Page 1 of 2

Ultra-Sonic Ranger - GH-311RT DATASHEET?

Posted: Fri Dec 26, 2008 4:54 am
by giorgiodidon
hi all, any chance to have a datasheet or any info of the Ultra-Sonic Ranger - GH-311RT, i'd like to use it with arduino.
thank you
giorgio

Re: Ultra-Sonic Ranger - GH-311RT DATASHEET?

Posted: Sun Dec 28, 2008 6:26 pm
by esp
Spec:
Input Voltage: DC 6-12V
Static current: max 2mA
Output signal: 0-5V (Output high when obstable in range)
Sentry Angle: max 15 degree
Sentry Distance: 2-3000mm

Usageļ¼š
Supply module with 6-12V, the output will be 5V while obstacle in range, or 0V if not.

We will have detailed tutor of the module we supply, it will take some time anyway :)
Please let us know if anything needed.

Re: Ultra-Sonic Ranger - GH-311RT DATASHEET?

Posted: Wed Jan 07, 2009 4:05 pm
by giorgiodidon
hi, thank you for the answer, the ranger semms working well, but the range seems to be very short, no more than 30/40 cm, i give power whit a 9 volt battery. sny idea on that?
thank you
giorgio

Re: Ultra-Sonic Ranger - GH-311RT DATASHEET?

Posted: Wed Jan 07, 2009 11:42 pm
by esp
We have tested it here, the distance is about 2.2m under 9V, same configuration. The angle is only 15 degree, maybe you could verify by facing it to wall? :)

Re: Ultra-Sonic Ranger - GH-311RT DATASHEET?

Posted: Fri Jan 16, 2009 10:01 am
by esp
http://arduino.cc/en/Tutorial/Ping
It is feasible to measure distance with an Arduino with this module too.

Re: Ultra-Sonic Ranger - GH-311RT DATASHEET?

Posted: Sat Jan 17, 2009 4:54 am
by giorgiodidon
hi, i don't think that the gh-311rt will work as distance meter, it seems to have just an output pin with HIGH LOW status when obstacle detected, the PING mudule from sparkfun has input output signal pin.
or not!?
thank you
giorgio

Re: Ultra-Sonic Ranger - GH-311RT DATASHEET?

Posted: Sat Jan 17, 2009 9:03 am
by esp
We have used the ping pde for a quick test, it will measure out distance.

Since the code is for another module, we would need to finetune for 1) calculation formula, 2)continous update (the data sent to serial will update whenever obstacle is removed).

Re: Ultra-Sonic Ranger - GH-311RT DATASHEET?

Posted: Fri Jan 23, 2009 3:43 am
by bleepbloop
Hi, according to your last reply. Does this mean that the Output is also an input like the PING module. Can the GH-311RT measure distance as well? I bought these sensors and thought that the output was analog according to distance. I realize now that this is not the case. Please verify.

Re: Ultra-Sonic Ranger - GH-311RT DATASHEET?

Posted: Sun Feb 01, 2009 10:46 am
by esp
Yes, you will witness the distance change using PING code. We will fine tune it and release our version. Thanks!

Re: Ultra-Sonic Ranger - GH-311RT DATASHEET?

Posted: Sun Feb 15, 2009 9:05 am
by bleepbloop
I tried the ping code today and I got the following results:
0in, 0cm
0in, 0cm
0in, 0cm
463976in, 1183939cm
0in, 0cm
1536545in, 3920839cm
0in, 0cm
0in, 0cm
0in, 0cm
0in, 0cm
0in, 0cm
0in, 0cm
0in, 0cm
0in, 0cm
0in, 0cm
312580in, 797619cm
882601in, 2252155cm
0in, 0cm
0in, 0cm
0in, 0cm
0in, 0cm
0in, 0cm
0in, 0cm
0in, 0cm
1257192in, 3208009cm
It stops working after an object is detected, stops outputing data. I have to remove the signal pin for a while and remove power. It displays the high numbers when it comes back online.
Any suggestions? My decision on buying more depends on getting this to work.