Arduino Uno + PAJ7620U2 实现手势识别控制LED灯工作
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前言
开发板：Arduino Uno Rev3 创客主板
开发环境：Arduino IDE
开发语言：Arduino 语言（类C语言）
模块：PAJ7620U2
源码参考官方例程，并加以功能修改。
paj7620官方例程：https://www.arduino.cc/reference/en/libraries/gesture-paj7620/
wire库官方文档：https://www.arduino.cc/en/Reference/Wire
功能介绍：
一共定义了 9种模式，分别为 全关、全开、LED1亮、LED1灭、LED2亮、LED2灭、LED1闪烁、LED2闪烁和LED流动闪烁。
#define ALL_OFF 0
#define ALL_ON 1
#define LED1_ON 2
#define LED1_OFF 3
#define LED2_ON 4
#define LED2_OFF 5
#define LED1_TWINKLE 6
#define LED2_TWINKLE 7
#define LED_FLOW 8
一共是9种手势的识别，分别为 向右挥，向左挥，向上挥，向下挥，靠近，后退，顺时针，逆时针和挥手。
#define GES_RIGHT_FLAG PAJ7620_VAL(1,0)
#define GES_LEFT_FLAG PAJ7620_VAL(1,1)
#define GES_UP_FLAG PAJ7620_VAL(1,2)
#define GES_DOWN_FLAG PAJ7620_VAL(1,3)
#define GES_FORWARD_FLAG PAJ7620_VAL(1,4)
#define GES_BACKWARD_FLAG PAJ7620_VAL(1,5)
#define GES_CLOCKWISE_FLAG PAJ7620_VAL(1,6)
#define GES_COUNT_CLOCKWISE_FLAG PAJ7620_VAL(1,7)
#define GES_WAVE_FLAG PAJ7620_VAL(1,0)
手势和模式的对应关系
向左挥 LED1（左边的灯即LED1）亮灭
向右挥 LED2（右边的灯即LED2）亮灭
向上挥 全亮
向下挥 全灭
靠近 全灭
后退 全亮
顺时针 LED1闪烁
逆时针 LED2闪烁
挥手 LED流水闪烁
接线
2 3口接灯负极（灯正极串 1k欧电阻 接5v）
UNO PAJ7620U2
3.3V -》 VCC
GND -》 GND
SCL -》 SCL
SDA -》 SDA
效果图
温馨提示：效果随便看看就好（因为gif上传限制，所以gif帧数和画质都比较渣） 看久了 有点晕
左挥 LED1亮 右挥 LED2亮
左挥 LED1灭 右挥 LED2灭
上挥 全亮， 下挥 全灭
逆时针 LED2闪烁，顺时针 LED1闪烁，下挥 全灭
挥手 LED流水闪烁
远离 全亮，靠近 全灭
源码
paj7620_9gestures.ino
/*
Copyright (c) 2015 seeed technology inc.
Website : www.seeed.cc
Author : Wuruibin
Modified Time: June 2015
Description: This demo can recognize 9 gestures and output the result, including move up, move down, move left, move right,
move forward, move backward, circle-clockwise, circle-counter clockwise, and wave.
The MIT License (MIT)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
#include <Wire.h>
#include "paj7620.h"
/*
Notice: When you want to recognize the Forward/Backward gestures, your gestures' reaction time must less than GES_ENTRY_TIME(0.8s).
You also can adjust the reaction time according to the actual circumstance.
*/
#define GES_REACTION_TIME 500 // You can adjust the reaction time according to the actual circumstance.
#define GES_ENTRY_TIME 800 // When you want to recognize the Forward/Backward gestures, your gestures' reaction time must less than GES_ENTRY_TIME(0.8s).
#define GES_QUIT_TIME 1000
#define ALL_OFF 0
#define ALL_ON 1
#define LED1_ON 2
#define LED1_OFF 3
#define LED2_ON 4
#define LED2_OFF 5
#define LED1_TWINKLE 6
#define LED2_TWINKLE 7
#define LED_FLOW 8
int LED1 = 2; //LED1接主板的数字2口
int LED2 = 3; //LED2接主板的数字3口
// 模式
int mode = 0;
void setup()
pinMode(LED1, OUTPUT);//设置数字2 口为输出接口，Arduino 上我们用到的I/O 口都要进行类似这样的定义。
pinMode(LED2, OUTPUT);//设置数字3 口为输出接口
uint8_t error = 0;
Serial.begin(9600);
Serial.println("\\nPAJ7620U2 TEST DEMO: Recognize 9 gestures.");
error = paj7620Init(); // initialize Paj7620 registers
if (error)
Serial.print("INIT ERROR,CODE:");
Serial.println(error);
else
Serial.println("INIT OK");
Serial.println("Please input your gestures:\\n");
void loop()
uint8_t data = 0, data1 = 0, error;
uint8_t temp = 0;
error = paj7620ReadReg(0x43, 1, &data); // Read Bank_0_Reg_0x43/0x44 for gesture result.
if (!error)
switch (data) // When different gestures be detected, the variable 'data' will be set to different values by paj7620ReadReg(0x43, 1, &data).
