Redeem Your Irresponsible 90s Self

If you were a youth in the 90s, odds are good that you were a part of the virtual pet fad and had your very own beeping Tamagotchi to take care of, much to the chagrin of your parents. Without the appropriate amout of attention each day, the pets could become sick or die, and the only way to prevent this was to sneak the toy into class and hope it didn’t make too much noise. A more responsible solution to this problem would have been to build something to take care of your virtual pet for you.

An art installation in Moscow is using an Arduino to take care of five Tamagotchis simultaneously in a virtal farm of sorts. The system is directly wired to all five toys to simulate button presses, and behaves ideally to make sure all the digital animals are properly cared for. Although no source code is provided, it seems to have some sort of machine learning capability in order to best care for all five pets at the same time. The system also prints out the statuses on a thermal printer, so you can check up on the history of all of the animals.

The popularity of these toys leads to a lot of in-depth investigation of what really goes on inside them, and a lot of other modifications to the original units and to the software. You can get a complete ROM dump of one, build a giant one, or even take care of an infinite number of them. Who would have thought a passing fad would have so much hackability?

Hack a Day 19 Oct 06:00

Arduino DS1302 RTC Alarm Clock

Hello, I wanted to share with you this little project, it's about a diy alarm clock based on Arduino UNO board and DS1302 RTC Module, you can setup the date and time by keyboard and also set the alarm for a specified time. I hope you like it. Hardware Needed For this we gonna need first an Arduin...
By: AYassineLebouiha

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Instructables 19 Oct 02:55

Coding Timers and Delays in Arduino

IntroductionDon't use delay( ) Using delay() causes your system to be stuck while waiting for the delay to expire. However replacing delays requires some care. This page explains in a step by step way how to replace Arduino delay() with a non-blocking version that allows you code to continue to run ...
By: drmpf

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Instructables 19 Oct 01:40

Adafruit’s HalloWing, an MCU Optimized for Halloween Projects

A feature-rich microcontroller especially designed for Halloween and other multimedia projects.

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The post Adafruit’s HalloWing, an MCU Optimized for Halloween Projects appeared first on Make: DIY Projects and Ideas for Makers.

Halloween Spiderbot

I built this project a few years ago and now I will update it to make it an instructable. This video is from the original Project 5 years ago. It is very easy to make, the measures are not critical and you can use any scrap material you have, a small servo, an Arduino and a few wires. What Do You ...
By: AndrésG62

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Instructables 18 Oct 20:05

DIY Arcade Joystick

This is an arcade joystick I made. The arcade joystick itself is made from scratch using micro roller switches, no pre-made arcade joystick module used before hand. I got this idea from someone in the 2016 Maker Faire Singapore, where I remembered someonedone the same thing, except way better than m...
By: Hackin7

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Instructables 18 Oct 16:23

Arduboy Shield

This is a shield for the Arduino Leonardo to convert it into an Arduboy.The Arduboy is an 8 bit, credit card sized gaming platform that makes open source games easy to learn, share and play. This shield would wire up the components (OLED screen, buttons, speaker) such that it would work like the Ard...
By: Hackin7

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Instructables 18 Oct 16:21

Popup Notification Dinosaur

There’s a lot going on our virtual spaces, and anyone with a smart phone can attest to this fact. There are pop-up notifications for everything you can imagine, and sometimes it’s possible for the one really important notification to get lost in a sea of minutiae. To really make sure you don’t miss that one important notification, you can offload that task to your own personal dinosaur.

The 3D-printed dinosaur has a rack-and-pinion gear set that allows it to extend upwards when commanded. It also has a set of LEDs for eyes that turn on when it pops up. The two servos and LEDs are controlled by a small Arduino in the base of the dinosaur. This Arduino can be programmed to activate the dinosaur whenver you like, for an email from a specific person, a reply to a comment on Reddit, or an incoming phone call to name a few examples. Be sure to check out the video below the break.

With this dinosaur on your desk, it’s not likely you’ll miss its activation. If you’d like something that has the same function but with less movement and more lights, there’s also a notification 3D cube made out of LEDs that’s sure to catch your eye as well.

3D wire bending with Arduino!

If you thought that automatic wire bending was solely the purview of expensive industrial machinery, think again. How To Mechatronics has come up with a bender that not only twists wire left and right, but can rotate to create three-dimensional shapes.

The heart of the system is an Arduino Nano, which controls three stepper motors for wire manipulation via DRV8825 driver boards. A servo motor is also implemented in order to push a piece of copper tubing into place to physically bend the wire. 

As noted, the device does have some trouble moving the wire when its straightening rollers are tight, but this likely could be perfected with a little more work. If you’d like to take a crack at it, code and build files are available here.

Custom Enclosures for Electronics and Arduino

After a year, I am back with another Instructable on creating custom enclosures for electronic projects and Arduino. In this tutorial I will be using a freeware CAD software called FreeCAD. The download link is here.Download Link: this tutorial I gonna tea...
By: GauravG91

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Instructables 17 Oct 14:52