The useless machine is a simple box with a switch and motor, when you turn on the switch the lid opens and the arm swings out and turns off the machine and then retracts. It is so simple but brings a smile to the face of everyone that tries! The Useless Machine was not created [...]
Building my very first 3D printer was quite traumatic and time consuming but also fun and rewarding! I don’t suggest building your own unless you have a love for tinkering, and making. There are some other qualities that will come in handy such as tendency’s for hacking, electronics, and [...]
I’ve seen videos on YouTube using an Arduino and a Graphical LCD screen (GLCD) to create a simple Oscilloscope. The annoying thing is that I found no help whatsoever on how to build one. I spent a few days figuring out how to use the Nokia 3310 LCD screen and then figuring out how to [...]
As a follow up to my DIY Arduino Oscilloscope video or as a stand alone tutorial, this video should help you understand arrays and recursion in Arduino. You can find the original post here: DIY Arduino Oscilloscope with the Nokia 3310 GLCD screen
An array is like a variable in that it stores [...]
I had a need for a temperature scanner to troubleshoot overheating on my Duramax LB7 pickup while towing. A commercial solution to collect 6 temperatures may have run me over a thousand dollars so I ordered some thermistors and for about 40 bucks in parts made one myself.
Parts include an [...]
As it is getting cold again and my chickens made it through the summer just fine, it is time to revisit and revitalize my automatic chicken door.
The older model was a large door that slid on a track that would get leaves, snow, and ice messing the whole thing up. Also the mecanisim that [...]
In this video I show how to connect a servo to an Arduino and also how to load the sample servo programs included with the Arduino software. The sweep program will drive the arm of the servo back and forth while the Knob program will move the arm of the servo when you turn a [...]
An attempt to make a good solar reflector out of mirror pieces and a Direct TV satellite dish. If I had it to do again I would have had an actual glass cutter and cut 1” squares…
Adding a solar panel to a RV can provide convenient daily battery maintenance and can extend power available while camping away from civilization.
Solar Kits or having one installed can be very costly. As I have not found any help regarding do it [...]
Here I show how to create some usable electricity from a candle and a peltier cooler.
Materials include a candle, metal plate, four nuts, four long bolts, a peltier cooler, heat sink, and thermal grease.
The heat sink was raided out of a Pentium four computer. The peltier cooler was [...]
LCD screen backlights can often go out requiring a new inverter or CFL lamp. Replacement parts can be hard to find or costly. Here I use a six dollar LED strip to replace the CFL backlight with success! If you look hard you can see points of light where the LEDs are but all together [...]
Here is my homemade function generator that can produce a square, triangle, and sign wave. This is all done with a few bucks worth of parts. The heart of the function generator is a LM324N quad OpAmp. I got the schematic off of a site where they were also selling kits to build the [...]
I needed to create an IO simulator for testing a PLC (Programmable Logic Controller). I pieced together a useful tool to do the trick of simulating analog and digital input and output that was expected from sensors in the real world.
This simulator can be used with any electronic device that [...]
I used a ST7565 GLCD (Graphic Liquid Cristal Display) screen to display the live analog readings from an Arduino.
Here is the Arduino library: ST7565_GLCD_LIbrary.zip
The ST 7565 I picked up on Adafruit for about 16 bucks. I couldn’t find any examples to help [...]
There are many advantages of having an automatic chicken coop door. The door will automatically close at night when the chickens are inside and open in the morning. Not only will they stay warm and cozy, critters like coons and skunks will have a much harder time getting to them. The ultimate luxury to me [...]
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