66 lines
1.8 KiB
C++
66 lines
1.8 KiB
C++
//
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// begin license header
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//
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// This file is part of Pixy CMUcam5 or "Pixy" for short
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//
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// All Pixy source code is provided under the terms of the
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// GNU General Public License v2 (http://www.gnu.org/licenses/gpl-2.0.html).
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// Those wishing to use Pixy source code, software and/or
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// technologies under different licensing terms should contact us at
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// cmucam@cs.cmu.edu. Such licensing terms are available for
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// all portions of the Pixy codebase presented here.
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//
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// end license header
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//
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// This sketch is like hello_world but uses UART communications. If you're
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// not sure what UART is, run the hello_world sketch!
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//
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// Note, the default baudrate for Pixy's UART communications is 19200. Given
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// the slow datarate and Arduino's shallow serial FIFO, this sletch sometimes
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// gets checksum errors, when more than 1 block is present. This is because
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// printing more than 1 object block to the serial console (as this sketch does)
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// causes the Arduino's serial FIFO to overrun, which leads to communication
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// errors.
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//
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#include "PixyUART.h"
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PixyUART pixy;
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void setup()
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{
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Serial.begin(9600); // 9600 baud for the serial *console* (not for the UART connected to Pixy)
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Serial.print("Starting...\n");
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pixy.init();
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}
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void loop()
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{
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static int i = 0;
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int j;
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uint16_t blocks;
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char buf[32];
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blocks = pixy.getBlocks();
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if (blocks)
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{
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i++;
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// do this (print) every 50 frames because printing every
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// frame would bog down the Arduino
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if (i%50==0)
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{
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sprintf(buf, "Detected %d:\n", blocks);
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Serial.print(buf);
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for (j=0; j<blocks; j++)
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{
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sprintf(buf, " block %d: ", j);
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Serial.print(buf);
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pixy.blocks[j].print();
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}
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}
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}
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}
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