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faithrobot Site Admin

Joined: 19 Jul 2008 Posts: 193
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faithrobot Site Admin

Joined: 19 Jul 2008 Posts: 193
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Ayumu Site Admin
Joined: 05 Aug 2008 Posts: 7 Location: Denpasar, Bali
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Posted: Thu Oct 09, 2008 6:08 pm Post subject: |
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| Btw, Ka Andi, pertanyaan paling penting sejagad raya khan, di mana ya bisa beli sensor HiTechnic di Indonesia? Maksudnya supaya ngga usah jauh-jauh ke seberang lautan, githo. Sempat lihat di www.toko-robot.com, tapi ngga ada HT. Malah yg dia punya rangkaian bugil semua. Ehm, maksudnya, PCB, IC, transistornya kelihatan semua, ngga ditutupin spy sopan kayak LEGO. Hehe. Reply ya. |
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faithrobot Site Admin

Joined: 19 Jul 2008 Posts: 193
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Posted: Fri Oct 17, 2008 1:56 pm Post subject: |
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| Ayumu wrote: |
| Btw, Ka Andi, pertanyaan paling penting sejagad raya khan, di mana ya bisa beli sensor HiTechnic di Indonesia? Maksudnya supaya ngga usah jauh-jauh ke seberang lautan, githo. Sempat lihat di www.toko-robot.com, tapi ngga ada HT. Malah yg dia punya rangkaian bugil semua. Ehm, maksudnya, PCB, IC, transistornya kelihatan semua, ngga ditutupin spy sopan kayak LEGO. Hehe. Reply ya. |
terima kasih pertanyaannya ka jefta. untuk sementara kita memang belinya di amrik, dan di indonesia masi belom ada emang, tapi kalau jadi kita pengen menjadi distributornya, jadi doain aja yah biar terjalankan.
saya sudah lihat di website yang ada beritahukan disana kebanyakan sensor umum , maksudnya yang dipake anak anak falkutas jarang ada sensor untuk NXT sendiri disana, tapi intinya sensor apapun bisa dipake di NXT atau robot apapun asalkan kita kreatif dan mau mempelajarinnya. Untuk masalah sensornya telanjang atau tidak tergantung rasa pak hehehehehehe suka yang buka bukaan atau yang tutup tutupan.  _________________ http://ctc-robotics.blogspot.com/
http://www.innov-ed.com/
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faithrobot Site Admin

