Tronic's AMC motor motion-controller with pwm/servo output

[rappa]

hello!

stay here what i go to do

thanks
Rappa

[ne02005]

Rappa, excelent work!!!
you took all the unnecessary parts that are useless!!! like 8 Pots, servo (never working), programmer, etc

Board is very small!!!

[rappa]

thanks ne02005
the bord have programmer, now I don´t have must time to finish the job but I will put here what I'm doing, will be beautiful in the box

Rappa

[rappa]

hello today arrived the ft232bl, more pictures

[erichans]

y AMC1.5 can drive three or four motors by sacrificing the use of the LCD display during normal operation. This requires new Firmware that I have not released cause its useless with current x-sim Profiler since it supports only 2-axis motion data thru its USO. You can see it as a future feature when its also supported by the software... I try to have the LCD in use for the beginners to know whats going on inside my AMC controller and debug on their own any possible problems.

Hi Thanos,
Long time! Is there any way, since you last posted the above, to run Motors 3 and 4. other than by using a second computer? My need for this has arisen as I wanted to add a seatbelt tensioning motor which would work during acceleration and deceleration. Initially, I tried this by just parallelling the seatbelt motor with the pitch motor, but due to different loads and travel distances the two motors did not run in sync. I then realised the seatbelt motor would need to run as a separate axis with it's own feedback pot. Everything else is mechanically ready ready. Thanks.

Also you had mentioned the need for a software person capable of making a GUI in VB6 for changing the Kp values, instead of using the Hyperterminal. I have found such a person and if you send me some details, I'll pass them on to him.

Regards, Erich.

[Gianni]

Hi Thanos,
I have been reading all past posts regarding your AVR-v1.5 and H-Bridge-v1.0 and I must congratulate you for your huge effert in sharing this great work with us. I have completed the assembly of all components and now busy testing interfacing with my computer. Beside few hick-ups with my LCD module (Powertip PC1602-H) requiring -1.4V supply to the Contrast pin 3. For this, I have added 2x1A diode in series between the Ground Power Jack input and the LM2940, my power supply is 9V.
Now, I have a new problem in interfacing with the Pony Program. I have followed all the instructions reported in this Forum, changed crystals, the Pony .ini file etc. etc. all without success.. and ofcourse with the 'Device Missing -24 report). When the Pony Program reads the card, there is no sign of the RED led flickering or turning on, but it is ok if the reset button is pressed. I have been measuring the voltage on the RESET jumper, the reset button set the pin 9 of the ATMEG8535-16PU down to 0V (ground) while the signal from the BC547 can only take this to +4V, which I don't think is enough to reset the ATMEGA. I have changed R1 and R2 with lower resistors values (1K and 1.2K) and now the RED leed does come on, but voltage only reads +2V and I cannot get this to improve. if I 'play' with the reset button while the Pony program is working, I manage to set the fuses and get some reading, but when running the firmware, the verification fails and I'm back with all 000000... in the memory. At the time of ordering the BC547 I have managed to get only the BC547A, is this major difference? I have also tried to run Pony Program with the RED led disconnected, this to make sure no voltage gained from it.. but still reading +2V on the reset pin..
I would be really grateful if you could advise some solution to this problem, maybe suggest a different transistor. I have gone so far with this project and I'm impatient to start building my 2DOF steel frame chair and share design and information with everyone.
Best regards.
Gianni (new member)

[Frakk]

Erich, have you thought about using a decent RC servo for your seatbelts? The more powerful models have a lot of torque and you can move them 180degrees, which is good enough because to tighten a seatbelt you don't need much movement. IMO they are the cheapest and simplest solution, compact in size and the feedback is already built in.

200oz/in if you give it about 6V:
http://www.hitecrcd.com/servos/show?name=HS-755HB

Gianni, double check your soldering and component placement. BC547 or BC547A doesn't matter. Check your diode polarity, transistor pins, soldering and traces, and also the DB9 pin connection. Maybe something is not connecting properly.

[sterex]

hi tronicgr,

i am a newbie, i 've been learning from your site for a long time now, even before i came to know about x-sim. infact it is your valuable site that lead me here. Anyway i tried to see your website today, but it seems like there is a bit of a problem. an error message 404 comes up anytime i wanted to visit your site.

[tronicgr]

hi tronicgr,

i am a newbie, i 've been learning from your site for a long time now, even before i came to know about x-sim. infact it is your valuable site that lead me here. Anyway i tried to see your website today, but it seems like there is a bit of a problem. an error message 404 comes up anytime i wanted to visit your site.

I know its down. I cant get it back online right now. So I uploaded it as offline here:
http://rapidshare.com/files/351277079/t ... ffline.zip

You can view it as if it was online.


Thanos

[Gianni]

Hi Frakk, some how R5 resistor got swopped with a 20 ohms... will continue inspection before fire it up again.. Thank you.