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Projects, Guides, and Opinions

Drone Photography

I just started getting into drones/quads in 2022. My first quad was a freestyle beast, and naturally i had a ton of fun doing flips and dives and stuff (destoryed my gopro hero 2 and my gopro hero 8). Anyway more recently I got to borrow a dji mini 4 pro with the rc 2 controller. Crazy interesting device basically autonomous espically coming from rate mode. Anyway, super boring to fly after awhile because it's so easy, but very interesting for photography since you can now easily get any angle. The mini 4 pro reignited my interest in photography (last sceen since my my Nikon D1500 days). I gotta say photographers get some pretty crazy good tech. It's ultra high performance sensors in a durable case. I mean what could be better? Anyway, they can't have this advanced tech all to themselves, and I really need to work on my design and creativity skills. Here's some of my first goodish shots. It will be interesting to look back in a few years and see where I'm at.


Brendan...Less than 1 minutePhotographyDronePhotogrpahy
Dc to Ac Inverter

Warning

Do not reapeat anything in this article, if you are not qualified. AC current can easily kill you! You have been warned.

A simple DC to AC Inverter

This article is coming soon (probably winter 2025), I just have to improve my design (my first design melted lol) which requires more time and money. Anyway my motivation for buidling: It is so wonderfully easy to go from Ac to DC. You just use a half or full bridge rectifier. In theory it's very simple and can be seen on almost every modern device that plugs into the wall (To be fair there's a engineering involved). However, going from DC to AC is another story. This article aims will show how I built a simple inverter for educational purposes using a MCU, 4 mosfets, and SPWM signal (see cover photo). My reason for doing so is to learn more about EE in general, but moreover as a first project to fully learn about motor drivers. Let me explain, modern motor drivers on electric vehicals are typically brushless "DC" motors since they offer the optimal torque-effciency compared to other options like brushed DC. Let's disect what excatly what a brushless "Dc" motor is. It's typically, a 3-phase DC-AC inverter with the electric motor's stator configured as a Y and natural magnets on the top. So it's really an AC motor not "DC", but we call it brushless "DC." Anyway, the swithcing device on these motor drivers is typically mosfets in an H-configuration though more advanced applications now use IGBT and a modified switching alogirhtm (zero loss switching alogrithms). This article will be about a simple H-bridge DC to AC inveter that I built, but will eventually switch to expirements with 3-phase AC. My end goal is not build a solid state 3 phase inverter but to better understand burshless/3 phase motor systems, so i can utilize the skill to design electronics for EVs such as drones and eskates. Anyway, coming soon because Digikey orders add up quick for something I could get for 20$ on marketplace.


Brendan...About 1 minTechnologyElectricalMotor driver
Is Repairing a Cheap CNC Mill Worth It?

About a year ago, I bought this Amazon mill for about 200$ CAD on Kijiji. I had absolutly no idea if it worked, furthermore, the electronics were in pieces so a bit of a gamble for sure. In this post I will explain how I got it in working condition and tell you if this type of used equipment (Amazon/Chinese mill, 3D printers , etc) is worth buying.


Brendan...About 8 minTechnologyCNCMillingRepair
Potentiometers and Encoders For Electronics Projects

In this post we'll dive deep into the mechanics of rotary encoders and potentiometers and provide some simple code.

While both devices are essential for measuring rotational movement, they have distinct ways of operating. Rotary encoders generate digital signals, capturing both the degree of rotation and its direction – perfect for projects where precision is key. Potentiometers act as variable resistors, offering an analog output that's invaluable for it's simplicity.


Brendan...About 15 minTechnologyArduinoPotentiometerRotary EncoderEncoderDIY
The GPT Store

🌐 My Experiments with CustomGPTs

❄️ Ski Snow Report: Your AI Assistant for Skiing Conditions


Brendan...Less than 1 minuteTechnologyopenaichatgptcustom gptGPTstore
A Beginner's Guide to Local Large Language Models (LLMs)

Note

The scope of this article change from being a rigourous guide to a brief intro. The reason is that LLMs are getting pretty boring and I don't feel like wasting time on them. Furthermore, my gaming computer no longer functions, and I current only have a 8GB laptop which doesn't really allow me to use the better models.


Brendan...About 4 minTechnologyollamallm
Welcome to Devblogging.com!

Welcome to Devblogging.com!

This blog serves as a platform where I share projects, how-tos guides, writings on other topics, and much more.

Content:

  • Projects: An in-depth look at projects I'm actively working on including robotics, programming, and more.
  • Guides: Guides/how-tos amied at hobbist/intermediate students to help gian hands on expirence.
  • Technology Insights: My analysis and opinions on the latest advancements in tech.
  • Reviews: My opinion on some of the latest tech.

Brendan B...About 2 min