I\'m using 2N2222 pnjunction transistors from Radio shack. Connect the Arduino\'s pin connection to the bottom of the transistor (center pin). A resistor needs to be added between the pin line and the transistor center pin (see picture). Pin the collector (rightmost pin)to ground. Connect the positive lead of the LED wire to the 5 v of the power supply.
In addition to taking care of oily skin, using the right cosmetics and a healthy diet, one must meet with a doctor to discuss solutions to eradicate acne. You can use some oral drugs as a vitamin A derivative. There are local creams with the same chemicals as controlling acne development. Use acne creamA take action on this issue and destroy the root cause of it and make your acne --
Then you want to take the wires that we go through the structure of the lamp and the ones that we just go through the bottle and weld together. You will have a lot of spare wires after you weld them together. To solve this problem, just pull the wire from the other side of the lamp (