My Plasma 2350 w has arrived but I can’t get a string of Neopixels to work. I have tried the plasma2350.uf2 and the pico2w uf2 files. I had no trouble with my plasma 2040 which works with the neopixels. What uf2 file should I be using?
I believe the one you want is plasma2350-v0.0.10-pimoroni-micropython.uf2
From here, very bottom of page.
Release Version 0.0.10 - Why so blue, RM2? · pimoroni/pimoroni-pico-rp2350 · GitHub
I’ve got my plasma to work from the downloaded .uf2 but this doesn’t seem to include support for the wireless of 2350W which I have. I get an error in the example python code on " import network" - says no such module
import network seems to be working OK for me on the v0.0.11 build for Plasma 2350?
1 Like
Hi
Turns out the neopixels were faulty, theplasma2350 now works with Release 0.11.
However, the when I connect up the neopixel strip that I ordered with the plasma23550 code com3201 show the wrong colours when I run the webpage example from github. The onboard led shows the right colour but the string shows Blue for red, red for green, and green for blue when I coose from the colour picker on the webpage.
I think this is to do with line 32 “led_strip = plasma.WS2812(NUM_LEDS, 0, 0, plasma.plasma2040.DAT, color_order=plasma.COLOR_ORDER_BGR)”
I think I need to change the color_order_bgr to something else. I will try experimenting but if someone could help I would be grateful.
WS2812 colour order is GRB (GRBW to be strictly correct with a byte for white).
Follow the link from the shop entry and there are working MicroPython examples on Github. That is always my starting point.
Click on Code > micropython > examples from the Github page. I cannot give a direct link because I have the Github app installed.
@dBerriff it was one of the examples from the github that I was using, I found by trial and error that I needed to use GRB. I usually use the examples on github as template for my own code as they usually work first time without changing anything.
The examples I have looked at have the correct parameters. That is why I did not think you had seen them.
Just looked at the plasma2350 examples and there is a note saying examples changed to BGR for star led kit. Perhaps the plasma 2350 w examples are set for the star kit as opposed to neopixels GRB.
Now I know the correct setting I can work with it.
Just playing around with the plasma2350w tonight and if you omit the color_order completley the neopixel strip works as expected, displaying the corect colors when running the webpage example.
Just in case this helps anyone else.
Should have read the micropython function reference, everything explained there. In future that will be my first port of call.