DIY ADJUSTABLE FLASH LED CIRCUIT #diyflashLED #homemadeflash #LEDproject

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This is a DIY adjustable flash LED circuit that requires a few components including a BD139 transistor, a BC547 transistor, a 100k potentiometer, a 740uf/25v capacitor, and a 220ohm resistor. The circuit can be easily assembled on a breadboard or PCB. The LED flash frequency can be adjusted using the 100k potentiometer. The 4700uf/25v capacitor and 220ohm resistor are used to provide smooth current flow and prevent fluctuations. The BD139 transistor is used to drive the LED while the BC547 transistor is used as a switch to control the flash duration.