手勢識別模組-micropython

 手勢識別模組-micropython

型號:PAJ762U2


接線


這裡要使用gesture.,py函式庫

'''
i2c = SoftI2C(scl=x, sda=x)
Sensor =gesture.PAJ7620U2(i2c)
Sensor.get() #返回手势识别结果
'''
import utime

#i2c address
PAJ7620U2_I2C_ADDRESS   = 0x73
#Register Bank select
PAJ_BANK_SELECT            = 0xEF            #Bank0== 0x00,Bank1== 0x01
#Register Bank 0
PAJ_SUSPEND                = 0x03        #I2C suspend command (Write = 0x01 to enter suspend state). I2C wake-up command is slave ID wake-up. Refer to topic “I2C Bus Timing Characteristics and Protocol”
PAJ_INT_FLAG1_MASK        = 0x41        #Gesture detection interrupt flag mask
PAJ_INT_FLAG2_MASK        = 0x42        #Gesture/PS detection interrupt flag mask
PAJ_INT_FLAG1            = 0x43        #Gesture detection interrupt flag
PAJ_INT_FLAG2            = 0x44        #Gesture/PS detection interrupt flag
PAJ_STATE                = 0x45        #State indicator for gesture detection (Only functional at gesture detection mode)
PAJ_PS_HIGH_THRESHOLD    = 0x69        #PS hysteresis high threshold (Only functional at proximity detection mode)        
PAJ_PS_LOW_THRESHOLD    = 0x6A        #PS hysteresis low threshold (Only functional at proximity detection mode)
PAJ_PS_APPROACH_STATE    = 0x6B        #PS approach state,  Approach = 1 , (8 bits PS data >= PS high threshold),  Not Approach = 0 , (8 bits PS data <= PS low threshold)(Only functional at proximity detection mode)
PAJ_PS_DATA                = 0x6C        #PS 8 bit data(Only functional at gesture detection mode)
PAJ_OBJ_BRIGHTNESS        = 0xB0        #Object Brightness (Max. 255)
PAJ_OBJ_SIZE_L            = 0xB1        #Object Size(Low 8 bit)        
PAJ_OBJ_SIZE_H            = 0xB2        #Object Size(High 8 bit)    
#Register Bank 1
PAJ_PS_GAIN                = 0x44        #PS gain setting (Only functional at proximity detection mode)
PAJ_IDLE_S1_STEP_L        = 0x67        #IDLE S1 Step, for setting the S1, Response Factor(Low 8 bit)
PAJ_IDLE_S1_STEP_H        = 0x68        #IDLE S1 Step, for setting the S1, Response Factor(High 8 bit)    
PAJ_IDLE_S2_STEP_L        = 0x69        #IDLE S2 Step, for setting the S2, Response Factor(Low 8 bit)
PAJ_IDLE_S2_STEP_H        = 0x6A        #IDLE S2 Step, for setting the S2, Response Factor(High 8 bit)
PAJ_OPTOS1_TIME_L        = 0x6B        #OPtoS1 Step, for setting the OPtoS1 time of operation state to standby 1 state(Low 8 bit)    
PAJ_OPTOS2_TIME_H        = 0x6C        #OPtoS1 Step, for setting the OPtoS1 time of operation state to standby 1 stateHigh 8 bit)    
PAJ_S1TOS2_TIME_L        = 0x6D        #S1toS2 Step, for setting the S1toS2 time of standby 1 state to standby 2 state(Low 8 bit)    
PAJ_S1TOS2_TIME_H        = 0x6E        #S1toS2 Step, for setting the S1toS2 time of standby 1 state to standby 2 stateHigh 8 bit)    
PAJ_EN                    = 0x72        #Enable/Disable PAJ7620U2
#Gesture detection interrupt flag
PAJ_UP                    = 0x01
PAJ_DOWN                = 0x02
PAJ_LEFT                = 0x04
PAJ_RIGHT                = 0x08
PAJ_FORWARD                = 0x10
PAJ_BACKWARD            = 0x20
PAJ_CLOCKWISE            = 0x40
PAJ_COUNT_CLOCKWISE        = 0x80
PAJ_WAVE                = 0x100
#Power up initialize array
Init_Register_Array = (
    (0xEF,0x00),
    (0x37,0x07),
    (0x38,0x17),
    (0x39,0x06),
    (0x41,0x00),
    (0x42,0x00),
    (0x46,0x2D),
    (0x47,0x0F),
    (0x48,0x3C),
    (0x49,0x00),
    (0x4A,0x1E),
    (0x4C,0x20),
    (0x51,0x10),
    (0x5E,0x10),
    (0x60,0x27),
    (0x80,0x42),
    (0x81,0x44),
    (0x82,0x04),
    (0x8B,0x01),
    (0x90,0x06),
    (0x95,0x0A),
    (0x96,0x0C),
    (0x97,0x05),
    (0x9A,0x14),
    (0x9C,0x3F),
    (0xA5,0x19),
    (0xCC,0x19),
    (0xCD,0x0B),
    (0xCE,0x13),
    (0xCF,0x64),
    (0xD0,0x21),
    (0xEF,0x01),
    (0x02,0x0F),
    (0x03,0x10),
    (0x04,0x02),
    (0x25,0x01),
    (0x27,0x39),
    (0x28,0x7F),
    (0x29,0x08),
    (0x3E,0xFF),
    (0x5E,0x3D),
    (0x65,0x96),
    (0x67,0x97),
    (0x69,0xCD),
    (0x6A,0x01),
    (0x6D,0x2C),
    (0x6E,0x01),
    (0x72,0x01),
    (0x73,0x35),
    (0x74,0x00),
    (0x77,0x01),
)
#Approaches register initialization array
Init_PS_Array = (
    (0xEF,0x00),
    (0x41,0x00),
    (0x42,0x00),
    (0x48,0x3C),
    (0x49,0x00),
    (0x51,0x13),
    (0x83,0x20),
    (0x84,0x20),
    (0x85,0x00),
    (0x86,0x10),
    (0x87,0x00),
    (0x88,0x05),
    (0x89,0x18),
    (0x8A,0x10),
    (0x9f,0xf8),
    (0x69,0x96),
    (0x6A,0x02),
    (0xEF,0x01),
    (0x01,0x1E),
    (0x02,0x0F),
    (0x03,0x10),
    (0x04,0x02),
    (0x41,0x50),
    (0x43,0x34),
    (0x65,0xCE),
    (0x66,0x0B),
    (0x67,0xCE),
    (0x68,0x0B),
    (0x69,0xE9),
    (0x6A,0x05),
    (0x6B,0x50),
    (0x6C,0xC3),
    (0x6D,0x50),
    (0x6E,0xC3),
    (0x74,0x05),
)
#Gesture register initializes array
Init_Gesture_Array = (
    (0xEF,0x00),
    (0x41,0x00),
    (0x42,0x00),
    (0xEF,0x00),
    (0x48,0x3C),
    (0x49,0x00),
    (0x51,0x10),
    (0x83,0x20),
    (0x9F,0xF9),
    (0xEF,0x01),
    (0x01,0x1E),
    (0x02,0x0F),
    (0x03,0x10),
    (0x04,0x02),
    (0x41,0x40),
    (0x43,0x30),
    (0x65,0x96),
    (0x66,0x00),
    (0x67,0x97),
    (0x68,0x01),
    (0x69,0xCD),
    (0x6A,0x01),
    (0x6B,0xB0),
    (0x6C,0x04),
    (0x6D,0x2C),
    (0x6E,0x01),
    (0x74,0x00),
    (0xEF,0x00),
    (0x41,0xFF),
    (0x42,0x01),
)
class PAJ7620U2:
    def __init__(self,i2c):
        self.i2c=i2c
        self._address=PAJ7620U2_I2C_ADDRESS
        try:
            self.i2c.scan()
        except:
            utime.sleep_ms(500)
        try:
            self.i2c.scan()
        except:
            utime.sleep_ms(500)
        if self._read_byte(0x00) == 0x20:
            print("\nGesture Sensor OK\n")
            for num in range(len(Init_Register_Array)):
                self._write_byte(Init_Register_Array[num][0],Init_Register_Array[num][1])
        else:
            print("\nGesture Sensor Error\n")
        self._write_byte(PAJ_BANK_SELECT, 0)
        for num in range(len(Init_Gesture_Array)):
                self._write_byte(Init_Gesture_Array[num][0],Init_Gesture_Array[num][1])
    #change form here
    def _read_byte(self,cmd):
        cmdbytes=self.i2c.readfrom_mem(self._address,cmd,1)
        intbytes=int.from_bytes(cmdbytes,'little',True)
        return intbytes
   
