wiki:v2:pixy_lego_block
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wiki:v2:pixy_lego_block [2019/01/29 23:02] pixycam |
wiki:v2:pixy_lego_block [2019/08/23 21:04] pixycam |
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| {{wiki:v1:image_724.png}} | {{wiki:v1:image_724.png}} | ||
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| ==== Parameters ==== | ==== Parameters ==== | ||
| - | - **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. |
| - | - **Mode Selector**: selects between measure and compare modes. | + | 2. **Mode Selector**: selects between measure and compare modes. |
| - | - **Lamp**: turns the lamp on or off. | + | 3. **Lamp**: turns the lamp on or off. |
| - | - **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. |
| - | - **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). |
| - | - **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. |
| - | - **Y centroid**: outputs the Y location of the center of the largest object that Pixy2 found. The number returned is from 0 to 199, with 0 being the topmost pixel. | + | 7. **Y centroid**: outputs the Y location of the center of the largest object that Pixy2 found. The number returned is from 0 to 199, with 0 being the topmost pixel. |
| - | - **Width**: outputs the width of the largest block that Pixy2 has found. The number returned is from 1 to 256. | + | 8. **Width**: outputs the width of the largest block that Pixy2 has found. The number returned is from 1 to 256. |
| - | - **Height**: outputs the height of the largest block that Pixy2 has found. The number returned is from 1 to 256. | + | 9. **Height**: outputs the height of the largest block that Pixy2 has found. The number returned is from 1 to 256. |
| - | - **Angle**: is the angle (in degrees) of the largest object that Pixy2 has found. Angle information is only available for [[wiki:v2:Using_Color_Codes|color codes]], otherwise the value is 0. | + | 10. **Angle**: is the angle (in degrees) of the largest object that Pixy2 has found. Angle information is only available for [[wiki:v2:Using_Color_Codes|color codes]], otherwise the value is 0. |
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| {{wiki:v1:image_711.png}} | {{wiki:v1:image_711.png}} | ||
| - | - **Port Selector**: use this to select the sensor port 1 through 4 that Pixy2 is plugged into on your controller brick. | + | |
| - | - **Mode Selector**: selects between measure and compare modes. | + | ==== Parameters ==== |
| - | - **Turn Angle**: sets the turn angle (in degrees) for when intersections are encountered. Turn angle values can range between -180 and 180. See the section on turn angles below. | + | |
| - | - **Reverse**: setting this to false to true or true to false will cause Pixy2 to reverse the current Vector. | + | 1. **Port Selector**: use this to select the sensor port 1 through 4 that Pixy2 is plugged into on your controller brick. |
| - | - **Lamp**: turns the lamp on or off. | + | 2. **Mode Selector**: selects between measure and compare modes. |
| - | - **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. | + | 3. **Turn Angle**: sets the turn angle (in degrees) for when intersections are encountered. Turn angle values can range between -180 and 180. See the section on turn angles below. |
| - | - **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. | + | 4. **Reverse**: setting this to false to true or true to false will cause Pixy2 to reverse the current Vector. |
| - | - **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. | + | 5. **Lamp**: turns the lamp on or off. |
| - | - **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. | + | 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. 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. | ||
| + | 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. 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}} |
| - | - **Port Selector**: use this to select the sensor port 1 through 4 that Pixy2 is plugged into on your controller brick. | + | ==== Parameters ==== |
| - | - **Mode Selector**: selects between measure and compare modes. | + | |
| - | - **X**: X location input, can range between 0 and 255 (see coordinate diagram below). | + | 1. **Port Selector**: use this to select the sensor port 1 through 4 that Pixy2 is plugged into on your controller brick. |
| - | - **Y**: Y location input, can range between 0 and 255 (see coordinate diagram below). | + | 2. **Mode Selector**: selects between measure and compare modes. |
| - | - **Lamp**: turns the lamp on or off. | + | 3. **X**: X location input, can range between 0 and 255 (see coordinate diagram below). |
| - | - **Red**: outputs the red value of the pixel at the specified image location. Value can range between 0 to 255. | + | 4. **Y**: Y location input, can range between 0 and 255 (see coordinate diagram below). |
| - | - **Green**: outputs the green value of the pixel at the specified image location. Value can range between 0 to 255. | + | 5. **Lamp**: turns the lamp on or off. |
| - | - **Blue**: outputs the blue 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. **Red**: outputs the red 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.txt · Last modified: 2020/04/30 22:25 by pixycam
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