This app will connect to VFDs that drive ac motors through Bluetooth using a protocol, I have a PDF for this protocol and I also made an Eclipse project that will auto calculate the checksum in the protocol, the checksum is all the characters added together in hex, then the last 2 digits of the result are put at the end of the original string.
This app would have a very simple GUI controlling the different variables that go into making the string then sending it to the drive through bluetooth.
Example: to RUN FORWARD at 10.0 Hz = "(10100)43"
"(" start, "1" FORWARD, "0100" 10.0 Hz, ")" end, "43" checksum
I think I would like it if the app used a hamburger view setting to switch between past paired devices to make it easy to establish a connection with the Bluetooth device.
As far as changing the actual values, maybe a seekbar for changing the speed and a toggle for determining forward or reverse, and the same thing for changing the value of acceleration time and deceleration time. Also displaying the values of the variables that they are changing and at that same spot let them be able to type it in manually as well.
The features above are the main ones, but would also want to be able to use other commands as well, such as sending the (0)81 Monitor command, which the VFD will return with many numbers in a string such as bus voltage, temperature, and current status.
The examples of basic communication with the VFD through a Bluetooth terminal app will be provided. In one command that I sent it responded with nothing, this was because the value in the command was over the max allowed, in the provided protocol PDF, all the MIN and MAX values are provided.
I did start making this app myself, I am not a complete beginner in programming, but I wouldn't have enough time to complete this. In simple terms, it's like a Bluetooth terminal app, but instead it will have a comfortable GUI and implemented with the proprietary protocol.
If there are any questions about preferences or anything please ask me. I think the budget for this project should be somewhere around $150 to $300. The result I would like are all the necessary files in a project folder that I can compile into an APK, and the APK itself.
Hi
I have rich experiences in android and ios area.
I have developed several bluetooth control apps.
I can do your task well.
Please contact me. Thanks.
Relevant Skills and Experience
I am native app developer for android and ios.
https://www.freelancer.com/projects/Graphic-Design/Android-App-for-Bluetooth-LED/
Proposed Milestones
$400 USD - def
$400 USD em 10 dias
4,8 (131 avaliações)
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40 freelancers estão ofertando em média $616 USD for esse trabalho
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This is my freelancer.com profile and please check my profile ..
Relevant Skills and Experience
If you contact with me and working together , then you will be see talented programmer .. :)
Let's built Business relationship together.
Regards Lee
Proposed Milestones
$555 USD - milestone
Hi
My name is Po.
I am a Senior Mobile App Developer.
I have already developed many Android and iPhone apps.
Please send me your detail requirements. We can discuss it.
Relevant Skills and Experience
My skills are Java, Objective C and Swift.
Proposed Milestones
$526 USD - discuss
Hello Sir, how are you?
I have enough experience on Mobile App development.
I read your description carefully and understand your requirements fully.
Relevant Skills and Experience
I have enough experience on Mobile App development and Electrical Engineering.
I already have completed similar Android - Hardware interaction via BLE projects several times.
Proposed Milestones
$555 USD - project
Hi
I work towards providing reliable, relevant and robust IT solutions at most competitive prices to my customers. I ensure 100% customer satisfaction
so lets start
Thanks
Relevant Skills and Experience
Android, App Developer, C++ Programming, Java
Proposed Milestones
$463 USD - milesotne
Dear sir
Thank you for your description,I have checked your project and understood all your requirements
So I can help you
Relevant Skills and Experience
I have already developed many site so that I have many top skill
Please check my reviews and portfolios
Proposed Milestones
$555 USD - all
i have good knowledge about bluetooth stack and bluetooth profile. i also develop a simple mouse/keyboard over bluetooth android. let me know the protocol was used and i can help you
Hi There,
I-TECH is ready to deliver the data logging app. We are expert in dealing such projects. Feel free to contact us.
Regards,
Shahbaz.
Relevant Skills and Experience
We are a company having rich experience in hardware and android interfacing. We will deliver fully working app. feel free to contact us.
Best Regards,
Shahbaz.
Proposed Milestones
$600 USD - User interface
$600 USD - Data logging
Hello!
We are a creative web/mobile development team with experience in creating custom apps with complex interfaces, web API integrated dashboards and 2d games. We can send you an example video with quick run through interface of several our apps.
We are available and will be happy to help you with the project. Looking forward for further discussion.
Best Regards,
Sergii Savchenko
CEO @ PineDev Studio
This project sounds very interesting. I have worked with Bluetooth in android before so have all necessary knowledge for implementing the functionality
Relevant Skills and Experience
Java - 9 years experience
Android - 4 years experience
Proposed Milestones
$100 USD - Initial Delivery
$75 USD - Any Required Changes Implemented
$75 USD - Project Completion
We have analyst your job details and as per that we would like to clear few things with you, kindly Personal Message us, so we can discuss.
Relevant Skills and Experience
We have analyst your job details and as per that we would like to clear few things with you, kindly Personal Message us, so we can discuss.
Proposed Milestones
$277 USD - let's discuss
Hi, I am an experienced developer and I'm sure I can complete your project asap. Please contact me and tell about your project details. I promise a high quality and punctual work. Thanks.
Relevant Skills and Experience
Android
Proposed Milestones
$555 USD - 2
Hi, I’m a Web Designer/Developer from the UK. My name is Mike. Your project description sounds interesting to me and I do have skills & experience that are required to complete this project.
Relevant Skills and Experience
UX/UI design, front end coding, WordPrss/PHP development.
Proposed Milestones
$555 USD - project milestone
Let me know when you have a minute for a quick chat.
Hello Sir,
We have checked your requirement and have some query. So please message us to discuss on it. So after understanding it well, we can start work.
Thanks .
Stay tuned, I'm still working on this proposal.
You need an Android App to send messages to a VFD using a bluetooth protocol. To tell you the truth, I have more than half of the app already made. In inbox, I will show you a previously made app.
Relevant Skills and Experience
Android, App Dev, Java, microcontrollers, embedded systems, Bluetooth protocol.
Proposed Milestones
$280 USD - Android App
Hi,
I am really excited about this job, i have done much work on this topic,
Best Regards
Engr Nouman
Relevant Skills and Experience
android developer
Proposed Milestones
$250 USD - FNL
Hello I am professional Android programmer and have lot of experience with this. your project sounds very interesting and I will like to work on it for you!
Hey, how’s it going? My name is Mike, I’m a Web Designer & Developer from Boston. I've had a look at your project description and feel that my skills match your requirements perfectly.
Relevant Skills and Experience
Graphic Design, Front End Development, PHP, WordPress
Proposed Milestones
$555 USD - project milestone
I recently did a very similar project which I can share with you.