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Hi All, First Post And Few Questions

Hey everyone,

I need to build an autonomous robot that would serve the function of a mini fork lift. I have researched lot of kits/options and have decided to go with EZ-Robot. I been lurking on the forum for last week or so and the live and helpful community is one of the primary reasons I have decided to choose EZ-Robot:)

I am currently trying to figure out what all parts I should order and I was hoping if people could tell me if there are any other must have items I should buy along with these:

EZ-Robot Complete Kit
2X Peripheral Cable
USB Bluetooth Antenna
Pan/Tilt for Camera or Sensor

Basically I dont want to start working and realize that I actually need more wires to use all the items in the complete kit etc...

Also, my first iteration of the robot is going to be using the recorder to record the robot from going from Point A to Point B and then playing that recording back to make it go down the same path again. How accurate is recorder for this? Is my logic correct in thinking that the recorder will allow me to easily create a path following robot without having to actually use a physical path line(with IR sensors or whatever)?

I am a complete newbie to this so I apologize in advance if I keep asking basic questions in new few weeks haha

Thanks!

United Kingdom
#1  
I would get more than 2 peripheral cables. A lot more. I've used around 40 in my current build so far what with switching circuits, voltage monitors, ping sensors, ir sensors, h-bridge and generally extending servos.

Sit down and plan out the robot. Think what will it need. How will it know there is a wall in front of it? How will it know it's about to collide with an object? Will it need to be self charging? What other sensors might it need?

I've not used the recorder, I know there is a bug with it for long recordings.

Keep asking questions, it's what we are here to answer:)

And welcome to the forum
#2  
Thanks Rich! Would it be better for me to get the "Jumper Cable Kit" then? It dosent mention if it includes Peripheral Cables. Just says male to male and female to female.

Good point on planning out the robot, I have a rough idea but I am also so new with all this that I dont think I am even ready to plan out a complete robot. I'm hoping to get my feet wet with the basic first iteration and then start planning a more complex robot with sensors etc.
United Kingdom
#3  
It's personal preference. I prefer to use the servo extensions (or peripheral cables as they are sometimes called).

If you are going to require various sensors and a H-Bridge to drive the robot's DC motors (depending on how you plan for the robot to move) allow 1 cable per sensor (ultra sonic uses 2) and 5 for the H-Bridge. Throw in a few for good measure (you will use them eventually)... so you're looking at 10-20 to start with. You can always order more later if you need them, 10 should get you going on a basic robot though.

I just counted up how many I used on my "test bot" which is a very basic robot. 3 for sensors, 1 for camera and plan to use 4 more for the motor driver when I get around to it.

On the other hand, my hearoid project uses 1 for eyes, 5 for mouth, 2 for battery monitors, 4 for IR sensors, 4 for ultra sonic, 1 for camera, 4 for motor driver, 10 for arm servos, 2 for pan/tilt servos, 1 for LCD display and I'm sure I've missed some so 34 plus whatever I missed.

I'm not sure what comes in the Jumper Cable Kit (other than Jumper Cables).
#4  
are the peripheral cables the same as the 3 pins cables you can get at Fry's for Fan's, extensions etc...
United Kingdom
#5  

User-inserted image


Female to male, 3 pin. They come in various lengths on ebay, search for servo cable. Cheap from China but buy with caution, I've read a lot of bad reports of poor quality cables. The ones in EZ-Robot's store are good quality :).
#7  
Another way is to make your own servo cables. Someone posted a site here onetime of a hobby shop that deals with the wires and terminals. I have not dealt with them yet but they have the parts.
Servo wires

I have not used the recorder yet my self as well. But To be accurate you need a feedback from the wheels, like an encoder or potentiometer.. You can make a rough way to drive straight by playing with the settings of your drives..

The best thing I can say for getting into robotics is curiosity, and the want to tinker.

You plan and build a robot but it will never (most cases) be actually done.

If you have any problems don't hesitate to ask. People here are great and guys like @Rich are very sharp and like to help.
#9  
Hi ff7reborn

Speaking of mini fork lift, you will have to consider what happens if your mini fork lift hits a obstacle on its recorded path, How will it find the way back if it comes out of path. I'll think you have to have some kind of navigations/orientation system.

It is interesting, I have been working with AGVs for 8 years and that was fun and cool.:)
#10  
Welcome to the forum! I like the idea of a fork lift robot.
There are lots of fork lift toys out there waiting for an EZ-B to control them:)
Just do an Image search on Google for RC Fork Lift Toy and there are hundreds of cool links.

Below are two of my favorites....


heavy-duty-rc-forklift


ATR-Terrain-Robot