Joined: 19 Jul 2008 Posts: 193
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Posted: Wed Jun 17, 2009 11:34 pm Post subject: IRSeeker V2 |
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Play robot soccer and zero in on your infrared (IR) beacons with the new and enhanced IRSeeker V2 (Version 2). You can use most TV remotes and LEGO® Power Functions remotes as beacons that the IRSeeker V2 will detect. With a specially designed curved lens and five internal detectors, the IRSeeker V2 has a 240 degree view making it perfect for playing robot soccer with the HiTechnic IRBall. The IRSeeker V2 has enhanced modes that detect modulated IR signals, including the new RoboCup Jr stepped modulated mode, and it filters out background signals giving superior performance in brightly lit rooms and sunny locations. The sensor returns the signal direction and strength making it easy to locate and gauge the relative distance to the target. A winning robot soccer combination when combined with the HiTechnic NXT Compass Sensor!
HiTechnic NXT IRSeeker V2 Sensor for LEGO Mindstorms NXT
Introduction
The NXT IRSeeker V2 (Version 2) is a multi-element infrared detector that detects infrared signals from sources such as the HiTechnic IRBall soccer ball, infrared remote controls and sunlight. It is perfect for robot soccer competitions.
The IRSeeker V2 operates in 2 selectable modes,
Modulated (AC) Mode - The sensor will detect modulated IR signals such as those from the HiTechnic IRBall or some IR remote controls. In Modulated mode the sensor will filter out most other IR signals to decrease interference from lights and sunshine for example. The sensor is tuned to square wave signals at 1200Hz.
Un-modulated (DC) Mode - The sensor will detect un-modulated IR signals such as older style IRBalls or sunlight.
The IRSeeker V2 uses advanced digital signal processing techniques to filter the signals received and select only the signals required. A newly designed housing with a constant radius curved end cap increases directional peformance by minimizing distortion of light signals entering the sensor.
The IRSeeker V2 uses advanced digital signal processing techniques to filter the signals received and select only the signals required. A newly designed housing with a constant radius curved end cap increases directional peformance by minimizing distortion of light signals entering the sensor.
The IRSeeker direction values are shown here with 1 indicating the infrared target is left and behind, 5 if the target is directly ahead and 9 if the target is to the right and behind. A value of 0 is returned if no signal is detected.
Programming
Mindstorms NXT-G
All IRSeeker V2 functions can be accessed using the MINDSTORMS NXT-G programming block that can be downloaded from the download page.
IRSeeker Sensor Block
Display Settings
1. The number shows which of your NXT's ports are connected to the IRSeekerV2. You can change this number in the configuration panel if you need to.
2. The block's data hub will open automatically when the block is placed in the work area. At least one data wire must be dragged from the block's output plug to another block's data hub. (See the Data Hub section below for more information.)
Configuring the IRSeekerV2 Block
Image of configuration panel
1. Choose the port where your IRSeekerV2 is plugged in. By default, the block will be set to port 1 for an IRSeekerV2. You can change this selection if you need to.
2. Chose the Mode. Two modes are available Modulated (AC) and Un-modulated (DC).
Modulated (AC) Mode - The sensor will detect modulated IR signals such as those from the HiTechnic IRBall or some IR remote controls. In Modulated mode the sensor will filter out most other IR signals to decrease interference from lights and sunshine for example. The sensor is tuned to square wave signals at 1200Hz.
Un-modulated (DC) Mode - The sensor will detect un-modulated IR signals such as the older style IRBall or sunlight.
IRSeekerV2 block Data Hub plugs
You must click on the Data Hub to open it as shown.
1. This plug wires the number of the port that the IRSeekerV2 is connected to.
2. This plug outputs the direction value.
3. This plug selects the mode the sensor is operating in, 0 = Modulated Mode (AC), 2 = Un-modulated (DC) mode.
4. This plug outputs the source detected logical value.
5. This plug outputs the Channel 1 signal strength value.
6. This plug outputs the Channel 2 signal strength value.
7. This plug outputs the Channel 3 signal strength value.
8. This plug outputs the Channel 4 signal strength value.
9. This plug outputs the Channel 5 signal strength value.
The five strength values available make it possible to determine the approximate distance to the infrared source if it is of a known brightness. The five strength values come from five infrared sensors which are oriented to face in the 1, 3, 5, 7 and 9 directions. Internally, the sensor will interpolate the readings between these five primary directions to obtain the direction values 2, 4, 6 and 8.
So if you want to obtain the strength for each of the 9 directions, you should use;
Direction Strength Source
1 Channel 1
2 Channel 1 and 2
3 Channel 2
4 Channel 2 and 3
5 Channel 3
6 Channel 3 and 4
7 Channel 4
8 Channel 4 and 5
9 Channel 5
Notes:
Using infrared remote control as a signal source: Most remote controls will be detected by the IRSeekerV2 in AC mode but some remotes may not be detectable, depending on the signal generated. The IRSeekerV2 is tuned to detect a 1200Hz square wave.
NXC Programming
NXC programs can access all the IRSeeker V2 features. An example program can be found on the HiTechnic downloads page.
RobotC
All IRSeeker V2 features are available to RobotC programs using the functions available from the HiTechnic downloads page.
IRSeeker V2 Sensor Register Layout
Notes:
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The new IRSeeker requires the new V2 version NXT-G programming block that can be downloaded from the download section of our web site.
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NXT Firmware version 1.03 or later must be loaded in the NXT for the IRSeeker V2 and other digital I2C sensors to operate correctly. You can check the firmware version by displaying the NXT Window in the Mindstorms software.
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The I2C address of the IRSeeker V2 sensor is 0x10. _________________ http://ctc-robotics.blogspot.com/
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