The KY-012 Active Buzzer Module. The module consists of an active piezoelectric buzzer, it generates a sound of aproximately 2.5kHz when signal is high. Connection Connect signal (S) to pin 8 on…

  The KY-011 Two color LED module consists of a common cathode 3mm red/green LED. You can adjust the amount of each color using PWM, so we will use 2 PWM pins on…

  The KY-010 Photo Interrupter module consists of an optical emitter/detector. If the sensor is broken the LED is turned on.   Connection Connect the power line (middle) and ground (left) to…

  The KY-009 RGB LED Module can emits a range of colour by mixing red, green and blue. The amount of each primary color is adjusted using the PWM pins on…

The KY-008 Laser Transmitter Module consists  of a 650nm red laser diode head Connection Connect signal (S) to pin 3 on the Arduino and ground (-) to GND. Middle pin is…

  The KY-006 Buzzer Module consists of a passive piezoelectric buzzer, it can generate tones between 1.5 to 2.5 kHz by switching it on and off at different frequencies either…

  The KY-005 Infrared Transmitter Module consists of just a 5mm IR LED. It works together with the KY-022 IR receiver module. The Arduino IR Transmitter Module Keyes KY-005, emits infrared…

  The KY-004 Key Switch Module is a push button that will output a high signal when pressed.   Connection Connect the Power line (middle) and ground (-) to +5 and…

  The KY-003 is a magnetic switch based on a 3144EUA-S sensitive Hall-effect switch. If no magnetic field is present, the signal line of the sensor is HIGH . If a…

The KY-002 Vibration Shock Sensor This vibration detector switch is OFF in the normal state, when there is enough force then the switch is in an ON state Connection Connect the…