Inspired by an old Project14 Contest, Andy decides to make a jumbo-sized version of the WS2812B RGB LED. Not happy with the 10x and 20x prototypes he made, he decides to go bigger and make a 100x scale model of the LED. The project uses a WS2811 chip to control 3 power MOSFETs via a MOSFET driver chip. As the voltages and currents are higher than usual, calculations are needed to select the right heatsinks for the application.
Supplemental Content:
Bill of Material:
| Product Name | Manufacturer | Quantity | Buy Kit |
|---|---|---|---|
| Arduino Uno | Arduino | 1 | Buy Now |
| VOD3120AD Optically coupled MOSFET Driver | VISHAY | 3 | Buy Now |
| Power MOSFET, N Channel, 30 V, 150 A, 0.0038 ohm, TO-220AB, Through Hole | INFINEON | 3 | Buy Now |
| SK 400 37.5 SA Heat Sink, Square, PCB, Extruded, LED, 7.8 °C/W, 33 mm, 10 mm, 37.5 mm | FISCHER ELEKTRONIK | 3 | Buy Now |
| Through Hole Resistor, 100 ohm, 2 W | TT ELECTRONICS / WELWYN | 3 | Buy Now |
| Through Hole Resistor, 6.8 ohm, 5 W | MULTICOMP PRO | 3 | Buy Now |
| 1N4006G Standard Recovery Diode, 800 V, 1 A, Single, 1 V, 30 A | TAIWAN SEMICONDUCTOR | 1 | Buy Now |
| Heat Sink Compound, Highly Conductive, Silicone, Tube, 25g | SERVISOL – AAVID / BOYD | 1 | Buy Now |
| Screw Terminal 2 way | WURTH ELEKTRONIK | 1 | Buy Now |
| Screw Terminal 3 way | WURTH ELEKTRONIK | 4 | Buy Now |
Additional Content:
| Worldsemi WS2811 |
| 10W RED LED |
| 10W GREEN LED |
| 10W BLUE LED |
| Multistrand cable |
| MDF 6mm 500mm x 500xx (9) |
| 2 x 4 lumber offcut (4) |
| Paint |
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beacon_dave
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