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wiki:v2:pixy_lego_block [2019/01/29 23:12]
pixycam
wiki:v2:pixy_lego_block [2020/04/30 22:25] (current)
pixycam
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   1. **Port Selector**: use this to select the sensor port 1 through 4 that Pixy2 is plugged into on your controller brick.   1. **Port Selector**: use this to select the sensor port 1 through 4 that Pixy2 is plugged into on your controller brick.
   2. **Mode Selector**: selects between measure and compare modes.   2. **Mode Selector**: selects between measure and compare modes.
-  3. **Lamp**: turns the lamp on or off. +  3. **Signature**:​ selects the signature or [[wiki:​v2:​Using_Color_Codes|color code]] you'd like Pixy2 to search for
-  4. **Signature**:​ selects the signature or [[wiki:​v2:​Using_Color_Codes|color code]] you'd like Pixy2 to search for.+  4. **Lamp**: turns the lamp on or off.
   5. **Signature Output**: outputs the number of blocks that match the signature or [[wiki:​v2:​Using_Color_Codes|color code]] you specified in the Signature input. Or it outputs the signature number of the detected object if in General Mode (see the description of modes below).   5. **Signature Output**: outputs the number of blocks that match the signature or [[wiki:​v2:​Using_Color_Codes|color code]] you specified in the Signature input. Or it outputs the signature number of the detected object if in General Mode (see the description of modes below).
   6. **X centroid**: outputs the X location of the center of the largest object that Pixy2 has found. The number returned ranges from 0 to 255, with 0 being the rightmost pixel if facing the camera lens.   6. **X centroid**: outputs the X location of the center of the largest object that Pixy2 has found. The number returned ranges from 0 to 255, with 0 being the rightmost pixel if facing the camera lens.
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   5. **Lamp**: turns the lamp on or off.   5. **Lamp**: turns the lamp on or off.
   6. **Vector**: outputs the X coordinate of the head of the Vector. ​ The value ranges between 0 (far left of the image) to 128 (far right of    6. **Vector**: outputs the X coordinate of the head of the Vector. ​ The value ranges between 0 (far left of the image) to 128 (far right of 
-the image). ​ If no Vector is detected, the value will be -1.+the image). ​ If no Vector is detected, the value will be -1.  Refer [[wiki:​v2:​line_tracking#​detecting-and-tracking-lines|here]] for a description of the Vector.
   7. **Vector Reversed**: outputs true if the Vector is pointing down instead of up.  This usually indicates that your robot needs to reverse its direction in order to follow the Vector.   7. **Vector Reversed**: outputs true if the Vector is pointing down instead of up.  This usually indicates that your robot needs to reverse its direction in order to follow the Vector.
-  8. **Barcode**:​ outputs the numerical value of a detected barcode (0 through 15).  If no barcodes are detected, the value will be -1.  If more than one barcode is detected in the image, the value of the barcode closest to the bottom of the image will be returned. +  8. **Barcode**:​ outputs the numerical value of a detected barcode (0 through 15).  If no barcodes are detected, the value will be -1.  If more than one barcode is detected in the image, the value of the barcode closest to the bottom of the image will be returned.  Refer [[wiki:​v2:​line_tracking#​barcodes|here]] for examples of barcodes, and [[https://​pixycam.com/​downloads-pixy2/​|here]] to download barcode images
-  9. **Intersection**:​ outputs the number branches in a detected intersection (3 through 6) -- note, a "​T"​ intersection is the minimum number of branches an intersection can have (3).  If no intersection is detected, the value will be -1.+  9. **Intersection**:​ outputs the number branches in a detected intersection (3 through 6) -- note, a "​T"​ intersection is the minimum number of branches an intersection can have (3).  If no intersection is detected, the value will be -1.  Refer [[wiki:​v2:​line_tracking#​detecting-intersections-and-branching|here]] for examples of barcodes.
  
  
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 The Pixy2 RGB sensing is shown below, with labels showing the different inputs and outputs. The Pixy2 RGB sensing is shown below, with labels showing the different inputs and outputs.
  
-{{wiki:v1:image_728.png}}+{{wiki:v2:image_894.png}}
  
  
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   4. **Y**: Y location input, can range between 0 and 255 (see coordinate diagram below).   4. **Y**: Y location input, can range between 0 and 255 (see coordinate diagram below).
   5. **Lamp**: turns the lamp on or off.   5. **Lamp**: turns the lamp on or off.
-  6. **Red**: outputs the red value of the pixel at the specified image location. ​ Value can range between 0 to 255. +  6. **Saturation**:​ if true, Pixy will "​saturate"​ the colors so they are easier to distinguish (reds are redder, blues are bluer, etc.)  If false, the raw RGB values will returned. 
-  ​7. **Green**: outputs the green value of the pixel at the specified image location. ​ Value can range between 0 to 255. +  7. **Red**: outputs the red value of the pixel at the specified image location. ​ Value can range between 0 to 255. 
-  ​8. **Blue**: outputs the blue value of the pixel at the specified image location. ​ Value can range between 0 to 255.+  ​8. **Green**: outputs the green value of the pixel at the specified image location. ​ Value can range between 0 to 255. 
 +  ​9. **Blue**: outputs the blue value of the pixel at the specified image location. ​ Value can range between 0 to 255.
  
  
wiki/v2/pixy_lego_block.1548803576.txt.gz · Last modified: 2019/01/29 23:12 by pixycam