Remote Sensor Monitoring by Radio with Arduino: Detecting Intruders, Fires, Flammable and Toxic Gases, and other Hazards at a Distance: Leithauser, Mr. David: 9781534640559: Amazon.com: Books
Amazon.com: FREENOVE 4WD Car Kit (Compatible with Arduino IDE), Line Tracking, Obstacle Avoidance, Ultrasonic Sensor, IR Wireless Remote Control Servo : Toys & Games