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Arduino Laser Engraver
There are some alternatives such as HC-12 modules. I haven't tried these yet, but apparently they can handle long distances (not sure about latency / transfer rates). You might need to check frequency / transmission power limits in your country. If you are planning to use it in a fixed location, another option is WiFi with a few WiFi repeaters to increase coverage area. WiFi is probably one of the more robust solutions for reliable data transmission (but it is more complicated to use than a serial based interface).
Ah, thanks, but another question : What would you suggest as a communication method that would best be used for long distance?
If you are familiar with C#, you could probably modify the C# application to accept keyboard input, instead of an Xbox controller. However, you would lose fine motor/steering control, as the keyboard can only provide on/off signals (instead of the "analog" sticks / triggers). The wireless communication method doesn't really matter. I like XBee modules (series 1) because they are very simple to setup and use (they work as a serial interface), but they are not reliable over long distances. (If you use something other than XBee / serial, the C# application would need extra modification)
Hey, just wondering if it was possible to control this car using a keyboard instead? If so, what is the most recommended way to achieve this? Also, are XBee modules the best choice if I want to use a keyboard?
Arduino RC Car with FPV Camera
Some time ago I built a Laser Engraver with this GearBest Kit.Unfortunately I have not found a software acceptable and easy to use, so I wrote my own.My software allows to load a picture and send it to the laser engraver quickly and easily.My software is written in a generic way for almost all machines with standard GCode firmawre.At the moment the software is WORK IN PROGRESS currently, in ALPHA testing.As I needed to modulate the laser power (I have a 5500 mW one) I used GRBL firmware version 0.9 (other versions are ON / OFF, 0.9 is PWM)Here the Robot Laser Project page : http://www.robot-eyes.com/en/RobotLaser/I will update soon the page (for now very rough).Please send an email at firstname.lastname@example.org with your opinion, thanks.
glass gravel lamp
Hi, it is probably possible with some modifications - for example, by changing all the communication to WiFi (instead of XBee + WiFi). However, I've never made an Android app, so I'm not sure how difficult it would be.
Hello, Is possible make an app to drive this car by phone (SO: Android)?
Hi,Maybe you solved it and maybe i'm too late, but it might help someone :If your step/mm are not the same on X and Y ($100 and $101 in grbl), get the ratio between steps/mm X and step/mm Y.Then you can go in the arduino program, change const float stepsPerPixel; into :const float stepsPerPixelX = 8;const float stepsPerPixelY = 10; Here 8/10 match my X over Y steps/mm ratio, but you will have to change accordingly.At the end of the document, put your stepsPerPixelX or stepsPerPixelY where you see stepsPerPixel written (use ctrl+f).depending on the kind of move. You will now have a scaled X and Y :)
Scratch Build an RC Car with CAD and Rapid Prototyping
Hi there, amazing project, really liked ur explainations as well. I need some help. I am currently working on making a similar project, but instead of a laser im using a camera. However, the precision I need for the X and Y direction is 20 microns with minimal backlash. I am planning to use a 0.9 deg/step stepper motor and also a stepper driver for microstepping. However, I am not sure if this motor would be correct for this project and which stepper driver to get. I would love some help. Thanks!
What is the transistor that you used, it surely must handle all the current that is passing through the ld.
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