EXT LED STRIP CONNECTOR 4 PIN DRIVERS

Support for NeoPixel strips on Duet 2 WiFi/Ethernet was added in RRF 3.3.Ī signal for controlling Neopixel strips can be output on pin 5 of the CONN_LCD connector provided that you do not have external stepper drivers connected to CONN_LCD. In particular, if you are powering a Raspberry Pi or other single board computer from the Duet, then the Duet will not be able to power a LED strip as well. If you are powering the LED strip from the Duet, make sure that the Duet is able to supply sufficient current (maximum 3A total external load on +5V). The firmware limit for DotStar LEDs is several thousand.Ĭaution! LED strips can draw a considerable amount of power, usually up to 60mA per LED (for RGBW Neopixel LEDs, up to 80mA per LED). In RRF 3.4, this increased to 240 RGBW LEDs or 320 RGB LEDs. RRF 3.3 supports up to 80 RGBW LEDs or 106 RGB LEDs. In firmware versions prior to 3.3 the maximum supported number of Neopixel LEDs in a strip is 60 RGB LEDs. For NeoPixel strips, connect the data input line to the DS_DO pin of the Duet.

If you swap the clock and data lines over then the LED strip will not work correctly, but no damage will be done. It's not always clear which way round these lines are on DotStar LED strips. For DotStar LED strips, connect the DotStar clock line to the DS_CK pin of the Duet and the DotStar data input line to DS_DO pin of the Duet.Connect the +5V pin of the LED strip either to the 5V pin of the DS_LED connector, or to an external +5V power supply.Connect the GND pin of the LED strip to the GND pin on the Duet DS_LED connector.Connect the LED strips to the 4-pin connector labelled DS_LED.

Ext led strip connector 4 pin