T-Clock is a demo-application for Philips LPC2000 ARM7TDMI controller with a KS0108/KS0107-based graphics-LCD (128*64 pixels), DCF77 time-receiver and one wire bus (for DS18×20-Temp.-Sensor).
The time and date are received with a DCF77-receiver-module. The DCF77-signal is transmitted from a station near Frankfurt/Main, Germany and can be received all over Europe, North Africa and the Middle-East. Please visit www.ptb.de and ask google with “DCF77″ for more information. In times when the DCF77-signal is not available (i.e. thunder and lightning near transmitter) the RTC of the LPC-controller is used to drive the clock.
The clock also display the temperature measured trough a DS18×20 family sensor. he sensors provide the temperature in digital form on a One-Wire-Bus. The Maxim Web-Site has a lot of information on the One-Wire-Bus.
The whole project should cost you about 100 Euro’s, not cheap but a very good and interesting project for ARM microcontrollers.
T-Clock An ARM7 Controlled Blue LCD Clock: [Link]
Active-robots offer you the possibility to play with your own hi-tech robotic arm. The one I like it’s called The Lynx 5 and it can deliver fast, accurate, and repeatable movement. The robot features base rotation, shoulder, elbow and wrist motion, and a functional gripper. It’s made from ultra-tough laser-cut Lexan structural components, black anodized aluminum servo brackets, and custom injection molded components. The arm assembly has ball bearings for improved accuracy. The arm includes five Hitec HS-422 servo motors. One for the base, two for the shoulder, and one each for the elbow and wrist. An HS-81 is included for the gripper. The controlling of the arm is done by RIOS (Robotic arm Interactive Operating System) a Windows 95, 98, XP program. With RIOS, your robot can be taught sequences of motion via the mouse or joystick. The inverse kinematics engine makes positioning the arm effortless. This extremely powerful program uses external digital and analog inputs to affect the robot’s motion for closed loop projects. It’s available for about 450 $; for more information on this and other robot stuff you can visit they’re page at active-robots.com