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1  Using Arduino / Programming Questions / Re: shiftOut() on: September 29, 2014, 02:03:06 pm
As you read:

I was think that clock must be high before data pin is written in order to data pin state will be "saved".
 Ok, thanks for answers! :-)
2  Using Arduino / Programming Questions / shiftOut() on: September 29, 2014, 01:03:39 pm
Hello,

Regarding to shiftOut() function in Arduino library, why is first writting to data pin, then shift clock is pulled high and then low? Why is not in this order:
1. shift clock HIGH
2. write data
3. shift clock LOW

Because I somewhere read (for 74hc595) that data must be written on every positive edge of shift clock..

Ty!
3  Using Arduino / Installation & Troubleshooting / Re: Arduino Nano - vid pid on: September 06, 2014, 09:25:35 am
Thank you very much. I download Prolific drivers and it works perfect.
4  Using Arduino / Installation & Troubleshooting / Arduino Nano - vid pid on: September 06, 2014, 08:37:41 am
Hello, I recently bought Arduino Nano v3.0 from ebay. My problem is that i cannot install usb drivers for him either on Windows 7 64 bit or Windows XP 32 bit.

 FTDI drivers that i downloaded (from http://www.ftdichip.com) has vendor id (vid) set  to 0x0403 and product id (pid) set to 0x6001 (0x6010, 0x6011, 0x6014 and 0x6010).

With program USBView i saw that my Arduino Nano has vid set to 0x067B and pid set to 0x2303. So i belive that why i cannot install this drivers..

I try manually change pid/vid to match pid/vid on my Arduino Nano but no luck...

Is there any way to fix this? Is possible to reprogram eeprom on Arduino replace pid/vid?
Thx.
5  Using Arduino / Motors, Mechanics, and Power / Re: Stepper Motor 17HS19-1684S on: December 07, 2013, 10:06:30 am
Thank you for answer. So only chopper driver will work with this steppers or exist some other solution similar to chopper?
And one more question, can chopper driver be connected with arduino?
6  Using Arduino / Motors, Mechanics, and Power / Re: Stepper Motor 17HS19-1684S on: December 06, 2013, 05:45:11 pm
I found two which probably will work good with specified steppers.

1. L298N
2. Adafruit Motor/Stepper/Servo Shield for Arduino v2 Kit


Can u suggest me which is better? Thank you.
7  Using Arduino / Motors, Mechanics, and Power / Stepper Motor 17HS19-1684S on: December 06, 2013, 03:22:57 pm
Hi!

I just bought three NEMA 17 Stepper Motor Model 17HS19-1684S.
Can u suggest me a good arduino motor shield driver for these steppers? Thank you.

Stepper motoro specification:

Frame size 42 x 42mm - NEMA 17
1.8 degree step angle
Length 47mm
Holding torque 44 N.cm (4.4kg.cm, 62oz.in)
Voltage 2.8V
Current/Phase 1.68A
Resistance/Phase 1.65ohm
Inductance/Phase 2.8mH
Inertia 68g.cm
Bipolar, 4-wire
Weight 0.35kg
Step Angle Accuracy ±5%(full step,no load)
Resistance Accuracy ±10%
Inductance Accuracy ±20%
Temperature Rise 80℃Max.(rated current,2 phase on)
Ambient Temperature -10℃-+50℃
Insulation Resistance 100MΩMin. 500VDC
Dielectric Strength 500VAC for one minute
Shaft Radial Play 0.02Max.(450 g-load)
Shaft Axial Play 0.08Max.(450 g-load)
8  Community / Exhibition / Gallery / Re: Arduino robot controlled using computer on: May 09, 2013, 04:48:13 pm
Hi!

I just want to present my finished arduino robot, it took me about 3 months to put all together and write application.

I hope you like it.

LINK:

Here is source code: https://github.com/niky518/ArduinoRobotCS.git

Here is source code: https://github.com/niky518/ArduinoRobotCS.git
9  Using Arduino / Motors, Mechanics, and Power / L298 schematics on: March 21, 2013, 06:35:10 pm
Hi!

I want to connect Arduino Uno and stpper motor (4 wires) through L298N

Would somebody could give me a schematics?

Thanks in advance
10  Using Arduino / General Electronics / Re: Motor Driver on: March 21, 2013, 05:43:30 am
Thanks for your answers, will mix somenthing ... I hope without white smoke: D
11  Using Arduino / General Electronics / Motor Driver on: March 19, 2013, 07:23:45 pm
Hi!

I have a quick question. Can I connect the two L298N to  Arduino? So that we can control the 2 stepper motors or 4 dc motors.

Thanks in advance smiley
12  Using Arduino / Project Guidance / Re: Material for projects on: March 05, 2013, 01:40:35 pm
I suspect if you want 'openbeam' (which is what adafruit sells) you don't have must option in terms of price.

Depending on what you want to do, you might go to woodworking specialty stores like Rockler or Woodcraft to look at their supplies for building jigs and t-tracks.  Last night my jig for my wood router got broken, and I need to rebuild it, and I might be going with t-tracks instead of DYI drilling holes, etc.


Another way to make tracks is layer several pieces of wood/metal/etc. so that the bottom layer is solid, the middle layer has enough space for the t flange, and the top layer is thin enough for the screw post, but not for the flange to come out.  My table saw had tracks that were wider than my other tracks, and I made my own posts with screws and washers.  If you have a router setup, you can get router bits to cut the specific slot, but by the time you do that, you probably would exceed the cost of the adafruit pre-made parts.

I imagine if you go to toy stores, you might find tracks for toy cars like hot wheels.


Thanks for the informative reply Michael. I found rly great solution for my projects, material is called Bitbeam. But it seems that nobody sells Bitbeam, it is necessary to have a laser cutter for it... And ofc i don't have one smiley-sad
13  Using Arduino / Project Guidance / Material for projects on: March 05, 2013, 12:33:10 pm
Are there materials for building projects, as shown on the link below (or similarly - plastic ,wood...), only cheaper?

LINK: http://www.adafruit.com/products/1274
14  Community / Exhibition / Gallery / Re: Arduino robot controlled using computer on: March 05, 2013, 12:30:35 pm
Are there materials for building projects, as shown on the link below (or similarly), only cheaper?

LINK: http://www.adafruit.com/products/1274
15  Community / Exhibition / Gallery / Re: Arduino robot controlled using computer on: February 20, 2013, 08:13:20 pm
All in a flashy video which does not give much detail away.
Will you release the schematics and code ?
I am sure we would all like to know more and possibly copy or scavenge your work for our projects .


I will release more details about my robot and application soon.. currently i have some obligations and i do not have time
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