Makelangelo 2.5 not connecting

[Anonymous]

I have an arduino uno and an adafruit motor shield v2.3 that I am turning into a makelangelo 2.5, but even though (to the best of my knowledge) everything is connected and the firmware is downloaded, the software won’t connect.
I try to connect by clicking connect, and then my serial port, but nothing seems to happen, and I can’t move the servo like it shows in the instructions.
Sorry for the noob question, but I haven’t been able to figure this out on my own.

[Anonymous]

First things first: are you running the latest edition of the software and firmware?

[Anonymous]

Yes. I also think I have it configured properly. I’m not positive though because it isn’t working.. .

Thanks for the help, is there anything else I can tell you to help you help me.

[Anonymous]

What do you see in the Arduino Serial Monitor when you connect to the robot?

[Anonymous]

This message:

ž `±XAڏ¤EXƒzQífýê3N†B|¦1ùòù¨$¤ I¼;CÐÁ¤Ç e¤”:r;<b?8épsŒ:Ó´Ž¼àY!U N”hxç‰þòùùùùùùùóùùùùùùùòýòòóòóóùóùùùýùòòùùòóùù

I could be wrong, but I assume that isn’t what I should be getting.

[Anonymous]

Sorry, I lied that was with the incorrect baudrate.

HELLO WORLD! I AM DRAWBOT #0
Estimated pre-scale: 2.81
Final pre-scale: 3

HELLO WORLD! I AM DRAWBOT #0
M100 – display this message
M101 [Tx.xx] [Bx.xx] [Rx.xx] [Lx.xx]
– display/update board dimensions.
As well as the following G-codes (http://en.wikipedia.org/wiki/G-code):
G00,G01,G02,G03,G04,G28,G90,G91,G92,M18,M114

>
>
>
>

[Anonymous]

Well… that all seems correct. Does the Makelangelo log say?

[Anonymous]

I think that that is where I get the issue. I try to connect and I get a check mark next to the port, but nothing appears and I can’t control anything. The option to disconnect also isn’t possible which I assume mean it doesn’t connect. I’ll attach a screenshot.

[Anonymous]

View post on imgur.com

[Anonymous]

That’s… new. If you can open a serial window to the arduino and it answers, the makelangelo should also be able.

The only time I’ve seen Arduino fail to connect to an arduino pcb is when it’s a cheap chinese knockoff and the FTDI chip is bad. only affects Macs.

[Anonymous]

So I haven’t tried to move the motors and the servo through the serial window, is that possible to test if it’s really connecting to the steppers and servo?

[Anonymous]

Yes! Great question.

D0 L150
D0 R150

D0 L-150
D0 R-150

150 could be any number, really. L for left motor, R for right.

[Anonymous]

Well unfortunately that does nothing. The stepper motors aren’t even making an attempt to move, or showing any sign of power going to them.

[Anonymous]

Can I see a picture of your wiring, please? Maybe there’s a crossed wire somewhere.

[Anonymous]

imgur.com/LAVHvYH

[Anonymous]

Looks like blue and yellow are swapped.

This is an AMS2 shield, which means the shield i2c address is probably wrong. Run one of the Arduino demo files that scans for all i2c devices, that will tell you which address is the right one. then change the address in the fiemware_ams file and upload again.

[Anonymous]

The default address in firmware_ams is 0x60. When I used a scanning sketch it said if found two devices: one at Ox60 and one at 0x70. I tried both but neither of them changes the issue. Thanks so much for all this help, I’ve been having a lot of trouble.

[Anonymous]

I’d focus on reducing the problem set. Find some way to prove that individual pieces work. If each one goes, then it’s something about the way they work together that’s the problem.

Sadly I don’t have an AMS2 to plug in and try at the moment.

[Anonymous]

Is it a problem that the TX LED keeps blinking?

[Anonymous]

Ok, so I re-downloaded the software yet again, but somehow this time it connected. http://i.imgur.com/LYRSQTg.png

Now the servo won’t move, or the steppers.

[Anonymous]

Update: the servo works, but one of the steppers does nothing and the other just emits a high pitched noise.

[Anonymous]

Sounds like just one of them has a crossed wire.

[Author]

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