Search found 3 matches
- Sun Mar 01, 2015 1:03 pm
- Forum: General Discussion and Questions
- Topic: RTC stops when unpowered
- Replies: 2
- Views: 3651
RTC stops when unpowered
Hi! I connected a backup battery to VBAT in order to keep the time when the pyBoard is unpowered. It actually keeps the time - but the RTC seems to stop while the pyBoard is unpowered. So, when the pyBoard is powered and I set the RTC to 12:34 programmatically - after unpowering and powering the pyB...
- Thu Nov 06, 2014 6:51 pm
- Forum: General Discussion and Questions
- Topic: WS2801 with SPI on Micropython
- Replies: 2
- Views: 4610
Re: WS2801 with SPI on Micropython
I am using v1.3.5 from 2014-10-29 on pyB v1.0.
It seems to be working now with both polarity and phase set to 0. I don't know why it didn't work before. Probably was a wiring issue.
It also seems to work with 20MHz clock speed. Nice
Thanks for the support!
It seems to be working now with both polarity and phase set to 0. I don't know why it didn't work before. Probably was a wiring issue.
It also seems to work with 20MHz clock speed. Nice
Thanks for the support!
- Sat Nov 01, 2014 7:28 pm
- Forum: General Discussion and Questions
- Topic: WS2801 with SPI on Micropython
- Replies: 2
- Views: 4610
WS2801 with SPI on Micropython
Hi! I am trying to get my custom built RGB LED display running with my pyBoard. It's based on WS2803 chips which are basically 18-channel WS2801 (Protocol described here on page 6: http://www.jarzebski.pl/datasheets/WS2803.pdf ). I already tried bit banging the protocol which worked. But this is a b...