✦ Step 1: Prepare all the part need in this videos: BC547 X1, 330ohms resistor 0.5W X1, RGB LED X1, 5V Buzzer, 220ohms resistor 0.5W X1.
✦ Step 2: Solder the BC547 and 330ohms resistor as showed in the pic below.
✦ Step 3: Solder the LED as showed in the pic below.
✦ Step 4: Solder the other pin of BC547 and 220ohms resistor as showed in the pic below.
✦ Step 5: Solder the pins of the buzzer as showed in the pic below.
✦ Step 6: Solder the jumper wire.
✦ Step 7: Connect it on to the power supply and the RGB LED is shinning, the buzzer is alarming.
『BC547』 ⇒https://www.utsource.net/sch/BC547
『330ohms resistor 0.5w』⇒ https://www.utsource.net/sch/330%CE%A9%20resistor%201%2F2w
『RGB LED』 ⇒ https://www.utsource.net/itm/p/8390302.html
『5V Buzzer』 ⇒ https://www.utsource.net/itm/p/8027482.html
『220ohms resistor 0.5w』 ⇒ https://www.utsource.net/sch/220%CE%A9%20resistor%201%2F2w
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