PR29

LED Blinking, Walking with Cytron Servo, Displaying RFID, Multi-function Mobile Robot......

Re: PR29

Postby mark » Fri Mar 02, 2012 10:23 am

I went to Nixie yesterday to see the sample of the project and I realize that they are using the PCB of PR27 to run this PR29 project. Will it actually affect???
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IMG-20120228-00144.jpg
Took this from Nixie
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Re: PR29

Postby hyng » Fri Mar 02, 2012 4:53 pm

PR27 and PR29 are using the same PCB.
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Re: PR29

Postby mark » Sat Mar 03, 2012 12:16 am

but it looks a bit different
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PR29 pcb.png
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Re: PR29

Postby mark » Sun Mar 04, 2012 4:37 pm

I've fix everything onto the PCB given by cytron but still black boxes.
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Re: PR29

Postby sich » Mon Mar 05, 2012 10:18 am

Have you programmed the chip? Played with contrast?
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Re: PR29

Postby mark » Mon Mar 05, 2012 11:22 am

tried. i solder one set on the pcb that i made ~ the other one on the pcb given ~ both same result.
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Re: PR29

Postby mark » Mon Mar 05, 2012 12:26 pm

this is my pcb. project still not working. presentation is tomorrow. haihz
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rimu 1.png
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Re: PR29

Postby ABSF » Mon Mar 05, 2012 2:05 pm

mark wrote:this is my pcb. project still not working. presentation is tomorrow. haihz


There is definitely mistakes in your PCB. The capacitor symbol after the rectifier must be a switch. and one of the cap at the 7805 is not grounded. What are the red wires? Are they insulated wires connected underneath the PCB?

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Re: PR29

Postby mark » Mon Mar 05, 2012 2:14 pm

ok, thanks. will edit it. red wires are the jumpers.
but when i fix everything on the pcb given by cytron, still i c black boxes. any idea?
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Re: PR29

Postby ABSF » Mon Mar 05, 2012 2:21 pm

If you dont know how to trouble shoot. The best bet is to send it back to cytron for them to repair 4U.

btw there is one more mistake in your PCB, between RA5 and base of transistor a 1K resistor is missing.

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