case GES_RIGHT_FLAG:
delay(GES_ENTRY_TIME);
paj7620ReadReg(0x43, 1, &data);
if (data == GES_FORWARD_FLAG)
Serial.println("Forward");
mode = ALL_OFF;
delay(GES_QUIT_TIME);
else if (data == GES_BACKWARD_FLAG)
Serial.println("Backward");
mode = ALL_ON;
delay(GES_QUIT_TIME);
else
Serial.println("Right");
temp = digitalRead(LED2);
if(temp == 0) mode = LED2_OFF;
else mode = LED2_ON;
break;
case GES_LEFT_FLAG:
delay(GES_ENTRY_TIME);
paj7620ReadReg(0x43, 1, &data);
if (data == GES_FORWARD_FLAG)
Serial.println("Forward");
mode = ALL_OFF;
delay(GES_QUIT_TIME);
else if (data == GES_BACKWARD_FLAG)
Serial.println("Backward");
mode = ALL_ON;
delay(GES_QUIT_TIME);
else
Serial.println("Left");
temp = digitalRead(LED1);
if(temp == 0) mode = LED1_OFF;
else mode = LED1_ON;
break;
case GES_UP_FLAG:
delay(GES_ENTRY_TIME);
paj7620ReadReg(0x43, 1, &data);
if (data == GES_FORWARD_FLAG)
Serial.println("Forward");
mode = ALL_OFF;
delay(GES_QUIT_TIME);
else if (data == GES_BACKWARD_FLAG)
Serial.println("Backward");
mode = ALL_ON;
delay(GES_QUIT_TIME);
else
Serial.println("Up");
mode = ALL_ON;
break;
case GES_DOWN_FLAG:
delay(GES_ENTRY_TIME);
paj7620ReadReg(0x43, 1, &data);
if (data == GES_FORWARD_FLAG)
Serial.println("Forward");
mode = ALL_OFF;
delay(GES_QUIT_TIME);
else if (data == GES_BACKWARD_FLAG)
Serial.println("Backward");
mode = ALL_ON;
delay(GES_QUIT_TIME);
else
Serial.println("Down");
mode = ALL_OFF;
break;
case GES_FORWARD_FLAG:
Serial.println("Forward");
mode = ALL_OFF;
delay(GES_QUIT_TIME);
break;
case GES_BACKWARD_FLAG:
Serial.println("Backward");
mode = ALL_ON;
delay(GES_QUIT_TIME);
break;
case GES_CLOCKWISE_FLAG:
Serial.println("Clockwise");
mode = LED1_TWINKLE;
break;
case GES_COUNT_CLOCKWISE_FLAG:
Serial.println("anti-clockwise");
mode = LED2_TWINKLE;
break;
default:
paj7620ReadReg(0x44, 1, &data1);
if (data1 == GES_WAVE_FLAG)
Serial.println("wave");
mode = LED_FLOW;
break;
// LED工作模式
switch (mode)
case ALL_OFF:
digitalWrite(LED1, HIGH);//熄灭LED1
digitalWrite(LED2, HIGH);//熄灭LED2
break;
case ALL_ON:
digitalWrite(LED1, LOW);//点亮LED1
digitalWrite(LED2, LOW);//点亮LED2
break;
case LED1_ON:
digitalWrite(LED1, LOW);//点亮LED1
break;
case LED1_OFF:
digitalWrite(LED1, HIGH);//熄灭LED1
break;
case LED2_ON:
digitalWrite(LED2, LOW);//点亮LED2
break;
case LED2_OFF:
digitalWrite(LED2, HIGH);//熄灭LED2
break;
case LED1_TWINKLE:
temp = digitalRead(LED1);
// Serial.print("temp1:");
// Serial.println(temp);
temp = temp > 0 ? 0 : 1;
digitalWrite(LED1, temp);
break;
case LED2_TWINKLE:
temp = digitalRead(LED2);
// Serial.print("temp2:");
// Serial.println(temp);
temp = temp > 0 ? 0 : 1;
digitalWrite(LED2, temp);
break;
case LED_FLOW:
temp = digitalRead(LED1);
// Serial.print("temp3:");
// Serial.println(temp);
digitalWrite(LED2, temp);
temp = temp > 0 ? 0 : 1;
digitalWrite(LED1, temp);
break;
default:
break;
delay(500);
paj7620.cpp
/*
paj7620.cpp
A library for Grove-Guesture 1.0
Copyright (c) 2015 seeed technology inc.
Website : www.seeed.cc
Author : Wuruibin & Xiangnan
Modified Time: June 2015
The MIT License (MIT)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
#include <Wire.h>
#include "paj7620.h"
#include <Arduino.h>
// PAJ7620U2_20140305.asc
/* Registers' initialization data */
unsigned char initRegisterArray[][2] = // Initial Gesture
0xEF, 0x00,
0x32, 0x29,
0x33, 0x01,
0x34, 0x00,
0x35, 0x01,
0x36, 0x00,
0x37, 0x07,
0x38, 0x17,
0x39, 0x06,
0x3A, 0x12,
0x3F, 0x00,
0x40, 0x02,
0x41, 0xFF,
0x42, 0x01,
0x46, 0x2D,
0x47, 0x0F,
0x48, 0x3C,
0x49, 0x00,
0x4A, 0x1E,
0x4B, 0x00,
0x4C, 0x20,
0x4D, 0x00,
0x4E, 0x1A,
0x4F, 0x14,
0x50, 0x00,
0x51, 0x10,
0x52, 0x00,
0x5C, 0x02,
0x5D, 0x00,
0x5E, 0x10,
0x5F, 0x3F,
0x60, 0x27,
0x61, 0x28,
0x62, 0x00,
0x63, 0x03,
0x64, 0xF7,
0x65, 0x03,
0x66, 0xD9,
0x67, 0x03,
0x68, 0x01,
0x69, 0xC8,
0x6A, 0x40,
0x6D, 0x04,
0x6E, 0x00,
0x6F, 0x00,
0x70, 0x80,
0x71, 0x00,
0x72, 0x00,
0x73, 0x00,
0x74, 0xF0,
0x75, 0x00,
0x80, 0x42,
0x81, 0x44,
0x82, 0x04,
0x83, 0x20,
0x84, 0x20,
0x85, 0x00,
0x86, 0x10,
0x87, 0x00,
0x88, 0x05,
0x89, 0x18,
0x8A, 0x10,
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