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Table of Contents Elektor April 2010

• 1- and 4-cilinder motors from trashed hard drives
  Burn or Turn?
• 5 V Power Controller
  Battery operation from 2 V to 8 V
• A Fast Charger
  Turn a low-cost SMPS into a battery charger
• A musical electronic lock
  Beep, beep… Sesame
• A voltage booster using Arduino
  Design Tip
• Bluetooth for OBD-2
  OBD Analyser NG goes wireless
• CO2 Meter under test
  E-LABs INSIDE section
• Corrosion fighter spray
  E-LABs INSIDE section
• Fun with Fireflies
  Grass-roots artificial intelligence
• G4WIM 24cm ATV Transmitter (1994)
  Design Tip
• Grasping the Sceptre
  Software library for easy programming
• Guests in the Lab
  E-LABs INSIDE section
• Hexadoku April 2010
  Puzzle with an electronics touch
• Mailbox April 2010
  
• Measuring Tweezers
  Special tools for measuring SMD components
• Small is Beautiful: Minimod18
  A new microcontroller board for Elektor ATmega projects
• Super Robots
  Myths, promises, threats and the here and now
• The making of the dsPIC board
  E-LABs INSIDE section
• UniLab
  A switch-mode 0–30 V / 3 A bench supply
• UV light box
  Design Tip