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u/anonOmattie

Update for the ESP32 based Artnet node! RGBAW and SPI LED support
▲ 21 r/FastLED+1 crossposts

Update for the ESP32 based Artnet node! RGBAW and SPI LED support

Hey all! Ive been working on an update for the ESP32-based Artnet node, and I am proud to show off the results! It now supports 3,4, and 5-channel LED colour types, as well as SPI-based LEDs! This basically means support for every LED strip available!

Check out the project and changes here; https://github.com/mdethmers/ESP32-Artnet-Node-receiver

Next to that, a new hardware revision is coming, supporting;

  • Resettable fuses
  • Reverse polarity protection for the ICs
  • 5~24v variable input voltage
  • Terminal block-style plugs for easy connector swaps
  • SPI-based clocked LED support on the terminals
  • PCB-assembled, so better quality control!
  • Price reduction for assembled boards!

Let me know what you think and if you have any questions!

youtu.be
u/anonOmattie — 2 days ago
▲ 3 r/gokarts

QS138 and QS138 Electric Go-kart motor mounts now available in the EU!

Hey! I know promotions like this are not necessarily permitted, but I hope this can be for the greater good of us European electric go-karters. 

Hey all! I have been struggling to find pre-fabricated(!)motor mounts for various Surron, QS165 and QS138 motors here in the EU. There are many that sell mounts in the US, but shipping and importing to the EU is too much for a bunch of steel. Additionally, I think most of these mounts go way too high in their price, sometimes reaching up to 200$ for a simple mount.

Therefore, I have decided to sell affordable and DIY mounts for the QS165 35H 50H (Surron motor compatible) and the QS138 70H 90H! Made of 4mm steel these mounts are made to withstand ~20KW of power!

I sell these in 2 versions;

  • Affordable DIY kits > Weld the 3 parts yourself! Shipping only ~€10 through > Price €75 (Both QS165 and QS138
  • Pre-welded > I weld it for you! Don't expect premium welds, but it will hold up just fine!

I'm also available for custom enquiries. Let me know if you have any questions!

Get your mount here: https://www.etsy.com/nl/listing/4501173574/qs165-35h-50h-60h-skelter-met-motor

u/anonOmattie — 4 days ago
▲ 4 r/PrintedCircuitBoard

Hey all! I would love to hear your feedback about this PCB i designed, which uses an ESP32 and W5500 module to receive Ethernet and control LEDs over Artnet. I copied some of the power management and level shifting capabilities from the Adafruit sparkle PCB, but as I picked different parts for some of the design, I would like some eyes on the following points.

- 5/24v-to-3v Buck converter. I copied the design from the Sparkle, but as I am unfamiliar with buck converters, I am not sure if this will work. I only need 3V for the ESP32 and W5500. The Buck IC is rated for 2A, and the inductor is rated for 2.6A, 8.2uH, and 45miliOhm, saturated at 3.2. Would this generate a workable 3.3v rail?

- 5/24v-to-5v converter. Should supply 300mAh, which should be enough for the level shifter (works from 4.5v and up), OLED screen, and WS2812.

- The level shifter outputs a clock signal to the output. This router over the power plane, and Im worried about noise reaching the SPI or signal lines. I cannot think of another way to have my Clock and Signal reach the connector though.

- Any other recommendations, feedback, or suggestions are appreciated, as this is my first integrated circuit on a PCB. Thanks!

u/anonOmattie — 15 days ago