
okidey
Hello.
I am intending to use a total of 19 servo's in my robot. 1 servo to sweep the
Ultrasonic pic sensor, and the other 18 servo's for the legs and movement of
the robot. Ive read in the tutorial for connecting the ping sensor, that I will
need to hook it up to 2 I/O ports. But with 19 servo's connected on the board,
I would only have 1 digital port left.
I notice those 8 additional analog ports on the board, is it possible to use those
analog ports and connect servo's or sensors to those? I was thinking of maybe
adding a speaker or some leds if possible. Can those analog ports be used for
such things too?
Thanks,
Kristian.
Alan
19 servos is awesome
Radio Shack is not cheap, but they are in almost every town in the US and keep a good inventory level of the limited stuff they do sell, so if you are in a hurry, you can usually get what you are looking for same day.
http://www.radioshack.com/product/index.jsp?productId=12326359
Alan
So Using those analog ports for the echo or trigger is not an option?
Kristian.
In another thread about the Parallax, someone asked if we could tie the transmit and receive on DJ's ping sensor to the same digital port, and I don't think that was ever answered.
Radioshack is not the only source for Parallax. I am sure you can find a European in not Dutch distributor.
Alan
myself just yet. But I'm curious to know if that works too.
By now I'm also wondering what those analog ports are for, or
if and how they can be used?
Kristian.
Analog ports are used for things like voltage or temperature meters, where you are expecting to receive a range of values (digital ports are on/off only).
The tutorial section on this site has some good examples of how they are used.
Alan
Thats interesting, thanks. I have read the manual but couldn't really
get an idea what they are used for. I'll read into the tutorial section more.
Kristian.
Alan
http://antratek.nl/
PhG
Thanks! They have loads of things, very nice! I will be
ordering there for sure.
Kristian.
sensor together for use with 1 I/O port?
Kristian.
Seeedstudio has the exact same 1 line ping)) sensor, but a lot cheaper!
I have it and it works perfectly with the ez-b!
--Click--
there is a way to use trigger and echo tied together,you need a transistor to ping the sensor and thenn it receives,need to add a delay in sending digital output and receiving one