Hardware > Bobcat DMX Servo Controller
First Bobcat Build - Need updated manual
mkozik1:
Am wondering if anyone has the new updated pics Night Owl provided a little while back? I just completed my servo board and have noticed many differences from the manual and what I have! I have powered it up but have no lights. When I plug in a servo, I get the initial power cycle but cannot control from Vixen. I have the jumper in place to power both the board and the servo from one supply just for test purposes.
One big question I have is the (+) for the LEDs, top or bottom hole? I assumed bottom because the track was going to the resistor (which is probably wrong!). I have programmed the PIC and I have attempted to set the start channel using the configuration tool.
Any help would be greatly appreciated.
Take care,
n1ist:
You have the LED correct; top pin is ground (near the flat line on the silkscreen). Bottom pin is the anode, connecting to the resistor.
/mike
mkozik1:
So Mike, with all that I have done, where should I begin troubleshooting? I checked my solder joints, no stray solder causing a short. Based on one of RJ's videos, I removed all of the chips and still saw no power light.
Ugh >:D
n1ist:
A few things to check:
Do you have the jumper on the left side of the board in the WIRED position?
Is the DMX cable plugged into the left (DMX IN) jack?
Using a meter, check for 3.3v between pins 2 (positive) and 3 (ground) if the programming header? Pin 1 is the left one, closest to the PIC.
I will have to check the code, but I think the LEDs are error (red) and data (green)
/mike
mkozik1:
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Register or LoginA few things to check:
Do you have the jumper on the left side of the board in the WIRED position?
Is the DMX cable plugged into the left (DMX IN) jack?
Using a meter, check for 3.3v between pins 2 (positive) and 3 (ground) if the programming header? Pin 1 is the left one, closest to the PIC.
I will have to check the code, but I think the LEDs are error (red) and data (green)
/mike
--- End quote ---
Thanks Mike, I have a few of the answers, but am traveling right now and will need to obtain the other when I get back. I know the jumper is on wired and the cable IS plugged into DMX In as stated on the PCB (I actually tried it in both just to make sure!!). I will have to check the voltage on the ICMP Header. I was able to program the PIC through this port does that matter or will all the voltage come from the programmer?
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