Juice for running the whole show comes from a bank of eight, large type “D” cells wired to provide 6 V - enough to keep Moo-Bot fed for at least a couple of months.Ĭheck out the video after the break to hear Moo-bot tell some cow jokes – it’s pretty funny. The Arduino also triggers some lights around the Moon. Its two OLED screen eyes open up, and the MP3 player sends bovine sounding audio clips to a large sound box. Moo-Bot has an Arduino brain which wakes up when the push button on its mouth is pressed. To make Moo-Bot easy to transport from barn to launchpad, it’s broken up in to three modules - the body, the head and the mounting post with the moon. Finally, the whole cow is skinned using sheet metal and finished off with greebles to add detailing such as ears, legs, spots and nostrils. And since it is installed in the open, its skin also doubles up to help Moo-bot stay dry on the insides when it rains. The insides are then gutted with all of the electronics. The skeleton is built from lumber slabs and planks. And since he had not seen any interactive scarecrows at earlier festivals, he decided to give his jumping cow a lively character.Ĭonstruction of the Moo-Bot is broken up in to three parts. When heard his 3-year old son sing “hey diddle diddle, the cat and the fiddle…”, he immediately thought of building a cow jumping over the moon scarecrow. One of the festival’s theme was “Out of this World” for space and sci-fi scarecrows. ’s blog is peppered with delightful prose and tons of pictures, making this an easy to build project for anyone with access to basic carpentry and electronics tools. We’re not sure if Moo-bot will win the competition, but it sure is a winning hack for us. built Moo-Bot, a robot cow scarecrow to enter the competition at a local scarecrow festival. Posted in Arduino Hacks Tagged dog, POV, speedometer POV displays can be leveraged to add pizzazz to any project - this CD-ROM POV clock and this wind-powered POV weather station come to mind. The character data are stored in arrays that are played back directly to the pins of PORTD - avoiding most of the usual Arduino-style complexity with pin definitions and other foolery. ’s code does only what it needs to get the job done. Each number is flashed at a different speed, so you just look for the least distorted numeral. Because of this spatial offset, the patterns flashed out only “look right” at the right speed. Instead of putting all of the LEDs in a line, they are arranged in a V-shape. ![]() How do you know your pup’s loping speed? That’s the beauty of this project. Using an Arduino (looks like it might be a D-love) and a line of 5 LEDs, built a dirt-simple POV - 39 lines of code - that times out the flashes so that an immobile viewer sees the dog’s speed. ![]() Built an elegantly simple Dog Speedometer project that uses a POV display to display a running dog’s speed without the benefit of an accelerometer.
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