Search found 4 matches

by bill-e
Sun Jan 20, 2019 9:59 pm
Forum: Programs, Libraries and Tools
Topic: Dotstar (aka APA102) library
Replies: 8
Views: 982

Re: Dotstar (aka APA102) library

Hi Bill, Thanks for testing that out. It may be that there is a performance issue in the Python code however I believe that you're still using Software SPI: >>> spi = SPI(baudrate=40000000, sck=Pin(18), mosi=Pin(23), miso=Pin(19)) >>> type(spi) <class 'SoftSPI'> If you could please try adding an id...
by bill-e
Sun Jan 20, 2019 4:32 am
Forum: Programs, Libraries and Tools
Topic: Dotstar (aka APA102) library
Replies: 8
Views: 982

Re: Dotstar (aka APA102) library

Thanks for testing this out! Really appreciate it. First thing to try would be to use hardware SPI if you're not already. I'll need to check the Huzzah32 pinout but some ESP32 pins can support much higher SPI transfer rates; APA102's should be capable of 10's of MHz (the ESP32 can transfer SPI at a...
by bill-e
Wed Jan 16, 2019 2:45 am
Forum: Programs, Libraries and Tools
Topic: Dotstar (aka APA102) library
Replies: 8
Views: 982

Re: Dotstar (aka APA102) library

I tried this with a strip of 136 LEDS and it works well. Any tips for making the LED's update more quickly? It takes about 5 seconds for all the LED's to change color in the 136 LED strip.
by bill-e
Tue Jan 15, 2019 1:52 am
Forum: Programs, Libraries and Tools
Topic: Dotstar (aka APA102) library
Replies: 8
Views: 982

Re: Dotstar (aka APA102) library

I just tried it with 4 APA102 LED's and it appears to be working. Thanks for writing this. It's weird because I just started looking this morning, and it looks like you finished it on Saturday. Good timing! I'll try it with a string of 140 LED's next. I'm using a Huzzah32 board.

Thanks,