Blinking LED Builder Step by Step / Technology & Fun / By sree Using TinkerCad place 3 AA cells and a mini Breadboard Place 555 IC and connect pins as shown Place 100 ohms resistor, LED and connect as shown Place 1k and 100k resistors and connect as shown Place 10uF capacitor and connect as shown Click the Simulation button to confirm that the LED blinks as shown above! Click the Simulation button to confirm that the LED blinks as shown above!