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91
Electronics / I fried my Sabertooth 2x12A
« Last post by Kisses99 on June 12, 2017, 02:48:13 PM »
I hooked up my sabertooth 2x12A to 2 200w wheelchair motors.  Assuming 200w under 24v are draining 8A only.  I used RC receiver as the input signal.  So when I connected everything and tried to adjust balance output of the elevator, the controller board emitted white smoke and fried. 
Is the board too small for 200W motors?  The wheels were not even on the ground so there was no load (other than some small torque from the wheel).

I bought 2x32A to replace that not sure if it's good enough..
92
Electronics / Re: Questions about Optical Switch
« Last post by mbmosher on June 05, 2017, 06:54:59 PM »
Hey DTM22 & Soeren,

I know this was a while ago, but wondering if you were ever able to get the OPB819 optical switch to work?  I'm having the exact same problem with the OPB819Z, always reads 5V out.  Checked the sensor against my kinect to see if the IR LED is on, and it does not look like it.  Tried swapping anode and cathode, still nothing.  Not sure what's up with this.  Using 82ohm on the anode and 820ohm on the collector.  Thanks for the help.
93
Software / Get the force value along trajectory
« Last post by gov.zeja on June 05, 2017, 09:38:37 AM »
Hi,
I have just started programming robots and in particular I am programming a Staubli robot.
For my application I need to know if it is possible to get the force value, instant for instant, during the trajectory the robot is describing. I'm interested to know whether there is an internal command or something similar that allows me to have the forces value  that the robot uses during the trajectory in the three directions.

Thanking in advance,
Regards.
94
Misc / Memorial Day Sale @ ServoCity !
« Last post by ServoCity on May 25, 2017, 09:06:53 AM »
Click below to check out the BIG savings on our Memorial Day Sale starting this weekend!

https://www.servocity.com/
95
Electronics / How to use and learn tl494
« Last post by RITESH29 on May 24, 2017, 03:36:04 AM »
Hello i need PWM for DC motor speed control can you plaese help me?
96
Software / Occupancy Mapping
« Last post by Srikar B on May 24, 2017, 03:34:28 AM »
Here I have done occupancy mapping for my cells[12*12] (attached link)

And now When my robot is in front of the cell that has already visited, which is updated in the map It should take right without visiting the same cell. how is this possible? [from picture: the position of 0 is my robot's position in the first image attaches, It moves from down to up and when it finds an obstacle it produces 1 and takes right]

Any suggestions?
http://imgur.com/A34OTXs
http://imgur.com/6M6x6Jh
97
Mechanics and Construction / Useful Ball Bearing Tech Tips : ServoCity
« Last post by ServoCity on May 23, 2017, 08:06:11 AM »
Bearings have many benefits and can bring your project up a notch in efficiency, longevity and precision.  Below are a few helpful tech tips to remember when working with ball bearings on your next project




98
Mechanics and Construction / newbie to robotics
« Last post by sundarms74 on May 21, 2017, 03:53:29 AM »
i have a farm.100 sqm.i want to develop a robot for spraying pesticides and nutrients,watering plants,harvesting fruits,anybody can guide me where to start.
99
Mechanics and Construction / Dagu Wild Thumper 6wd Project
« Last post by qqwea1223 on May 17, 2017, 06:11:42 PM »
Hello everybody,

I'm the new member in this forum. I join here to look for a help in my project. My professor gave me a project that using flysky transmitter to control Dagu Wild Thumper 6WD (specific detail here www.pololu.com/product/1560). Honestly, I have no experience in this field and do not know what I have to do. I already have a flysky transmitter, a Dagu wild thumper 6WD, a arduino uno, a raspberry Pi. I would be glad if you can mentor me step by step in this project. If you don't have much time, please at least give me a list what I have to do and what addition devices I have to have?

I'm just a newbie here. Therefore, If my post has any mistake, please let me know.

Thank you so much. I'm looking forward to hearing from you.
100
Misc / zero moment point
« Last post by ketanco on May 16, 2017, 10:02:51 AM »
Hello,
Can someone explain what is zero moment point?
I checked google but all i read confuses me
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