Timeline for Approaches to a few thousand individually addressable widely dispersed LEDs
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 27, 2011 at 22:49 | comment | added | supercat | ...one of which increments by 1 the address of relayed packets, and one of which shifts it left by 4 bits or so. Combine those and one should be able to set up a variety of interesting topologies. | |
| Dec 27, 2011 at 22:47 | comment | added | supercat | The advantages of the 1-Wire chip would be (1) they are factory-programmed with unique serial numbers; (2) they are supposedly ESD-hardened, to an extent greater than I would expect for most microcontrollers. Otherwise, a microcontroller would seem a really good approach. If one uses unidirectional communication, the wiring should be pretty easy, either with all units on a bus, or with each unit having an input and one or more outputs which 'tweaks' the input somehow. A fairly simple approach might be to have two daisy-chain outputs... | |
| Dec 27, 2011 at 21:29 | comment | added | captncraig | I like this. Even the most simple pics should be able to handle an led, a button, and 3-4 wire communication bus. If 1 mcu per led is too expensive I am sure you could get it down to 1 mcu per 8 or so without too much sweat. The hardest part is still programming each to know its "address". Not impossible, just time consuming. Maybe a button to store the next address that comes down the bus or something, in combination with a barcode scanner. | |
| Dec 27, 2011 at 2:37 | history | answered | supercat | CC BY-SA 3.0 |