You should make an airsoft mini tank that shoots bbs and can lay smoke as well that would you would be able to sell if you made it pretty tough as well I would buy one for around £300
Could you share more info about your project, source etc??? I'm interested to build something like that. I was interesting how can I get back some data from sensors to pc. And how hard is to write software which can receive that data and do some action. Thanks!
Look at my stepper motor videos in the video description you will find a link to my google code page. I have source up for many things. You can get data back to the pc using a very basic serial connection. Get an arduino, load up a sketch to read sensor values, send them to the pc with serial.print which sends it over the serial to usb connection. Programs can be written to open the serial port....read the data...decide...and send data back to the arduino. It will take some time to do.
@Halo2maniaccc Yeah I found the link after I wrote comment, sorry. I will study your projects. At this moment I don't know how to realize such project: robot moves somewhere and when he sees wall, he sends coordinates to PC. And on PC I want to draw this, so basically robot moves around playground and gives wall coordinates to PC, and I draw some kind of map on computers screen. Dunno from which way to start, but will study Internets :|
Yep, Sparkfun sells some that are really nice but apparently the manufacturer has stopped making them so I will have to grab a few before they run out. Infrared sensors are better for angled distances because light reflects back but sounds just pings off in the other direction.
You can get them from vex robotics just google them, they are a very large and reputable company. I will warn you it is not cheap the cheapest kit is $300 which includes some nice stuff plus accessories. It is compatible with arduino but not directly you won't find lots of tutorials but all of the sensors are just regular sensors in fancy cases so the interfaces are the same, and the motors run off pwm and the servos.
for the stair detection just point the ultrasonic sensor down and measure the distance between it and the ground, then incorporate in the program that if the distance increases rapidly, it will either stop the bot or warn u
Well for stair detection you got almost everything but you need to extend the sensor out of the robot like 4 to 6 inches. That way the robot has time to stop.
The bots range right now is around 90ft because of the bluetooth adapter on the laptop, the bluetooth on the robot itself has a range of 350ft. So if I bought another module and hooked it up to the laptop I could get a 350ft link but the video camera definitely won't transmit that far!
Yes and no, you can't simply hook up the camera to the bluetooth unit and say work. You would first have to get a camera module that you can access on the hardware level (sparkfun has them) then you would capture a picture and turn the image into a serial stream which would be sent over bluetooth. On the other end the serial stream would be received and turned into an image. I am not sure if the bluetooth serial link could handle the amount of data though.
I used to do stuff like this - just not as complicated. I would just rewire a remote control rc card to connect to the parrallel port on my pc using optioelectronic chips. No feedback from the vehicle though. That's very cool.
I used to control speed by pulsing the power. I could get it to barely crawl to going max speed. It worked out pretty well. Just a simple for-next loop in my control code did it. I am sure you can figure it out.
I don't build these but could the stair detection be as simle as pointing the front sensers down to say 45 degrees and having the alarm go off when the distance increases past a certain distance.
Its not exactly that simple but its along those lines. The sensor would have to be extended to say 4 - 6 inches from the front of the robot as the robot takes at least that much to come to a halt. The sensor would also have to face directly down, 45 degrees may not work right because the ultrasonic pulse could get deflected elsewhere instead of back into the sensor where it needs to go. But you are right about the alarm if the distance was any more than a few inches then the robot would stop.
Thanks, I'll make another video of it being controlled by the wii remote (maybe today if I have enough time). The wii remote is simply coding but I have to get the lights out and the tripod ect.... to film correctly. Low light conditions usually cause annoying fuzzy videos.
You should make an airsoft mini tank that shoots bbs and can lay smoke as well that would you would be able to sell if you made it pretty tough as well I would buy one for around £300
Mattsfridge 3 months ago
Could you share more info about your project, source etc??? I'm interested to build something like that. I was interesting how can I get back some data from sensors to pc. And how hard is to write software which can receive that data and do some action. Thanks!
Tvinky 4 months ago
Look at my stepper motor videos in the video description you will find a link to my google code page. I have source up for many things. You can get data back to the pc using a very basic serial connection. Get an arduino, load up a sketch to read sensor values, send them to the pc with serial.print which sends it over the serial to usb connection. Programs can be written to open the serial port....read the data...decide...and send data back to the arduino. It will take some time to do.
