Automatic Liquid Mixer

This project is done by Justin and Austin who studies at Cornell University. This project doesn’t require any human interaction except placing the glass at the correct position to make a mixture of drinks. The user can select the required drink from up to 16 predefined drinks and then all he has to do is place the glass, the project will do the rest. They have used a bidirectional DC motor and solenoid valves to turn an ordinary Lazy Susan into a rotating platform system that could move a glass under inverted bottles and dispense liquids in a controlled manner, in order to make mixed drinks. A Atmega1284 MCU is used to control the liquid flow and its movement. The entire code is programmed using AVR studio and the language used is C. A feedback control loop and an IR sensor is used to track the position of the glass. The nozzles of the inverted bottles are attached to the valves, which are opened and closed by the microcontroller and hence used to control the flow of the liquid. A… Continue reading

Smart Visualizing Sensor Data with Arduino and Processing

Do you have passion on the robot development field? If you did, then this visualizing sensor data with Arduino and processing robot is going to bring you endless fun… In this project, you’ll know and understand the exactly way to combine the Arduino, sensors and the Processing environment to visualize real world sensor measurements. There are three main components that needed to be used for this project: an Arduino Diecimila, a standard hobby servo and a Sharp IR sensor. You can use the Version 0013 for the Arduino IDE and version 1.0.0 for the Processing IDE. As you can see through the above picture, an IR sensor has been mounted to a servo on the small yet cute robot. Several Sharp GP2Y0A21YK0F IR distance sensors need to be used, due to its inexpensive proximity sensor and the ability to sense objects from 10-80cm. The disadvantage of this sensor is it can only detect objects within a narrow beam. In order to overcome the downfall you can mount the sensors on the servo, so that you could pan the sensor approximately… Continue reading

Wiimote Firefighting Robot is Beyond Your Imagination!

Can you imagine what the robot is going to look like, if you build it with the Wiimote and I2C? Well, if you want to find out the truth, then it’s about time to have some real fun here… To be honest, this is a very cool project, where the Wiimote can be used to make a perfect control system for a firefighting robot. Don’t underestimate the Wiimote, as it able to send and receive Bluetooth commands instantly. Thus, many home hobbyists starting to use it, as it could be an ideal choice for low cost Bluetooth transceiver! Instead of the above feature, it also has IR sensor that can detect a candle and a Bluetooth transceiver to communicate back to a host computer. This means that the Wiimote will use the IR sensor to find the location of candle. It transmits the sensor reading back to the host computer over Bluetooth. For your information, the C program running on the host computer is reading the sensor data and sends command back through Bluetooth to the Wiimote. Since the Wiimote… Continue reading