Are the sequences that the on-board IC of this:
random? Sometimes when I power it on, the sequences seems to be slow, sometimes it seems to be fast, sometimes not sequences, it gets stuck at one of the LEDs and just stops…
I have it connected to one of the servo channel (channel 26) on the SSC-32, do I control the sequence speed/rate through PWM on that channel?
I grabbed this from their website. It doesn’t mention controlling the speed. So it looks like it may be feeling a bit ill. 
Sinewinder has 12 bright LEDs that scan from side to side, with a short trail after the leading light. The lights can be switched on and off by using your radio. If no signal is present or the signal wire is cut, the lights will default to being on.
You can send it to them directly for replacement.
John at DE said…
“Hi Jim,
The speed on a Sinewinder should not change - it’ll either run or shut off depending on the input signal or lack thereof. I’d say his is probably flakey. We can replace it for him directly if you’d like, or we can send you an additional one when we send the second half of your order.
John”
Thanks for the info Jim. I think it has something to do with a nasty transient when my servo is drawing power. I checked my two sinewinders connected to the SSC-32 without the logic powered on (which means the servos aren’t being commanded to move), and the problem doesn’t seem to exist.
I think when the VL is powered on and then VS is powered, the servos are commanded some movement which causes a huge spike on the VS line. I think this is what was causing the sequences to get screwy.
Thanks for contacting Dimension Engineering for me, I’ll take up their offer if the unit ever fails…
Can’t you just wire the two of them onto the SSC32’s logic +5V supply then? And there are the four I/O pins there too (A B C D), so it might be possible to still control it even.
That way maybe the VS brownouts won’t affect them?
Yeah I connect mine to the Bot Boards 5vdc output by an unused I/O pin. It’s solid.
Hmm, didn’t even think about that… I think I will try that! Thanks 