Halo2maniaccc 4 months ago
@Halo2maniaccc Yeah I found the link after I wrote comment, sorry. I will study your projects. At this moment I don't know how to realize such project: robot moves somewhere and when he sees wall, he sends coordinates to PC. And on PC I want to draw this, so basically robot moves around playground and gives wall coordinates to PC, and I draw some kind of map on computers screen. Dunno from which way to start, but will study Internets :|
Tvinky 4 months ago
Keep it up
msg00pak 1 year ago
If you used and infrared range finder it would probably work on carpet ad laminent
javelinthrower1 2 years ago
Yep, Sparkfun sells some that are really nice but apparently the manufacturer has stopped making them so I will have to grab a few before they run out. Infrared sensors are better for angled distances because light reflects back but sounds just pings off in the other direction.
Halo2maniaccc 2 years ago
for the stair detection you could try to angle the ultrasonic distance sensor at a 45-50 degree downward angle.
javelinthrower1 2 years ago
Yes that can be done but on a hard laminate surface not carpet the ultrasonic signal could ping off which can be a problem.
BTW someone asked this same question in the comments section a few posts down.
Halo2maniaccc 2 years ago
where do you get the vex parts and are they compatible with the arduino?
javelinthrower1 2 years ago
You can get them from vex robotics just google them, they are a very large and reputable company. I will warn you it is not cheap the cheapest kit is $300 which includes some nice stuff plus accessories. It is compatible with arduino but not directly you won't find lots of tutorials but all of the sensors are just regular sensors in fancy cases so the interfaces are the same, and the motors run off pwm and the servos.
Halo2maniaccc 2 years ago
for the stair detection just point the ultrasonic sensor down and measure the distance between it and the ground, then incorporate in the program that if the distance increases rapidly, it will either stop the bot or warn u
also whts the bots range?
hellkid94 2 years ago
Well for stair detection you got almost everything but you need to extend the sensor out of the robot like 4 to 6 inches. That way the robot has time to stop.
The bots range right now is around 90ft because of the bluetooth adapter on the laptop, the bluetooth on the robot itself has a range of 350ft. So if I bought another module and hooked it up to the laptop I could get a 350ft link but the video camera definitely won't transmit that far!
Halo2maniaccc 2 years ago
@Halo2maniaccc cant you hook up the camera to the bluetooth too
copperhead228 1 year ago
Yes and no, you can't simply hook up the camera to the bluetooth unit and say work. You would first have to get a camera module that you can access on the hardware level (sparkfun has them) then you would capture a picture and turn the image into a serial stream which would be sent over bluetooth. On the other end the serial stream would be received and turned into an image. I am not sure if the bluetooth serial link could handle the amount of data though.
This is not an easy task to do!
Halo2maniaccc 1 year ago
I used to do stuff like this - just not as complicated. I would just rewire a remote control rc card to connect to the parrallel port on my pc using optioelectronic chips. No feedback from the vehicle though. That's very cool.
I used to control speed by pulsing the power. I could get it to barely crawl to going max speed. It worked out pretty well. Just a simple for-next loop in my control code did it. I am sure you can figure it out.
Anyway - thanks for the video.
jbbw667 2 years ago
I don't build these but could the stair detection be as simle as pointing the front sensers down to say 45 degrees and having the alarm go off when the distance increases past a certain distance.
You make me envious, Good job.
Stormrunner0002 2 years ago
Its not exactly that simple but its along those lines. The sensor would have to be extended to say 4 - 6 inches from the front of the robot as the robot takes at least that much to come to a halt. The sensor would also have to face directly down, 45 degrees may not work right because the ultrasonic pulse could get deflected elsewhere instead of back into the sensor where it needs to go. But you are right about the alarm if the distance was any more than a few inches then the robot would stop.
Halo2maniaccc 2 years ago
this is really sick, please make it wii compatible!
kevmaniac2000 2 years ago
Thanks, I'll make another video of it being controlled by the wii remote (maybe today if I have enough time). The wii remote is simply coding but I have to get the lights out and the tripod ect.... to film correctly. Low light conditions usually cause annoying fuzzy videos.
Halo2maniaccc 2 years ago
AWESOME!!!!
dyldyljkj19 2 years ago