The KY-019 5V relay module   Songle SRD-05VDC-SL-C Relay Relay UL/CUL Rating: 10A @ 125V AC, 28V DC Relay CCC/TUV Raiting: 10A @ 250V AC, 30V DC Control high-power devices…

  The KY-018 Photo resistor module consists of an LDR A photoresistor (or light-dependent resistor, LDR, or photocell) is a light-controlled variable resistor. The resistance of a photoresistor decreases with increasing…

The KY-017 Mercury switch module is a switch when tilted the mercury in the switch will touch metal contacts and the output will go high   Connection KY-017 Arduino S Pin…

  The KY-016 3-color LED module. The KY-016 RGB LED module consists of a tri color LED, you can adjust the intensity of the three primary colors (red / blue /…

The KY-015 Temperature and Humidity Sensor Module is based on the DHT11 DHT11 digital temperature and humidity sensor is a composite Sensor contains a calibrated digital signal output of the temperature…

  The KY-013 Analog Temperature Sensor Module uses a thermistor to measure ambient temperature based on the resistance of the device. The temperature sensor is a NTC thermistor Multi-point temperature measurement…

  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…