Comment by Morli on March 8, 2010 at 12:13pm

VU2at , any write up to go with the above ? some details will be very helpful and interesting too

Comment by vu2at on March 8, 2010 at 12:23pm

Hey Murli, this photo is added for Mr. Chris Anderson, with whome I am communication via personal messages and I could not attach this screenshot in the message so uploaded it and pasted link in he message.

My servos are not working in auto mode, communication with Mr. Chris Anderson is pasted below for reference, did you face any such problem ?

Mr. Chris Anderson even being the owner of this website is helping me a lot and replying continuously withing 2-3 minutes of receiving my message.


Let me explain the detail of my problem here for your referene;

Sir,
Soldering seems ok as the signal pin of the Control servo connector is reaching the ATTiny45 pin #7, well as per the circuit diagram. Also I have seen the ATTiny45 with lense and found all pins absolutely alligned.

I have made sure that the GND pin of my servo jumper connecting to control connector is facing downside towards the edge.

Since I could not upload photo in this message, I uploaded the screenshot of the pcb which I have checked and verified with digital multimeter.

http://diydrones.com/photo/ardupilotcontrol-signal-to-pin?context=user
regards

VU2AT

From Chris Anderson to vu2at
Sent 47 minutes ago

I'd check the soldering of the switch channel connectors (also make sure that you didn't plug it in backwards!). Also, make sure that the mulitplexor chip was placed correctly on the board; a few were misplaced (offset by one pin) at the factory.

From vu2at to Chris Anderson
Sent 53 minutes ago

Sir,
I do not have any good digital camera only mobile phone from which I can use but it won't take picture clear picture of the SMD components.

What I can do is that I will try to take few very closup photos of the PCB od Ardupilot if it is clear, I will send it you but in case if it is not clear then I will arrange good digital camera of my friend and take photo and then send to you.

Sir, I am good at Electronics and in soldering too, so if you could suggest which I can do with the help of a digital mutimeter.

Now I again loaded "Ardupilot_25_radio_test" from test suit folder and again checking the pulse widths of the receiver channels

I can only seen three channels in the serial window; ch1, ch2 and ch3 and no switch channel !
Regards

VU2AT

From Chris Anderson to vu2at
Sent 1 hour ago

You almost certainly have a soldering or other hardware problem. Please send a closeup photo of your board with the RC and servo plugged in to chris@wired.com.

From vu2at to Chris Anderson
Sent 1 hour ago

Sir,
"In the serial terminal, is it registering that you've changed modes?"
Sir, I have not observed that, well I can do it in next 15-20min and let you know.

regards

VU2AT

From vu2at to Chris Anderson
Sent 1 hour ago

Sir,
Mode LED does not change at all irrespective of changing the Ch 5 mode switch to any position.
What I can observ is that the amber colour status LED switchws off when I switch off the transmitter.

regards

VU2AT

From Chris Anderson to vu2at
Sent 1 hour ago

When you switch channel 5 (mode), does the mode LED on the board change? In the serial terminal, is it registering that you've changed modes?

From vu2at to Chris Anderson
Sent 1 hour ago

Sir,
If I switch off the transmitter then servos chatter but even when I place my finger infront of any sensor of X-Y or Z sensor, they do not move at all irespective of the position of the control switch.

Sensors are ok as when I place my finger near any of the sensor, I get deflection reading in the Monitor Terminal window of Arduino.

regards

VU2AT

Comment by Morli on March 8, 2010 at 8:21pm

Hi Vu2at, Sorry I did know about ur issue and conversation with Chris. I was going to say if you could get Rana's help being near you , Rana has already replied you and has right tools too, could visit him to sort the issue if it is Ok with Chris & Rana. Thanks Rana for support

Comment by vu2at on March 8, 2010 at 8:25pm

Many many thanks Rana Ji !, sent you personal message please provide your mail id so that I can contact you.
Chris sir, pl. see below the photos as suggested by you.

However my prblem is not resolved but once again I thank a lot Rana Ji, Chris Sir and Murli.

Comment by vu2at on March 8, 2010 at 8:27pm

regards

VU2AT

Comment by vu2at on March 8, 2010 at 8:56pm

Hey Murli, I have no proper words to thank Rana Ji for extending such a great help.
sure I will do that, but did you ever came acrosa any such problem ?

regards

VU2AT

Comment by Morli on March 8, 2010 at 9:10pm

@vu2at ,Can't say i have like this one but would say go easy on solder . Like Rana said it could be the f/w if not then start using multimeter and start tracing the solder to tracks to isolate the elusive dry solder( I am sure you would have but just in case, I had a similar issue recently),

de
morli

Comment by vu2at on March 9, 2010 at 1:08am

Hey Morli, Rana ji is extending help to me. But Chris Sir and you also did well whatever you could.
Many many thanks for your help and support.

I will update you. In the evening, most probably I meeting Rana ji, if he is back home at time.
He is Senior Manager in a big telecom company in Gurgaon and heading all the network operations of the entire city of Gurgaon.

Cheers !
VU2AT

Comment by Morli on March 9, 2010 at 3:26am

That is good to hear vu2at, this is the power of open source forum with great team to fall back, keep us updated & good luck Thanks Rana

Comment by Morli on March 9, 2010 at 9:45pm

Did you get time to check it( the faulty one) Rana? thanks for feed back

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