Si.
Newbie level 6
A great project book. Have a look: **broken link removed**
Chapter 01. Coil Gun
Chapter 02. Trebuchet
Chapter 03. Ping Pong Ball Minigun
Chapter 04. Mini Laser Turret
Chapter 05. Balloon-popping Laser Gun
Chapter 06. Laser sight
Chapter 07. Laser Intruder Alarm
Chapter 08. Persistence of Vision
Chapter 09. Covert Radio Bug
Chapter 10. Laser Voice Transmitter
Chapter 11. Flash Bomb
Chapter 12. LED Strobe
Chapter 13. Levitation Machine
Chapter 14. Light Seeking Microbot
Chapter 15. Surveillance Robot
Chapter 01. Coil Gun
Chapter 02. Trebuchet
Chapter 03. Ping Pong Ball Minigun
Chapter 04. Mini Laser Turret
Chapter 05. Balloon-popping Laser Gun
Chapter 06. Laser sight
Chapter 07. Laser Intruder Alarm
Chapter 08. Persistence of Vision
Chapter 09. Covert Radio Bug
Chapter 10. Laser Voice Transmitter
Chapter 11. Flash Bomb
Chapter 12. LED Strobe
Chapter 13. Levitation Machine
Chapter 14. Light Seeking Microbot
Chapter 15. Surveillance Robot