
dkennyken
United Kingdom
Asked
— Edited
Hi all, I'm new to this forum and new to building robots.
Got some inspiration from DJ Sures 1980's Omnibot build.
I've got myself a EZ-B v3 control board and an old omnibot but was wondering if there is a way to purchase the rest of the kit or at least the wifi camera for v3?
If not any advice on the best servos to use would be appreciated. I have been looking at AS-17 servos and HXT 900s.
Thanks for taking the time to read my post and hope to hear from anyone soon
Ken.
And now looking good with some chrome
Can anybody tell me whether the lcd display will run with ez-b and which type of lead I'm gonna need?
Sorry dude, been in bed most of the weekend...
Before you buy any display make sure you can get a decent datasheet for it. You will need to know the commands to use to send the data to the display. I've had little luck with ebay displays since they usually come from someone who doesn't speak English and don't come with Datasheets.
It looks like it can be either Serial or I2C. Which means, if in serial mode you can use a simple 3 wire extension connected to a digital port of the EZ-B and use the SendSerial() command to send the data to the display. If using it in I2C mode you need 4 wires connected to the EZ-B's I2C port.
How to use it is the main question, you will need to know the serial or I2C commands to send data to the display. It's not as simple as putting SendSerial(D0, "This is text"). There are usually a bunch of commands needed to set the cursor position, then display the text, then exit from text display mode...
Get the datasheet (not the Arduino code, that's usually pretty much useless to us) before you buy anything.
If you only want to display text then I always recommend using Devantech LCDs from Robot Electronics Link. These are what I always use, they are simple to use and are of a very decent quality. They also have the ability to set up custom characters (see Melvin's battery monitor display for an example).
Link to the ebay item or post the item number and I'll have a better look at it when I get the chance.
Cheers for the reply Rich.
Item number is 261281402779.
If it gets too technical I may just put my samsung gs2 phone inside it instead or buy a monitor from Robot Electronics
I've asked the seller for a data sheet, I used google translate lol.
Also ordered a blinkm smart LED, probably for in his head although I may fit it in his chest?
No info on the display at all on that auction so I would personally steer clear.
The other one you put a picture up of does have a datasheet with the commands required. Looking at it, it's very similar to the LCD I already have so it should be pretty straight forward to use. I ordered one (it was only £10) so will let you know when it turns up.
BlinkM is simple to use, it's natively supported by ARC and easy to script too, I think I've done a bit of a tutorial on it (or it may have been just a few examples). Awesome little bit of kit
I already ordered the 1st one yesterday
I've asked the seller for a data sheet and if not a refund.
Silly me!
@Rich, (or anyone else who can help) what would be the best method of connecting multiple servos or accessories to the battery? Is there a specific connector I can get to link them all to the same power source? Or am I best making some sort of board that links them all together or even using chock blocks?
On another note I've managed to cancel the lcd and get a refund
let me know how the one you ordered works out please Rich.
@dkenny , there are lots of options but I personally have been using barrier strips and spade connectors. If you flatten the spade out you can get 3 to 5 under one screw but I try to keep one spade per connection. It's easy and you won't need to wait for a product in the mail to continue on your project.
http://www.radioshack.com/product/index.jsp?productId=2103229
Don't forget to get jumpers too so you can distribute the power to multiple posts. These can handle up to 30 amps of current so your good with these.