Asked
— Edited
I have couple question about the kit.
If I have servos HS 645 can I use with EZ robot brain.? If I can than how many can I use up to ?
I am really interesting about using lipo battery? However if I use servo HS 645 than do I have to do any adjustment?
Last question, if I purchase I complete kit , which is include heavy duty servos. Are they same size as HS 645 servos?
Thank you.
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The servo you mentioned has an operating voltage of 4.8-6V so your power source into the ez-b would have to be within that range and also supply enough current to power the number of servos you wish to plug in.
If you wish to use a higher voltage power source you will have to regulate the voltage out of the digital ports before connecting a servo.
The servos in the EZ Robot developer's kit are better and stronger than the Hitec HS645s... They also have no issues working with 7.4V lipos
Are the EZ servo have the same size with the standar servo? I would love to find out cause I need 24 of them. *stress*
EZ Robot Heavy duty servos...
Width 2 cm
Length 5.5 cm
Height 3.5 cm
Weight 0.070 kg
http://m.ebay.com/itm/371204454549?nav=SEARCH
two in parallel should cover them through full capacity. They are adjustable and you need to use a multimeter to set the voltage.
Rightnow I am studying EZB programs, should I wait until my EZB brain is here.
A little secret between us. The robot kit I try to build call A - pod. Check it out.
That is a pretty cool looking robot...
Alan
For now, with some calculation 1EZB brain and 24 servos from EZ will cost me $388 *stress* *eek* *eek* *eek* *eek*
Any deal ?
The purpose for my bot would be autonomous exploring surround erea and processing the information to generate a map. Therefore the EZB program will provide me an environment to monitor the robot and magnet the information right ?
You just missed the Cyber Monday 20% off sale, which would have helped a lot.
The developers kit comes with some servos (although 2 of them are modified 360 rotation, so may not be useful for your project) but also has a ping sensor and camera, so that has some built in savings. Also, the 3 servo arm or the "scorpion" kit has a built in discount. Basically you get the claws for free (although they are micro servos, and the servos you do get have the EZ-Bit plastics and don't have the original servo top, so if trying to fit in an existing chassis, possibly not a good idea).
If you have any existing robot, EZ-B is currently holding a contest for the best holiday themed robot video. The winner gets $200 in EZ-B credit.
Also, answering other member questions gets you $3 in EZ-B credit. A lot of questions can be answered just by being skillful using the search and playing with EZ-B software, which you can learn a lot of before owning an EZ-B.
Alan
PS I will upload some of my robot video later ;).
Do a little study about ARC, love it, however i only could read the manual for now but I already recognize the power of The Scrip.
The other day, i was sharing the goal for the robot. Today I have couple question for the educational goal.
My educational goal in this project is use invert kinematic . if I know the fundamental algorithm for body IK and Leg IK can i use ARC to execute it ?
I realize that invert kinematic to control robot, however can i use it for autonomous movement ?
For Example: if distance in front empty, use IK function to calculate the angle of each legs and execute moving auto balance moving forward ?
*blush*
If i get the complete kit, it come with rechargeable battery, however if i want to use lipo battery what connection should i purchase ?
*blush*
i am planning to get the complete kit from roobotshop.com and order extra servos from the website ? or should i order everything from EZ-robot.com ?
i am extremely new to the programming field , so hopefully everybody don't mind about my newbie question,
also - mind rewording that inverse kinematic paragraph? I would be glad to try and help but I don't really understand what you're saying
I'll just try and guess what you were asking about - yes, the EZ-B can use the sonar sensor included in the Developer's Kit to find it's way around a room on it's own. the Auto Position control can be used to reach a desired position, and then stop at a certain point and continue it's movement. You can read more about the Auto Position controls in the learn section, I believe. I'm not exactly sure about making it so the robot can autonomously detect a surface so that the legs would connect to uneven ground, but I bet it could be done somehow.
I read in the ARC scrip manual, and I do see sin() cos() tan() etc. So if I make a clear flowchart (which include in ARC ) I would be able to use Ex builder to execute the function right ?
For future advance, the EZ camera will work great with IK to produce more nature movement and auto balancing. (I hope)
Sin()
Cos()
Tan()
These are available in the script engine.
Also, I noticed you said you can only read the manual. You can install and use ARC without an EZ-B. You could practice with scripts and use variables, Print or Say to output data while waiting for your kit to arrive etc. I write a lot of scripts without being connected to an EZ-B (in fact I write a lot of scripts without ARC in front of me).
Let talk about the project! As I skim throught the information about about what ARC can do. I am really interested in the feature "track color or movement." In addition to that, it is kind of inverted kinematic relation control the camera servo. Any opinion for this friends?
I post my YouTube channel please check out some of my project.
If you wish to test, I would recommend connecting one of your servos to the ez-b v4 with a 7.4v lipo battery and have it move back and forth with some weight for an entire evening while you sleep. I suspect it will still be fine in the morning
All R/C cars, planes, boats, etc... use 7.4v batteries to power their servos - and none use regulators. FYI
And this is my current project with Botboarduino rover with arm.
Thank you for the dimension of the EXB servo, I measeure the aluminum chaissis I already had and they are fit. Yeah.
Now I just have to save save save money, and read the manual.
Hope you folk don't mind all my questions. *blush* *blush*
In the meantime you can play with ARC and see how powerful it is....
I was the one who was not clear... I was asking for you to test with one servo with a 7.4v lipo - test with just one. Run one servo as a test with some weight on it over night. That way you can verify the servos will not be damaged with 7.4v for long operational time.
Just test with one servo to make sure it works - that way you decrease the risk of damaging 18 servos. Instead, at worst you only damage one - if the test is negative.
I have faith that the servo will work fine with 7.4v lipo. This is because not many ppl notice but all R/C are 7.4v with standard servos. This includes all R/C planes, cars, boats, etc...
Quad turning. Just saving for EZ B "brain".
Merry Christmas everyone.
I just have to learn more about ARC. Lol I am little lost now, just because I don't have the EZ Bv4 yet.
And DJ how did you make the robot tracking and following object ?
Please point it out if I get it wrong , but basicly the camera send back the coordinate of the object (right ?, this is just my assumption). And how did you convert it back to the individual servo value ( for example the kneck servo or head servo)?
I hope I phrase my question clear enough.
it'll make sense when you get the robot
Thank you DJ.
Can't wait until the day my robot officially not "blind"