I have to warn you this fix is not for the faint of heart! My Hp 3330 laserjet has been pushing paper for me for almost 20 years, without problems aside from every once in awhile changing the toner cartridge.About a week ago it would sit there making...
The factor keyboard was set up for scanning. I intend to fire off an interrupt when a key is pressed. This breaks my rule number 1: Do No Harm to the Equipment! But this piece of gear has been stripped before I got them. ( I have three of them. Good...
Design:
As an aircraft flies overhead, it receives radio signals in a 360 degrees circle around the aircraft. So these radio stations must be placed into a database, which contains the address of the main Db. This database must be updated every fift...
So what is wrong with ATR-poly?.What's right? It's Polyethylene. It's almost impossible to glue an FR-4 PCB to it. And it's not what you call stable. For those of you that did not know I moved last Labor Day. About 4 months ago when I...
Ok, am I a little harsh, maybe, but when you have a keyboard that you don't use very much, just think of the wasted CPU cycles scanning the Keyboard! I one minute, in one hour? So what to do? In steps our 8 input to 3-line, Priority Encoder TI SN74x...
Well, pigs fly! And I straightened both the back panel and the front panel. But alas I have miss laid the finished front trim panel.
So I'm going to resemble it without the outer front panel, and then do it all over again when I find the damn ...
Well, here we are again, the MAX6955 went down in flames as it will only work on LEDs. So we have to start over.The Analysis: The NCD is comprised of 4 groups: Display, Keyboard, Rotary Switches, and Thumb Wheel Switches. The Display is compris...
OK, last time I might have confused you with 2-level interrupts. So here it is and please refer to the schematic. So here's how it works. In this diagram, you see 4 switches 2 rotary and 2 thumbwheel switches. You will notice that each of the t...
Oh my lord back to this monster again. I took another look at what's really going on in this thing. Display SwitchMode SwitchThumb Switch 1Thumb Switch 2int 1int 2int 3int 4Keyboardint 5Communicationsint 0I have broken it down into functional sec...
Well Mr. UPS just showed up late today with a package from Element14 and tariq.ahmad. Now I wondered what could it be? So I ripped it open.Inside aside from propaganda Tee Shirt and Stickers, there was an Arduino Micro 5v, a Huzzh Feather, and two an...
This is what you might have in your house. A 200 amp main panel, with a sub-panel for your Basement. You will notice the four large breakers in the lower left of the main panel, One of them feeds the sub-panel. But there only separated by a few inche...
This photo is to show you what this person thinks a Smart House should be wired! And there is a ton of it. I don't consider this very smart! Rember in my last posts, I talked about smart wiring? So let us start with the Requirements for the Rooms...
In 2004, Kendall Grant Clark of www.XML.com, wrote a series of articles called "Hacking The Library" they where:Geeks and the Dijalog Lifestyle (Feb 8, 2004)The Library of Congress Comes Home (March 17, 2004)Six Steps to LOC@Home (April 28, 200...
On the benchTerminal SessionWell, I'm not done yet. I might be down. I need some more stuff for this project so off to Micro Center. And about 130 miles later. I started over from scratch here is what I did:* Please note: this information has come fr...
To give you all a refresher about NASA's EADIN Lite Communications Protocol, I was happy to embrace it.The problem is the downsides for me:Only an 8-bit payload.Before the Data Field, I need a Data Lenth Field of 1 byteEach board must be programmed f...
Well, the power and the cables are getting under my skin. So being in Dallas, I stopped at Tanners Electronics, and I solved my cooling issues and power which now includes a 12vdc fan. So this is what I picked up today. A Pace AC Adapter 115AC to 12v...
As much as l like Debian 9.x, I hate this jury-rigged Cloud 9 Interface. Just getting the BB AI on my network (static IP address) was a chore and way too many steps!
This took many hours of trial, blind alleys, and miss-steps, As there is NO network...
Well, this update has been more than a few days in coming, as I have been in network hell. I have made good progress, and I am working on programming currently. This was the first time I used a Polyprinter at my local library. The Tinkercad and...
Since you all know by now I have moved into AT&T Land. It was not nice their router was 192.168.1.1 which normally is my base network. I placed a Netgear N600 Gigabit router between my computer and the AT&T router (modem). ...
Well, here we are back at the ATC panel. The ATC panel function is to identify your aircraft to the tower via secondary radar. After a quick call to Gables Engineering in Florida. I explained what I needed and why they graciously sent me a print with...
Ok, you all know if you are keeping up, I scored a pair of B-737 rudder pedals on eBay for about 200 bucks. So the first thing I have to do is take the pedals apart and clean them. The parts diagrams and part numbers come from the Boeing...
Well, another day moving or should I say un-moving? I finally found most of my missing test equipment.
The list includes both of my Labda 'bricks' LXS-A-5-0V and my LM B15, an Acopian V48PT5AF rack-mounted 48 dc supply, Electronics Measure...
Well, I really can not contain myself. As you all know I moved back on Labor Day. And I am still moving! Well, today I found treasure!! I found my Gardner Denver WireWrap Gun (model 27100AB2) this gun has back-force so it is easier to wra...
