WS2801 Vs LPD6803 PLUS Raspberry Pi

EL Wire/Tape/Panels, LEDs, pixels and strips, LCDs and TFTs, etc products from Adafruit

Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.
Locked
bitbitbit
 
Posts: 2
Joined: Tue Sep 25, 2012 1:01 am

WS2801 Vs LPD6803 PLUS Raspberry Pi

Post by bitbitbit »

I just got a WS2801 and wanted to use my Pi to control it.....

I connected as http://learn.adafruit.com/light-paintin ... i/overview

However, after all the connections and python scripts...I could only get white lights with nothings doing on it.....

Now....to keep things simple....I just want to control the on/off only...
"while True:
pixel_output = bytearray(18)
spidev.write(pixel_output)
spidev.flush()
time.sleep(1000)"

still.....white light appears and nothing happens.....

Due to frustrations....I tried my old LPD6803 led strip with Pi....yet white light again....

Can anybody tell me where can I start looking at?
Thanks!

BTW, I already tried switching the CLK and DIN pins....and the wires are all connected at the INPUT side..... :roll: :roll:

User avatar
pburgess
 
Posts: 4161
Joined: Sun Oct 26, 2008 2:29 am

Re: WS2801 Vs LPD6803 PLUS Raspberry Pi

Post by pburgess »

Are you running the python script as root, i.e. using 'sudo'?

bitbitbit
 
Posts: 2
Joined: Tue Sep 25, 2012 1:01 am

Re: WS2801 Vs LPD6803 PLUS Raspberry Pi

Post by bitbitbit »

yup.... :shock:

Locked
Please be positive and constructive with your questions and comments.

Return to “Glowy things (LCD, LED, TFT, EL) purchased at Adafruit”