IR detector problems, always works for me :)
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Posts: 46,084
I use the RS sensors on my robot, and have never had a problem. I do not
have any extra averaging code. I simply look for the transition, and tell my
robot to turn the opposite direction accordingly.
I do not use exactly 38 KHZ I have my IR output( 555 timer) detuned to, I
think 36 KHZ.
Sorry I dont have the code at work with me to check the frequency. I did
this to prevent picking up objects a long distance away. My IR output LEDS
are the high output IR ones sold by RS (276-143). I placed them inside the
Chrome LED holders
(RSU 11941804) The IR LED output assembly I place underneith my robot body,
facing out at a 45 degree angle from true front. The Detector module
(276-137) I place on top of the robot body. My body is simply a block of
wood 1/8 Inch thick. This keeps the LED, and the Sensor seperated.
I have never had a false detection, and the system has been bullet proof for me.
The tin sensors can be seen on top of the robot base, facing outwards at a
45 degree angle. Directly under the wood base are the IR output sensors.
Sorry I dont have any more details on the website. I just threw this photo
up quickly for people to see my arrangment.
If anyone wants further details I can send them the sensing code. I placed a
photo of the robot at http://mntnweb.com/hobby/stampy/
At 11:58 AM 3/5/2001 +0100, you wrote:
>Jim
>Please quote the model and where to find it, I have just the same problem
with the RS junk.
>Thanks in advance
>ECO
>
Original Message
>From: "Jim Szymczak" <szymczak@c...>
>To: <basicstamps@yahoogroups.com>
>Sent: lundi 5 mars 2001 00:14
>Subject: Re: [noparse][[/noparse]basicstamps] IR detector problems
>
>
>>
>> I've tested these Radio Shack detectors (and I think thay are overpriced
>> junk).
>> The detectors I am using now work much better and don't require and of this
>> extra circuitry or code to distinguish between low and high (and they are
>> MUCH smaller and 1/3 the cost)
>
>
>
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
Sincerely
Kerry
Admin@M...
WWW server hosting [url=Http://mntnweb.com]Http://mntnweb.com[/url]
Kerry Barlow
p.o. box 21
kirkwood ny
13795
have any extra averaging code. I simply look for the transition, and tell my
robot to turn the opposite direction accordingly.
I do not use exactly 38 KHZ I have my IR output( 555 timer) detuned to, I
think 36 KHZ.
Sorry I dont have the code at work with me to check the frequency. I did
this to prevent picking up objects a long distance away. My IR output LEDS
are the high output IR ones sold by RS (276-143). I placed them inside the
Chrome LED holders
(RSU 11941804) The IR LED output assembly I place underneith my robot body,
facing out at a 45 degree angle from true front. The Detector module
(276-137) I place on top of the robot body. My body is simply a block of
wood 1/8 Inch thick. This keeps the LED, and the Sensor seperated.
I have never had a false detection, and the system has been bullet proof for me.
The tin sensors can be seen on top of the robot base, facing outwards at a
45 degree angle. Directly under the wood base are the IR output sensors.
Sorry I dont have any more details on the website. I just threw this photo
up quickly for people to see my arrangment.
If anyone wants further details I can send them the sensing code. I placed a
photo of the robot at http://mntnweb.com/hobby/stampy/
At 11:58 AM 3/5/2001 +0100, you wrote:
>Jim
>Please quote the model and where to find it, I have just the same problem
with the RS junk.
>Thanks in advance
>ECO
>
Original Message
>From: "Jim Szymczak" <szymczak@c...>
>To: <basicstamps@yahoogroups.com>
>Sent: lundi 5 mars 2001 00:14
>Subject: Re: [noparse][[/noparse]basicstamps] IR detector problems
>
>
>>
>> I've tested these Radio Shack detectors (and I think thay are overpriced
>> junk).
>> The detectors I am using now work much better and don't require and of this
>> extra circuitry or code to distinguish between low and high (and they are
>> MUCH smaller and 1/3 the cost)
>
>
>
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
Sincerely
Kerry
Admin@M...
WWW server hosting [url=Http://mntnweb.com]Http://mntnweb.com[/url]
Kerry Barlow
p.o. box 21
kirkwood ny
13795