Elektor July/August 2007

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Table of Contents Elektor July/August 2007

• ‘Teaclipper’ Postage-stamp Programmer
  
• 12 V Bidirectional Motor Control
  
• 2.4 GHz Antenna for Robotics Vehicles
  
• 3 Amp PWM DC Motor Controller
  
• 3-A Wide Input Adjustable Switching Regulator
  
• A Robot That won’t Lose its Bearings
  
• A Robot with an Elephant’s Memory
  
• A/D Converter for Robots
  
• Alphanumski
  
• An Inclinometer for Your Robot
  
• An Obstacle Detecting Robot
  
• Antieu-robot
  
• Babybot
  
• Balancing Robot
  
• Bat’s Ear
  
• Bolo
  
• Catapult for Robots… or Other Uses
  
• Chaotic Firefllies
  
• Clap Controlled Switcher
  
• CMUCam1 Vision System
  
• Colour Tamer
  
• Compass Sensor for Lego Mindstorms NXT
  
• Complete Stepper Motor Driver
  
• Controlling Servos
  
• CO-Sensor
  
• Deep Discharge Protection for Rechargeable Cells
  
• DIY Wheels
  
• Driving Higher Power Motors
  
• Driving Stepper Motors
  
• Driving Stepper Motors: KISS
  Without using a special special IC
• Dual Battery
  
• Fast Charger for NiMH Batteries
  
• Football with Robots
  
• Formula Flowcode Buggy
  
• From Cassette Recorder to Robot Propulsion
  
• Hunter
  
• IR Close Object Detector
  
• IR Communications using a UART
  
• IR remote Control with the R8C
  
• LDO Regulator with Soft Start and Tracking
  
• Light Sensing with an LED
  
• Light-seeking Robot
  
• Lithium Charger
  
• Low2 Cost USB Demo Board
  
• LPC900 Programmer
  
• Mini Power Inverter
  
• Minimalist Motor
  
• MotorBox
  
• Multi-Purpose NiCd & NiMH Charger
  
• New Lego MINDSTORMS NXT Motor Block
  
• Optimised STK200/300 Programmer
  
• Paralleling LiPo Batteries
  
• Philips ME Construction Kits
  
• PIC Indicator Relay
  
• PIC or Basic Stamp IR Telemeter
  
• PIC12C508 Stepper Motor Controller
  
• PIR-Sensor
  
• Positioning with Photodiode Arrays
  
• Propeller Prototyping Board for BoeBot
  
• PWM Voltage Dropper
  
• R8C Measures Negative Voltages
  
• Radio remote Control for PDAs and Smartphones
  
• Receiver for RC5 Remote Controls
  
• Removed Pulse Detector
  
• Robot Footballer
  
• Robot MOPS
  
• Robot voice
  
• SatNav for Robots
  GPS-Steuerung für Fahrroboter
• Sensor for Line Following Robots
  
• Serial interface for the Propeller
  
• Servo Control from a PC
  
• Servo to Motor Conversion
  
• Simple D/A Converter for Robots
  
• Sound Activated Switch
  
• Stepped Volume Control
  
• Stereo Robot Ears
  
• Switch-Mode 555 Supply
  
• Torque is Cheap
  
• Trembly
  
• Tribot
  
• Ultrasonic Distant Object Detector
  
• USB Converter
  
• Voltage Stabiliser
  
• Walking Works!
  
• Which Brain for my Robot?
  
• Whiskers on Robots
  
• Wireless Pulse Sensor
  
• zBot: 10-A Power Stage for DC Motor
  
• zBot: Solar/Battery Power Supply
  
• zBot: Wireless Link