21st Century Sundial – The Combination of Ancient and Modern!

Although it’s already 21st century, but is nothing wrong to build a sundial, isn’t it? If you think it’s impossible to combine the ancient and modern technologies together, then you should read on this article… As you can see on the above figure, this is the finest combination of the 21st century and ancient time technology! Go figure, what would be the ancient people say, if they found out this incredible 21st century sundial? Yeah, they might be impressed of it! This project is built around an Atmel Attiny24 with crystal for better accuracy. The internal RC oscillator could be calibrated, but the precision can be easily achieved from crystal quartz! The whole project is quite simple, as you’re only need these following components, which as: Micro with Crystal and capacitors, The LASER, The transistor, The servo, and The power supply. The 21st century sundial project should be placed on the open space, especially on the white color wall, as the LASER is mounted on a RC servo and being projected onto the wall by a microcontroller. The microcontroller is… Continue reading

DIY an Arduino Mousecatcher by Yourself!

Honestly, each of the household will at least have several types of pests, such as flies, mosquitoes, ants, termites, cockroaches or even mouse. It would be terrific, if your home were free from any types of pests, which is sound totally impossible! For those that being disturbed by the nasty rodent species, you might be very frustrate, especially when the mouse starting to violent in your house and bite everything, including your favorite clothes and sofa set! You’re really pissed off with this situation, and you want this nightmare to be gone away as soon as possible? Well, in this case, you might need some little help here. If you’re happened to be one of the dedicated home hobbyists, then this Arduino mousecatcher is what you’ve looking for… This Arduino mousecatcher is based on an Arduino, a servo and some other components. The main body of this catcher is made from two plastic Tupperware type containers. If the mouse enters the lower container to eat the food, a small tripwire signals the Arduino to activate the servo. There is a… Continue reading

The Coolest Arduino Entry System Without Using Any Keys!

The economy has currently fallen in the slump and there are over million of people all around the world loss their job, due to this economy crisis! Every time when the economy is moving in downward position, the criminal rate will be accelerated in opposite way and it’s going to be skyrocketing. That’s why most of the citizens like you will live in cautious and frightening of being robbed all day long. Instead of living in fear and unsecured condition, why don’t you do something to overcome the problem? Yep, all you need here is a keyless entry system. Basically, this keyless entry system is using the Arduino. Some of the components that will be used in this project are a high-torque servo (You should better choose the Hitec HS-705MG, which it only cost you about $30) and a microcontroller to engage the servo when the correct pattern is inputted. To make this project even more fun, you might consider using a secret knock detected with a piezo on the inside of the door, but the knocking can be heard… Continue reading

Feel the Difference with Servo’s Joystick Control

Have you ever inspired by any walking servo or pixel rocket before? Did you have the urge to build a similar or even better prototype for yourself? Since the servo is the easiest to be controlled, you should try to manipulate it into your joystick control. Yeah, your task for today is to create a simple joystick control with a servo over a USB connection. Let’s start with the hardware part first, and what you need to do is: You need to make sure that the JR Sport ST47 standard servo is wired directly to Arduino’s 5V power and ground. Also, connect the servo’s control wire to Digital pin #2. The Arduino and the standard USB joystick need to be connected to a PC with a USB cable as well. The software part includes a Python script (Interpreting inputs from the joystick) and the Arduino sketch. A common joystick normally has six different axes. The Python’s responsibility is to sense inputs from each axis, and then print the values of stick positions. The joystick axis will reports a range of… Continue reading

Interactive DIY Infrared and Ultrasonic Scanner

You always dreaming of own a scanner that can scan with infrared and ultrasonic, like those you’re normally watching in the movies? Kill the daydreaming and start to make yourself an interactive infrared and ultrasonic scanner. Here is a scanner that can scan a 180 degree area from 5 to 21 inches away, and will display the information on a color LCD. Continue reading