OK,Designed bottom hat - Power board (Modified LiPo Rider and modified USB hub) with a place I beleive for small LiPo batteryTwo USB ports. mini USB for charging, a header for additional 2 ports, a battery connector and a connector for solar panel, header...
We still aren't going fast enough. It's time for MOAR MODS!Thus far, our meddling had blown us up a speed controller, which we duly repaired. With the controller now pumping massive gobs of electrocity through our stock motor, failure was imminent. The...
Starting another work session now. Ain't got much time, about 6-7 hours, and I don't feel all that energetic, but I hope I stil accomplish things today.One more usage for my system. I wrote a simple script using curl to login to my university wireless...
I assembled a little board with a display header and some buttons. It's for me to test GPIO drivers, as well as use for Arduino driver development and, afterwards, for my home automation Raspberry Pi. A 4-row screen goes well with it, and, since it's...
My weekend project was to actually build a board (with good connectors, which is much safer than having an unisolated wires directly from the car battery hanging right above the ground - which is pretty much everywhere in a car). SSSO I did build an...
It all starts here. The body is printed (along with a complete spare body with stronger arms). The M3 screws have been a pain to find locally. Had to resort to Ace Hardware. I will say the employee who worked with me to find the screws in their racks...
Ok. So let start:I'm not a linux guru. There are many favors of linux distribution, but I've just some experience with Ubuntu and Debian. In addition I usually not using any linux GUI.So when I start a linux based project, it means to install an Ubuntu.As...
Unless your parts are too small, then it has to change.After few weeks of trying to solder the chips correctly and get them working. I give up and re did the design of the PCB. This time with parts that didn't have 10 legs on 2,5mm^2 of space.Also i...
Hell no. Of course we wanted to be sure about this. We have a certificate from the university of Mekele which states that digitizing text books for the purpose of education is legal in Ethiopia. In Germany it is also allowed to digitize or copy books...
I give up, seriously! This be another rant... Seriously, when I was 15, I was so good at Intel/Windows/Linux systems that i was granted the highest-level admin privileges for a business with so many users MS-Outlook's contact-list system...
Received some needed parts at the end of the week. Male and female Luer fittings and some needles. I wasn't sure just what needle size I would be needing so I picked from the low middle of the offerings and got some 18G. I had to cut the sloped ends...
I added three more links that you might find interesting and might get the creative juices flowing. The more I work with the machine the more I like it. But it does have a few little things that need tweaked. One of those is in the changing of the tubing....
tl;dr:heureka, DGSN monitoring of 2m-band workswe have contacts with NOAA satellitescontact times matches super with simulations by GPREDICT (image above)crappy code is slow but monitors (on github) (image below)next step, weaker signal monitoring in...
Generally speaking, there are three broad categories of power plants in service today.You got your coal power. This is the most common source of energy in the world, and also the most harmful. Statistically speaking, you are probably using coal power...
At the end of our last episode, we had steering and drive control through the Raspberry Pi... just. But we'd gained it at the expense of some poor blown transistors and things weren't really going too well. It was time for upgrades. In this episode,...