KY-034 7 Color Flashing LED Module

The 7 Color Flash KY-034 is a small electronic module that contains a 5mm color LED that flashes through a sequence of 7 colors: red, green, blue, yellow, purple, cyan, and white. The sequence is predefined and cannot be modified. The module is powered by a voltage of 3.3V to 5V, and it has 3 pins: VCC, GND, and NC. The VCC pin is connected to the positive voltage supply, the GND pin is connected to the ground, and the NC pin is not connected.

The module is easy to use and does not require any programming. Simply connect it to a power supply, and it will start flashing through the 7 colors.

There are two ways to power on the 7 color flash module:

• Connect VCC directly to +5v of Arduino or Raspberry Pi. This is the simplest way to power the module. Simply connect the VCC pin to the +5v pin on your Arduino or Raspberry Pi. The GND pin should be connected to the ground pin.
• Connect VCC to any of the available digital pins. This gives you more flexibility, as you can use the module in your Arduino or Raspberry Pi code. Simply connect the VCC pin to any of the available digital pins, and the GND pin to the ground pin.

Once the module is powered on, the LED will start flashing through the 7 colors. The sequence is predefined and cannot be modified.

Automatic Flashing Colorful LED Module is easy to use. It is really no different than using a standard LED. Simply hook up a digital output pin via a current limiting resistor to the VCC pin of the module and provide an logic HIGH signal to turn it on and logic LOW to turn it off as shown here.