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…
Author
iainhendry
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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…
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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…
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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…
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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…
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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…