Posts

Showing posts from May, 2013

Animated gifs of some food prep.

Image
Animated gifs of some food prep. White sauce (with spinach and mozzarella cheese) pizza topped with turkey bacon. Italian tostada (corn tortilla comvered with lentils, mozzarella cheese, salad, and fruit) Baked chickent. Good old version of a piadina. Bruscetta

Thanx!

Thanx to everyone who comes to http://www.meetdageeks.com/ . Also a thank you to those who go to www.instructables.com/member/computothought/ . for the second month in a row we have 30,000+ views.

Easy PC oscilliscope

Image
Just a beginner at electronics.   Before you spend a lot bucks on equipment, check out this free pc ocilliscope: Details at: http://www.instructables.com/id/Simple-PC-oscilliscope/

Easy PC oscilliscope

Image
Just a beginner at electronics.   Before you spend a lot bucks on equipment, check out this free pc ocilliscope: Details at: http://www.instructables.com/id/Simple-PC-oscilliscope/

Mom's autoharp.

Image
Mom use to have an autoharp. She would play it once in a while. Kind of missed that old thing. Did not want to go out and purchase one. Saw a minimal bash script to let a linux box with sound emulate an autoharp. I modified that script to do a bit more.  It only has a few chords, but it is the most I will need for a while. Working on a super version, Just like a regular autoharp, all you have to do is press a key for the chord sounding. Use it. (super simple example): On Top of Old Smokie    Old (C)On top of old (F)Smokie, all covered in (C)snow, I lost my true (G7 3)lover, by courtin' too (C)slow (C)on top of old (F)Smokie, I went there to (C)weep For a false hearted (G7)lover, is worse than a (C)thief (C)A thief he will (F)rob you, and take what you (C)save But a false hearted (G7)lover, will put you in your (C)grave (C)On top of old (F)Smokie, all covered in (C)snow I lost my true (G7)lover, by courtin' too (C)slow (C) They'll hug you and (F)kiss you,

Powering the Raspberry Pi.

Image
Warning: Do this at your own risk.  We will not be responcible for any or all issues.  Chances of electrocution causing death can occur. Get a professional to help before you start this project if you are even the least bit unsure. Wanted to make a Raspberry Pi where I could have several units in one case. Putting several power supplies in one box seemed like a mess. Instead I decided to use an old "AT" (not atx) power supply. I did not want to cut up the cable from the power supply. I looked for a dead motherboard in the junk box. There was one! Now, had to get out the old heat fun (used for paint removal. Most "AT" motherboards are attached to the pc like this: But if you have a dead motherboard it will not need the Power supply header anymore. So the mother board looked like this: Now we want to add heat to the back side of the motherboard to release the header. Be careful as it is HOT. Solder could come flying and burn you. Wear protective clothing. Then once th

Soldering iron: a tech's best friend.

Image
A soldering iron can be a tech's best friend. You never know when you need to repair an electrical connection. You can actually do a whole lot more, You can rescue parts for reuse. You can build your own simple test equipment. You can even build your own projects. You do not have to get a fancy soldering iron at first, but later as you gain experience, You may certainly want one. You also will want to learn about electronic symbols so that you can understand at least simple schematics. One of the first pieces of test  equipment I ever made was a continuity tester. What is that? it is a tool to see whether a wire cam make a complete circuit.  There are no breaks in the wire. Most of what I do is low voltage, so parts are not that critical. To make the continuity tester, I rescued a battery holder (from the motherboard) and an led from a dead computer. Saved a few bucks right there. So a soldering iron can get you free parts! The continuity tester is just a ba

Listen up industry,

Was not so long ago that when you bought a piece of software, you had to agree to the license, The license was sealed in the package the software came in. To furthermore complicate the sale, written on the outside of the package had a notice that if you opened the package it was not returnable. These were known as shrink wrap agreements. The public who thought this was unreasonable quit purchasing software. The industry claimed it was because people were illegally copying the software. Though that might have been partially true. The real reason for the sales slump was that you could get what was known as freeware that in a lot of cases was as good as the commercial products. Freeware did not have shrinkwrap agreements. The public took the industry to court and had the shrinkwrap agreements invalidated and even made illegal in a way. At the same time, software known as word processors (aka electronic typewriters) were very popular software. The only problem was that if you created a doc