Discrete Addressable LEDs...
| Part Number | 601000200 | IN-PI15TAT5R5G5B | IN-PI20TBT5R5G5B | IN-PI22TAT5R5G5B | T3A33BRG-H9C0002X1U1930 | FZ2812-5050 | IN-PI554FCH | IN-PI55QATPRPGPBPW-40 | IN-PC55TBTRGB | LTST-E263CEGBK | 19-C47/RSGHBHC-5V01/2T | WS2812B-B/T | DY-S1515065/RGBC/6805-5T | SK6805-EC15 | SK6805-EC20 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Image |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Supplier Link | DigiKey | DigiKey | DigiKey | DigiKey | DigiKey | DigiKey | DigiKey | DigiKey | DigiKey | DigiKey | DigiKey | LCSC | LCSC | LCSC | LCSC |
| Colour | RGB | RGB | RGB | RGB | RGB | RGB | RGB | RGBW | RGB | RGB | RGB | RGB | RGB | RGB | RGB |
| Lens | Clear | Diffused | Diffused | Diffused | Clear | Clear | Clear | Diffused | Diffused | Clear | Clear | Diffused | Diffused | Clear | Clear |
| Package/Dimensions | |||||||||||||||
| Power Supply Voltage | |||||||||||||||
| Average Forward Current | |||||||||||||||
| PWM Frequency | |||||||||||||||
| Data Frequency | |||||||||||||||
| Protocol | 24bit serial GRB | 24bit serial GRB | 24bit serial GRB | 24bit serial GRB | 32bit serial BRG | 24bit serial GRB | 24bit serial GRB | 32bit serial GRBW | 32bit serial BGR | Unspecified | 24bit serial RGB | 24bit serial GRB | 24bit serial GRB | 24bit serial GRB | 24bit serial GRB |
| Data Lines | 1 GPIO pin | 1 GPIO pin | 1 GPIO pin | 2 GPIO pins | 1 GPIO pin | 1 GPIO pin | 1 GPIO pin | 2 GPIO pins | 1 GPIO pin | 1 GPIO pin | 1 GPIO pin | 1 GPIO pin | 1 GPIO pin | 1 GPIO pin | |
| Cost (for 256) | USD$58.37 | USD$58.88 | USD$58.88 | USD$75.06 | USD$64.00 | USD$72.27 | USD$78.59 | USD$78.59 | USD$78.59 | USD$98.25 | USD$98.25 | USD$16.41 | USD$22.41 | USD$34.92 | USD$38.22 |
| Remarks | Has internal decoupling capacitor | Two-wire synchronous control |
I would prefer the black WS2812B-B/T from LCSC over any of the white offerings from DigiKey due to colour/price considerations, except for possibly the IN-PI15TAT5R5G5B or the larger IN-PI20TBT5R5G5B—the price difference here isn't that extreme (compared to the comparable LCSC devices), and I would prefer to order from DigiKey due to shipping/order consolidation reasons. Also, the DigiKey devices are diffused, and the datasheets are in English.
But, I would actually prefer the all-black & black diffused LEDs that are available in a common anode configuration... these are also considerably cheaper from LCSC, eg USD$3 vs USD$30 for 256.
Also, individually addressable LEDs might be too easy... in the sense that they might be a bit too straight-forward to drive, making this project too easy.
Also, it'd mean that the board is effectively just the uC + LEDs + power, without needing anything other ICs for the matrix... I kind of want something more involved.
I'll compare some more common anode/cathode RGB LEDs in the physical packages I'm after, and see if I can figure out a nice way to drive them all.