My first step was to figure out the transmitter's frequency. Using a spectrum analyzer, I saw that it sent a signal at 433.92 MHz once every 12 seconds, using what appeared to be on-off keying. I also searched FCC filings using the Maverick's FCC ID...
Edwards EXT255H turbo molecular pump controller BackgroundI have recently taken an interest in high-vacuum systems. A TMP is the bridge between the relatively soft-vacuums produced by traditional mechanical pumping systems and the high-vacuum world or...
The next Tetrinsic concept was going to be "Tetrinsic Concept4", but partially because this project needed a hero and partially because I was thinking about the intro music from the 33 second mark of the Fantastic Four: Worlds Greatest Heroes as...
The main purpose of this project was to create a submission for the 1kB Challenge. It turns out that 1kB is way more than I needed for this project, so I made it my goal to make this program as small as I possibly could.HardwareAt the heart of the project...
More of a blog entry than a project one.Sort of a milestone this weekend, we actually spent time making parts for a robot we're trying to get ready before the end of the month. For a short while it was even like a normal CNC shop where we are popping...
I had absolutely no intention of posting this on Hackday. It's a small one-day hack (well, two-day, if you count the time waiting for the epoxy to dry) that piggybacks on all the other blinkylight fun I've had. New code? Nope; I'd already abstracted...
This tutorial uses the Hexabitz modular hardware system to create an all-in-one plant monitoring and watering system. Automate your way to happy plants 😀🪴 Hardware: Load Cell Sensor (H26R0x): H26R0x is a load cell (strain gauge) sensor...
Not a moment has gone by that I've been considering various solutions to the 14V rail problem. The previous plan was going to involved a simple charge pump to provide the input voltage to the 14V LDO. The current LDO being used has a max input voltage...
My father has put me on the task of converting an old Husqvarna GT2254 riding mower to electric power. Mostly so he doesn't lose the zero-turn in the pond behind his house. The yard is fairly big, and even with a 54" deck, requires at least 3 hours...
I decided to split the DDL02 documentation into multiple parts because I want to get something out there, but have to fix up some of the material before I post it all. When I developed the board, I wasn't very good about consistent part designations...
15/10/2023, 09:49, Sunday. Well, good morning. I was planning on making this project log on 26 of november, which would be the 1 year anniversary of this waste of time of a project. But I will make this now because I need to take this...
***SCOPE*** We want to provide a very cost efficient control unit which is capable of tracking solar panels to the sun with a high precision even with imprecise solar tracker mechanics. In particular it tracks concentrator photovoltaic (CPV) modules...
Due to the TeTwin switches, each row can have 11 combinations. 000 = no key in each of the 3 finger rows are pressed. AAA = all 3 fingers are pressing their respective bottom key to the second actuation point. 0123456780-2A[nothing]CFILORUX3-5AADGJMPSVY6-8ABEHKNQTWZ...
So if you've seen damn near anything I've done for the last 18 months then you've seen examples of using Reverse Mount LEDs and also manually mounting LEDs upside down. A sample of my projects from 2018, all using reverse mounted LEDsReverse Gullwing...
I needed a way of remotely monitoring the temperature and relative humidity in a greenhouse used by my local garden club. We grow and graft tomato plants for our annual plant sale. Careful control of the T and RH is helpful to insuring the success of...