Build a Bluetooth Robot - Part 3 w/ MIT App Inventor
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- Опубликовано: 19 май 2017
- This is a tutorial on how to build a Bluetooth Robot.
It is controlled by a cellphone running an app I built using MIT App Inventor.
I am using an Arduino Mega because I plan to add more functionality later.
This Video was shot using "Mirror Image" so if it looks backward to you, then your not Crazy. Sorry, I won't do this in the future!
The Motor Shield is an L293d not an L298 as may be labeled in the video
The App and Arduino code will be uploaded to Github.
github.com/mkconer/bluetoothr...
The App can be found at the MIT App Inventor Gallery by searching for "Build Bluetooth Robot" - you will need and App Inventor Account - its free!
Go here for more information on how to import the app
from MIT App Inventor
appinventor.mit.edu/explore/ai...
The 3D printed Arduino Mega mount can be found here.
www.thingiverse.com/thing:53857
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Развлечения
Super nice tutorial.thanks ,man
I'm having a problem. The movement buttons doesn't work. The phone vibrates when I click the buttons but there is no command in the notification window and my robot isn't moving. Please help
How did you create Bluetooth application? Did you upload code or just used drag and drop?
Hi , what pins do you use for RX,TX ?
@EZtech i have problem with code
How much of this is changed to run it's bigger counterpart? Does the L293D library translate to your sabertooth driver, or do you just include the sabertooth library instead? We have an HC-06 on the way, because we have had months worth of problems with the HC-08, and so far it's no exception with the MIT app inventor. I really wish I had a direct line of dialog with you, so I could pick your brain. Lol.
Kenneth Livingston Much of the code is the same, except the motor control. What are you wanting to build? What motors are you using? Will you be using the sabertooth controller? What about autonomy, GPS, navigation, etc?
EZtech , we are using two motors salvaged from an electric wheelchair, and a sabertooth controller, I wanna say 25x2. The project is mocked up on a basic wood base right now, but eventually is supposed to be an autonomous/semi-autonomous push feel mower. We've tried to play with God navigation, but had some problems. We had it functioning with IR at one point, but have decided that Bluetooth functionality is definitely priority. In the last several months, your videos, and your github have been the best lead we've found.
Is this a school project? Where are you at in the project now? Have you got the sabertooth and the Arduino talking to each other yet? Are you able to control the motors via code in the Arduino?
EZtech It's not a school project, more of a personal tinker. Kind of wish it were a school project, maybe one of the two is us working on it would have more robotics/coding experience. Lol. We have got them communicating, and actually functions as an object avoidance robot with IR sensors. So, when we use the sabertooth library, and some IR sensors, we've coded it to respond. Just implementing any other means of navigation has proven challenging, even if we exclude the IR sensors altogether.
The way I started was to first build a smaller robot. Working with a large robot can be really annoying, especially when it bangs into your wife's furniture. Then I got the bluetooth control working(left, right, forward, reverse) via App Inventor then I added the hmc5883l compass for direction control, after that I finally added the GPS, finally I added ping sensors to "avoid" objects - although this is where I stopped on the project. What part of the project can I help you with? I really need to upload more videos and create more Instructables in the near future. I had planned to do that this winter. Basically I want to add to the "build a bluetooth robot" video series by adding compass and GPS control to the robot you see in this video.