Lab Inventory: LED, Lighting, Laser¶
The following tables may help you identify optical output parts we have available in the lab supply.
For a searchable index of all lab parts, please see Physical Computing Lab Inventory.
Light-Emitting Diodes (LEDs)¶
The lab stocks a variety of individual single-color LEDs in breadboard-compatible 3 mm and 5 mm packages. Each will need a ballast resistor to reduce the supply voltage to the operating voltage; the precise voltage and resistor value depends on the LED chemistry and color.
Lab Part # |
Description |
|---|---|
LED, red, 5mm, 620 630nm, 2.8 3.1V, 20mA, 4000 5000mcd |
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LED, yellow, 5mm, 580 590nm, 2.8 3.1V, 20mA, 4000 5000mcd |
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LED, green, 5mm, 520 530nm, 3.0 3.4V, 20mA, 12000 14000mcd |
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LED, blue, 5mm, 460 470nm, 3.0 3.4V, 20mA, 5000 6000mcd |
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LED, white, clear lens, 5mm, 5000 6200nm, 3.0 3.2V, 20mA, 12000 14000mcd |
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LED, red/green (two color), diffuse, 5mm |
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LED, red/green, diffuse, 5mm, drive in opposite directions for different colors |
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LED, purple, UV/UVA, clear, 5mm, 400nm, 3.3V, 20–25mA, 3,500mcd |
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LED, infrared, 5mm, 850nm, 1.5V forward drop, 20mA max. forward current |
NeoPixel LEDs¶
NeoPixels are digitally-controlled RGB LEDs which follow the WS2812 three-wire protocol (power, data, ground). These use a single self-clocking data line which operates at a fixed 800 kHz rate. NeoPixel parts are most often 5V, but 12V versions do exist.
Lab Part # |
Description |
|---|---|
8 NeoPixel stick with 8 5050 RGB LEDs |
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12 NeoPixel ring with 12 5050 RGB LEDs |
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16 NeoPixel ring with 16 5050 RGB LEDs |
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24 NeoPixel ring with 24 5050 RGBW LEDs, warm white |
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NeoPixel strip, 60 LEDs/meter, 5V, black PCB |
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Flora NeoPixel, individual RGB LED on PCB |
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Smart NeoPixel, individual RGB LED on breakaway PCB, breadboard compatible |
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5mm NeoPixel, diffuse, 5V, single-pin-control, 24-bit color |
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8mm NeoPixel, diffuse, 5V, single-pin-control, 24-bit color |
WS2801 LEDs¶
Digitally-controlled RGB LEDs which follow the WS2801 four-wire protocol (power, clock, data, ground). These use separate clock and data much like SPI and can operate at varied data rates up to to 25MHz.
Lab Part # |
Description |
|---|---|
12mm Diffused Thin Digital RGB LED Pixels (Strand of 25) - WS2801 |
We have also previously stocked various WS2801 flat strips, now discontinued.
Lasers¶
Laser diode, 5 milliwatt, 5 Volt, 650 nm (red). Draws a visible dot. Intended for long-distance through-beam sensing or laser show displays. Lab Part 0778.
Lab Part # |
Description |
|---|---|
Laser diode, draws dot, 5mW, 5V red laser, 650nm (red) |
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Line drawing laser diode, focusable, 5mW, 3-5V Adjustable, 650nm (red) |