E14
WS28xx - MPX
Abstract: Imbedded WS28xx compatible multiplex LED driver (charlieplexing) with variable voltage.
Specs
This module implements a 12 channel WS2811 emulator to drive multiplex (charlieplexing) signals. The E14 may be cascaded with WS2811 (or compatible) chips.
Features,
- Variable (auto detecting) LED count [0..12]
- PCB designed for imbedding
- Variable LED voltage [2..5V] for global dimming
- 256 step PWM (300Hz) per LED
- Multiplex driver
- Gamma correction (optional via firmware)
- Connects to C30, C23 or C19 modules
- Fast firmware update via debug interface
Note 1: The hardware is identical to the C37 but running different software (ROM, Bootloader & Main).
Note 2: This module connects to the P18 adapter via a FFC cable.
Note 3: The E14 may also be used with other WS28xx compatible controllers such as MobaLedLib or BiDiB NeoControl.
The number of LEDs is detected automatically (n = number of detected LEDs which can be zero),
WS28xx bus: … {common} {led_1} {led_2} … {led_n} …
Example
The E14 connect to the WS28xx bus via the P18 adapter emulating a 4-channel Multiplex driver for up to 12 LEDs. The P18 adapter simply converts the FFC cable form factor to the standard 3-pin WS28xx bus cable. In addition, the adapter protects the integrated signal controller from voltage peaks.
Installing the embedded signal driver inside or near the signal mounting socket. The P18 adapter converts an FFC cable to a standard 3-pin WS28xx cable connection.
