Mars rover remixed and inspired by bolbots mars rover on Thinigverse. http://www.thingiverse.com/thing:1583399
The rover uses an Arduino 101 for brains, BLE for communication, and the Blynk app for remote control.
A Programmable Logic Controller, PLC or Programmable Controller is a digital computer used for automation of electromechanical processes, such as control of machinery on factory assembly lines, amusement rides, or light fixtures. PLCs are used in many industries and machines. http://en.wikipedia.org/wiki/Programmable_logic_controller
A HMI (Human Machine Interface) is the system by which people can interact with a machine. The user interface includes hardware (physical) and software (logical) components.
Here is a fun project you can do with your kids. It’s a project box with battery, switches, LEDs, vibrating motor, and whatever else you can come up with. it uses header pins and jumper wires to enable the user to connect circuits.
2. Use an additional printed carriage with Dual 623 V rollers currently around $80.00 after shipping…
My first 3D printer was a Prusa Mendel V2 Reprap, after seeing the speed and precision of my bosse’s Rostock Max and drooling over his Kossel mini I decided it was time to make another printer. (You can find my Prusa Mendel V2 Reprap post here) I have found that half the fun of 3D printing is building the machine… especially if you are the type that enjoys tinkering and fiddling with gadgets. I have also found that 3D printing is absolutely a hobby, though, I am to cheap to try some of the more out of the box printers that are developing nowadays. I am not sure if the urge to build things or my cut-rate pocket-book drive my DIY printing hobby more…
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 by me, it can be found in Make Magazine and in numerous Instructables and DIY articles online.
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 opened the door was a string that tension was held on with springs, the string would knot up and stop working, blowing the fuse sometimes.
Adding a solar panel to a RV can provide convenient daily battery maintenance and can extend power available while camping away from civilization.
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 the LCD is very usable.
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 signal generator.
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.
There are many advantages of having an automatic chicken coop door. The door will automatically close at night when the …
Here is my first ESC or Electronic Speed Control that I built with an Arduino Duemilanove. If you don’t already …
I searched for days trying to find a commercial sound localization sensor or info on how to build one. Sound …