Sudo the Banned
As you may know, I'm building a humanoid robot. I'm looking for a good gyroscopic sensor that could fit into my robot (the new back allows a bit more space, so if it's bigger it could fit) and is easier to code (I need it to stabilize the robot and tell it to get back up if it falls over). I've been looking at a gyroscopic 3-axis sensor at radioshack: http://www.radioshack.com/product/index.jsp?productId=12310182 Would this be easy to work with? Thanks a bunch!
EDIT: Also, this is the distribution block i'm getting for my 4 micro servos. How would I connect the ground/power to this and the signal to the EZ-B, and the battery to the distribution block? Once again, thanks. http://www.radioshack.com/product/index.jsp?productId=2103983&locale=en_US
Yes, the EZ-B is going to be powered by a 12v battery, so the 6v micro servos will be powered separately.
Spark fun Electronics has an excellent assortment of 3 axis accelerometers, I have used one for a two wheel balance bot and others they are great!
Am I missing something here? cant the servo's be plugged into the V4 board , the plugs are 5v tolerant, then a 3 axis accelerometer into the v4 board as a sensor, read the sensor thru script and output to the servo's thru script where needed.
He could power them through the board but he has a lot of them and the draw could brown out the board so he's providing power to them separately.
Here's the project thread.
Ez-robot Humanoid Project
I've never used a gyro but I'm guessing it would plug into the board but it may require a little bit of work. Kind of like an H-bridge does to connect it the the ezb v3
@Antron007... Brown outs are not the main reason... If we're still talking 6V servos here... He can't power the 6V servos through the V4 board if he is using a 12V battery... Changes in V4 have seen the removal of the onboard 5V regulator... So each +pin has the same voltage as input voltage. In other words, 12V in equals 12V out on each +pin...
@Putt Putt You're missing a little bit... 5v tolerant means input on the pin... Output on the +pin is whatever voltage you are using to run the V4 board (see my reply to Antron007)....
Hey no prob, I wasn't aware of the no voltage reg. And yes my mouth was going faster than my brain I'm aware that 5v tolerant is an input term.
Back to the V4...where the hell is the manual and the specs? seems weird to sell an electronic device without the electrical specs, It might be just me but I for one will never purchase and electronic device until I know what the specs are, I know , I know, the EZ-B V4 is wonderful, there marvelous there the best thing since sliced bread but its an industry standard to provide the specs before purchase not after
Anyhow yes, split the wires on the servo's, provide 6v to them and plug the signal wire to the v4 outputs, the accelerometer has analog outputs that would go to the v4 analog inputs ( 3 of them ) and they can be powered by various voltages depending on which one you buy.
On each output the accelerometer outputs a variable, on the one i'm using , from 0 to 512 for one direction and from 0 to -512 for the other direction.
It's a simple matter of using those numbers in a variable in EZ-B to manipulate the servo outputs.
I know i ramble on but I do have a Hexapod that runs 20 HS-5645MG servo's that is programmed with very similar scripting as EZ-B but uses an Atom BotBoard and a SSC-32 serial control board with the aforementioned accelerometer from Spark Fun.
Manual, specs and videos are all "Coming Soon". I do believe that is one of their current major tasks.