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On 6/24/2025 9:49 AM, Don Y wrote:WS2812 LED chips do something like that. The first chip in the chainOn 6/24/2025 9:18 AM, Martin Rid wrote:By way of example, in the 70's, we would do "poor man's networking"CAN network?>
Each CAN node either needs a unique address to which messages can be
directed; *or*, to KNOW to listen for particular BROADCAST messages.
>
So, you either send a message to node 5 to do something
OR, you send a message about that something and expect
that node to know that *it* should process that message.
>
If all of the nodes are *identical* (hardware and software),
there is nothing to distinguish one device from any other.
by daisy-chaining IDENTICAL devices with serial ports:
HOST---->[]----->[]---->[]----->[]
(each set of brackets represents a device with its serial input
on the left side and output on the right)
If I pass a message (from the host) of the form "1xxxxxx", the
first device receives the message, notices that it begins with
a '1' and assumes it is meant for it; the message is absorbed
by that device.
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