Features
WS2811 SPI AC Bulb and chandelier addressable decoder - Addressable Anything
This controller is designed to decode SPI (Serial Peripheral Interface) signals and control AC
loads, which is a significant distinction from typical DC LED controllers. It's likely used for
dimming or switching AC-powered lights or other appliances based on digital data input.
Key Features and Specifications:
● Type: SPI (AC) Decoder
○ The "AC" in the name highlights its capability to manage Alternating Current loads,
unlike the "DC" decoders that handle Direct Current.
● Integrated Circuit (IC): WS2811
○ While the WS2811 is primarily a DC LED driver IC (commonly found in addressable
RGB LEDs), its presence here suggests that the controller uses the WS2811 data
protocol to receive commands. The internal circuitry of this specific decoder would
then translate these digital commands into AC control signals (e.g., phase-cut
dimming, relay switching) for the AC load.
● Dimming Channel: Red Color
○ Similar to the previous DC decoder, this might indicate that the controller is
specifically designed to dim the "red" component in a multi-color AC lighting system,
or it could be a single-channel dimmer for a specific application where "red" is
highlighted.
● Maximum Load Output: 100 Watt
○ This specifies the maximum power (in Watts) that the controller can handle for the
connected AC load. It's crucial not to exceed this wattage to prevent overloading
and potential damage to the decoder.
Connections:
The decoder has distinct input sections for data and DC power for its internal operation, and
separate AC input/output for the load.
Left Side (Data & Controller DC Power):
● DC: 12-24V: This indicates the input DC voltage range (12 to 24 Volts DC) required to
power the internal electronics of the decoder itself. This is separate from the AC power for
the load.
● Data In (→): This is where the SPI data signal (or a compatible serial data signal using
the WS2811 protocol) is fed into the decoder.
● Data Out (←): This likely provides a data passthrough or a buffered output of the data
signal, allowing for cascading multiple decoders or other data-controlled devices.
Right Side (AC Power for Load & Output):
● AC In ~: This is the input for the Alternating Current power supply that will be provided to
the controlled load.
● AC : 110-240V / 50Hz: This specifies the wide range of AC voltage that the decoder can
handle for the load (from 110V to 240V AC) and indicates it's designed for 50Hz
frequency, common in many parts of the world.
● AC Load Out: This is where the controlled AC power is supplied to the AC load (e.g.,
dimmable LED bulbs, incandescent lights, or other AC appliances). The decoder will
regulate this output based on the incoming data signal.
In summary, this SPI (AC) Decoder is a specialized controller that bridges digital SPI/WS2811
data signals with AC power control. It's designed to dim or switch AC loads up to 100 Watts,
operating with a wide range of standard AC voltages (110-240V, 50Hz), while its own logic is
powered by a separate 12-24V DC supply.
