and the rx mixer 1. As...
Basic Beamforming algorithms
I’m working my way up to designing a 4x4 element phased array antenna at 5.8GHz. The idea is that two of them will be able to communicate with each other...
5.8GHz FMCW Radar Design
Since taking electromagnetics, I’ve been looking for an RF engineering project. After reading Henrik’s blog, an FMCW radar seemed like a good one; the board hardware is all RF engineering,...