Hello, I am relatively new to this ArduStation. I attempted to upload the Ardustation demo program using the ftdi cable, but i recieve the error:

avrdude: stk500_getsync(): not in sync: resp=0x00
avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x51

Any help/ suggestions would be appreciated to help me get this thing up and running.

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Glad that worked for you.  No I hadn't thought of slowing down the reset - but that is a really good idea. Having a bit of  a filter on the rate of change sounds good.  If you want to try it go for it - as I'm working on some other stuff and I can merge it into 2.0.16 - assuming we have ram - but I'm working on that also.



I’ve been working on buffering the movement of my tracker and found this, which works great.

VarSpeedServo Library.

I found a few places that talk about it, but only one that seems to have the download link.


It's in post #14.

I made the few changes need in the code and seems to work great now.

I had to add the speed variable, and now it it moves from 360 to 0 degrees, it does it in about 1.5 seconds and doesn’t over shoot and jump the gear on my tracker.

My tracker uses a 180 degree servo to move a full 360, With the gearing it has a 180 degree moves the tracker about 420 degrees so I had to had a reducing value and have a full 360 tracker working off your software.

So far the only problem I still have is on startup when it uses the attach servo, the tracker rotates very fast, but got a workaround. I found that on the attach servo it wants to move the servo to the 90 degree position. I place a message on the screen that it's going to move, (remind me to do something) move the tracker manually to the south position. No more fast HARD movement.

Hope you can use the info.

Burt Green


Thanks Burt for the info.


Hello all,

I just completed my Ardustation. First I found that I get no symbology on the LCD unless I rotate it 180 degrees from the orientation described in the wiki. The LCD works if it is above the main board rather on top of it next to the buttons. In the Wiki described orientation the LCD is not powered.

Next I was able to program the chip using an FTDI cable without errors (Arduino 1.0.1 and Ardustation2_APM_ACM_2.0.15_Mavlink1.0) . I also was able to program the chip using an Arduino UNO without errors. BUT always when I power up the Ardustation I get only the squares displayed on the LCD. This occurs no matter the power source - FTDI or via the DC power jack. I was able to load an old version of Ardustation that would make the buttons beep using arduino-0022-relaxpatch, but still only boxes on the LCD. Any ideas would be appreciated. Thanks.


Well sure as ...... as soon as one puts something up on the forum one manages to solve his/her problem. So sorry about the confusion. I reoriented the LCD as per the wiki and readjusted the LCD bright/contrast pots and all is well... one of those things!

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