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Operating Voltage: 2
the most important step is to set the clock frequency with external resistor R1 and external Capacitor C1
This I2C complaint IC permits a maximum of 8 devices to share a common 2 wire bus
Raspberry pi as 7219 IC uses only 3 pins to connect with your controller and drives all 64 LEDs in the module
You can use this motor as a simple DC motor with a microcontroller like Arduino or Raspberry Pi by using a Motor Driver like L293D
MQ-135 Air Quality Gas Sensor Module M30 Operating Voltage: 2The MQ 135 Gas sensor can detect gases like Ammonia (NH3), sulfur (S), Benzene (C6H6), CO2, and other harmful gases and smoke. Similar to other MQ series gas sensor, this sensor also has a digital and analog output pin. When the level of these gases go beyond a threshold limit in the air the digital pin goes high. This threshold value can be set by using the on board potentiometer. The analog output pin, outputs an analog voltage which can be used to
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