67 lines
2.0 KiB
Plaintext
67 lines
2.0 KiB
Plaintext
BACKGROUND
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---------------------------------------------------------
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The UDP led device type can be used to send LED data over UDP packets.
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It was originally designed to support an ESP8266 Wifi module based WS2812
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LED strip controller.
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I've used this to support :
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- A string of 600 LEDs as xmas decorations
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The effects development kit is great for these scenarios
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- a 61 LED collection of concentric circles
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This has been used as a "night light" and a super lo-res
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TV
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In each of these cases, the hyperion-remote iOS app is a great way to
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control the effects.
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CONFIG
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---------------------------------------------------------
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Simple example for devices that support a raw binary protocol.
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"device" :
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{
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"name" : "MyPi",
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"type" : "udp",
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"output" : "esp201-0.home:2391", "protocol" : 0,
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"rate" : 1000000,
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"colorOrder" : "grb"
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},
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If you are using an ESP8266/Arduino device with a long LED strip, you chould use this alternate protocol.
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The ESP8266/Arduino doesnt support datagram re-assembly so will never see any udp packets greater than 1450.
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"device" :
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{
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"name" : "MyPi",
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"type" : "udp",
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// "output" : "esp201-0.home:2392", "protocol" : 2, "maxpacket" : 1450,
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"rate" : 1000000,
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"colorOrder" : "rgb"
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},
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PROTOCOL
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---------------------------------------------------------
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Simple UDP packets are sent.
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Packet Format protocol 0:
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3 bytes per LED as R, G, B
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Packet Format protocol 2:
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0: update number & 0xf;
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1: fragment of this update
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2: 1st led# of this update - high byte
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3: 1st led# of this update - low byte
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4..n 3 bytes per LED as R, G, B
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Packet Format protocol 3: (simple TPM2.net implementation)
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0: 0x9C
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1: 0xDA
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2: number of databytes (leds * 3) - high byte
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3: number of databytes (leds * 3) - low byte
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4: fragment number (1-255)
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5: number of fragments (1-255)
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6..n: 3 bytes per LED as R, G, B
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n+1: 0x36
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