These reverse - mount NeoPixel LEDs are a fantastic choice for your projects. When you need a flat PCB top or want to simplify manufacturing by using only one side for components, they're the perfect solution. Measuring just 3.1mm x 2.7mm x 1.7mm, these small yet bright LEDs can be soldered in a reverse - mount style using the top pads and a PCB cutout. Thanks to their long pads, hand - soldering them isn't a hassle. The built - in driver chip offers a constant current drive of about 12mA. This ensures consistent color even when the voltage fluctuates, and you don't need external choke resistors, leading to a minimalist design. Power them with 5VDC, and you're good to go. Each LED has red, green, and blue sub - LEDs. A tiny chip controls these RGB LEDs, taking 24 - bit color data via the clock and data input and handling all the PWM control for you. Just set the color data once. Like other NeoPixels, you can connect them in a chain, creating long strips. We use these in our NeoKey boards, where the LED shines through a PCB cutout, but there are numerous applications for reverse - mount LEDs. Note that a cutout is necessary, and the LED body fits inside it. The package includes 10 individual LEDs. Our detailed NeoPixel Uberguide has all the information you need to use NeoPixels of any shape and size, with ready - to - go libraries and example code for various Arduino models.
Using these NeoPixel reverse mount RGB LEDs is easy. First, make sure you have a PCB with the appropriate cutout. Place the LED in the cutout and solder it using the top pads. Remember, the long pads make hand - soldering easier. Power each LED with 5VDC. To set the color, use the provided libraries and example code in our NeoPixel Uberguide according to your Arduino model. You can chain multiple LEDs together by connecting the output of one to the input of the next. When handling the LEDs, be gentle as they are small and delicate. Store them in a dry and clean place to prevent damage. If you face any issues, refer to our NeoPixel Uberguide for troubleshooting tips.
