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hstaam
(@hstaam)
Eminent Member
Joined: 4 months ago
Posts: 43
2019-07-25 1:27 pm  

Also don't forget that I2C requires that both the clock and the data lines be pulled up to +5Volts (with 4.7K resistors each)

hj

hj


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Spyder
(@spyder)
Reputable Member
Joined: 4 months ago
Posts: 427
2019-07-25 10:46 pm  

I've found that if you have anything more than a single small servo (sg90) you're gonna want to supply power directly to the servos otherwise you'll think you did something wrong when all it is is a lack of power


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Aleksandr93
(@aleksandr93)
New Member
Joined: 1 month ago
Posts: 2
2019-09-15 6:20 pm  

I want to do my own real bot. But for now I decaded to do more easer project for training. I am going to upgrade this project to real bot but it wont be very soon.


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Robo Pi
(@robo-pi)
Prominent Member
Joined: 4 months ago
Posts: 883
2019-09-15 8:25 pm  

@aleksandr93

Looks like you're well on your way into robotics.  Nice work! 👍 

DroneBot Workshop Robotics Engineer
James


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casey
(@casey)
Estimable Member
Joined: 4 months ago
Posts: 150
2019-09-15 10:45 pm  
Posted by: @aleksandr93  I am going to upgrade this project to real bot but it wont be very soon.

Nice start. It is all a learning experience and fun pass time even if you never get to build a "real" robot.

Getting good encoder based motorized wheels is the foundation for any robot and that is the hardest to find for a medium sized robot base unless you have the money to just go out and buy an electric wheel chair which would make the most ideal robot base or restrict yourself to one of those toy robotic kits and concentrate on how to program them instead.

 

This post was modified 4 weeks ago by casey

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codecage
(@codecage)
Member Moderator
Joined: 4 months ago
Posts: 283
2019-09-28 3:05 pm  

Any of the 3D printer owners on the Forum looked into the Mars Rover mentioned in another thread here on the post?

SteveG


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ETinkerer
(@etinkerer)
Trusted Member
Joined: 4 months ago
Posts: 58
2019-09-28 5:40 pm  
Posted by: @codecage

Any of the 3D printer owners on the Forum looked into the Mars Rover mentioned in another thread here on the post?

Not exactly 3D printed but still pretty impressive and cool. If i had the skills and tools to build one I'd make a full size one to drive around.

 

Pat

The most exciting phrase to hear in science, the one that heralds new discoveries, is not “Eureka!” (I found it!) but “That's funny …”
Author: Isaac Asimov


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ZeFerby
(@zeferby)
Eminent Member
Joined: 3 weeks ago
Posts: 30
2019-10-08 11:09 pm  

My first steps in the robotics arena : https://www.instructables.com/id/EEZYbotARM/

I just finished printing+assembing this thing, tomorrow begins the electronics fun...

Eric


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Spyder
(@spyder)
Reputable Member
Joined: 4 months ago
Posts: 427
2019-10-09 4:27 am  

@zeferby

Nice project. I made one. Just remember that when using the bluetooth modules that they're limited to 3.3 volts. The 5 volts that the arduino uses is likely to kill them

I ended up buying a handful of the bi-directional level converters that adafruit sells. They change the 3.3 to 5, and the 5 back down to 3.3


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