Circuit-Zone.com - Electronic Projects
Posted on Tuesday, April 22, 2008 • Category: Robots
The robot is controlled by a NXT-G program that listens to Bluetooth messages that tell it what to do. Normally, the commands are movement commands. These commands control the speed of the robot, whether it will go straight or turn left or right, or whether it will stop. It can also receive a command to do a radar-style scan with the ultrasonic sendor. When it gets such a command, it stops moving, and performs a sequence of ultrasonic measurements while rotating the sensor. It sends these measurements, along with data about what angle the sensor was looking at, back to the PC. When the scan ends, the robot starts responding to movement commands again.
Posted on Tuesday, April 22, 2008 • Category: AVR
In this project I created an infrared (IR) link that provides bi-directional communication between the NXT and the new Power-Functions system, which consists of a battery box, motors, a remote control (an IR transmitter) and an IR receiver that controls the motors.
I previously built an IR transmitter for the NXT which used an MSP430 microcontroller and which was able to send Sony IR commands (the specifications of this protocol are widely available).
Posted on Tuesday, April 22, 2008 • Category: Remote Control
This is an 8 Channel RF Remote Transmitter and Receiver that will allow to remotely control various electronic projects. RF Remote Control provides 2 latched and 6 momentary outputs that could be used to control your favorite devices such as amplifier, robotic devices, RC cars, computer, home appliances, lamps and many other cool gadgets.
Posted on Sunday, April 20, 2008 • Category: Remote Control
This is an assembled 4 Channel RF Remote Transmitter and Receiver with an impressive 200m range. Is simple to connect and it will allow you to remotely control various electronic projects. RF Remote Control provides 4 momentary outputs that could be used to control your favorite devices such as amplifier's volume control, selection of audio sources, wireless light control, light dimmers, robotic devices, motors, RC cars, computer, home appliances, and many other cool gadgets. If required momentary outputs can be easily converted to toggle with 4013 digital low cost IC.
Posted on Sunday, April 20, 2008 • Category: FM Transmitters
Now you can use your MP3 Player to listen your favorite tunes through any FM stereo receiver. Wireless FM transmitter wirelessly connects portable music players to your car or home stereo quickly and easily. Just plug the FM Transmitter into the headphone jack of your MP3 or any audio source including iPOD, PDA, CD Player, Cassette player or connect it to your PC or laptop computer. Tune your card stereo or receiver to the clearest FM frequency, and enjoy your digital music with full sound and convenience.
- PLL tuned transmitter / exciter for rock solid frequency stability over the entire FM band
- Displays Transmitted Frequency on blue backlighted LCD
- 100KHz frequency increments
- Includes three frequency memory buttons
- PCB includes antenna output to which a piece of wire, or standard VHF amplifier can be connected for greater transmission range
- Uses PLL synthesizer chip up to 1.4GHz
- Includes 3.5mm audio jack cable
- Small size
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