neopixel duet2 in RRF 3.3

[tekstyle]

do you still need an arduino? or can I just connect the signal wire on the strip to pin 5 of CONN_LCD which happens to be EN-10 pin of stepper 10 driver using a 74HCT08 and then use M150 command to control? can i still use pin 5 if I have a stepper driver connected to stepper 11 (pins 4,6,8,10).

[dc42]

@tekstyle if you don't have stepper driver 11 connected then you don't need an Arduino, just a fast level shifter (e.g. 74HCT08) to boost the signal to 5V. A limitation is that on the Duet WiFi/Ethernet, using the M150 command to change the lighting will pause movement briefly. This is because there is no dedicated DMA-controlled SPI channel for LED lighting on the Duet WiFi, so the firmware has to disable interrupts while it sends the data to the LED strip.

[tekstyle]

@dc42

got it thank you. also, if using an arduino. do you know which INO sketch is appropriate? I only know of the one from BLV MGN.

[jay_s_uk]

@tekstyle that's the only sketch I know of

[tekstyle]

@jay_s_uk Thank you.