    def _read_u16(self,cmd):
        LSB = self.i2c.readfrom_mem(self._address,cmd,1)
        LSBINT=int.from_bytes(LSB,'little',True)
        MSB = self.i2c.readfrom_mem(self._address,cmd+1,1)
        MSBINT=int.from_bytes(MSB,'little',True)
        return (MSBINT    << 8) + LSBINT
    # not change yet
    def _write_byte(self,cmd,val):
        valbytes=val.to_bytes(1,'big',False)
        self.i2c.writeto_mem(self._address,cmd,valbytes)
       
    def get(self):
        Gesture_Data=self._read_u16(PAJ_INT_FLAG1)
        if Gesture_Data == PAJ_UP:
            return 0
        elif Gesture_Data == PAJ_DOWN:
            return 1
        elif Gesture_Data == PAJ_LEFT:
            return 2
        elif Gesture_Data == PAJ_RIGHT:
            return 3
        elif Gesture_Data == PAJ_FORWARD:
            return 4
        elif Gesture_Data == PAJ_BACKWARD:
            return 5
        elif Gesture_Data == PAJ_CLOCKWISE:
            return 6
        elif Gesture_Data == PAJ_COUNT_CLOCKWISE:
            return 7
        elif Gesture_Data == PAJ_WAVE:
            return 8
        else:
            pass

程式碼

from gesture import PAJ7620U2
from machine import Pin, SoftI2C
from time import sleep

i2c=SoftI2C(scl=Pin(22), sda=Pin(21))
hand=PAJ7620U2(i2c)
gesture_list_eng=['Up','Down','Left','Right','Forward','Backward','Clockwise','AntiClockwise','wave']
while (1):
    pose=hand.get()
    if pose !=None:
        print(gesture_list_eng[pose])




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