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    Explore Pybytes | Official Documentation | Report a Firmware Bug/Issue | GitHub

    Gesture PAJ7620 library help

    Scheduled Pinned Locked Moved LoPy
    @lopy@ micropython
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    • M Offline
      mahmud021
      last edited by livius

      Hi Pycom team,
      i have one grove gesture PAJ7620 module. i like to interface it with lopy module. I have rewrite the module library given for raspberry pi. But unfortunately, it shows initialization error. Please need help from experts. Here is the error note0_1498580101627_Error.jpg

      and here is the code

      #!/usr/bin/env python
      #
      # GrovePi Library for using the Grove - Gesture Sensor v1.0(http://www.seeedstudio.com/depot/Grove-Gesture-p-2463.html)
      #
      # The GrovePi connects the Raspberry Pi and Grove sensors.  You can learn more about GrovePi here:  http://www.dexterindustries.com/GrovePi
      #
      # Have a question about this library?  Ask on the forums here:  http://forum.dexterindustries.com/c/grovepi
      #
      # History
      # ------------------------------------------------
      # Author	Date      		Comments
      # Karan		31 Dec 15	  	Initial Authoring
      #
      # Code derived from the basic Arduino library for the Gesture Sensor by Seeed: https://github.com/Seeed-Studio/Gesture_PAJ7620
      '''
      ## License
      
      The MIT License (MIT)
      
      GrovePi for the Raspberry Pi: an open source platform for connecting Grove Sensors to the Raspberry Pi.
      Copyright (C) 2017  Dexter Industries
      
      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.
      '''
      
      import time
      import machine
      #import RPi.GPIO as GPIO
      #import smbus, sys
      
      # use the bus that matches your raspi version
      '''rev = GPIO.RPI_REVISION
      if rev == 2 or rev == 3:
          bus = smbus.SMBus(1)
      else:
          bus = smbus.SMBus(0)
      '''
      	#Registers and variables for the gesture sensor
      GES_REACTION_TIME		=0.5				# You can adjust the reaction time according to the actual circumstance.
      GES_ENTRY_TIME			=0.8				# When you want to recognize the Forward/Backward gestures, your gestures' reaction time must less than GES_ENTRY_TIME(0.8s).
      GES_QUIT_TIME			=1.0
      
      BANK0 = 0
      BANK1 = 1
      
      PAJ7620_ADDR_BASE =0x00
      #REGISTER BANK SELECT
      PAJ7620_REGITER_BANK_SEL		=(PAJ7620_ADDR_BASE + 0xEF)	#W
      #DEVICE ID
      PAJ7620_ID  =0x73
      
      #REGISTER BANK 0
      PAJ7620_ADDR_SUSPEND_CMD		=(PAJ7620_ADDR_BASE + 0x3)	#W
      PAJ7620_ADDR_GES_PS_DET_MASK_0	=(PAJ7620_ADDR_BASE + 0x41)	#RW
      PAJ7620_ADDR_GES_PS_DET_MASK_1	=(PAJ7620_ADDR_BASE + 0x42)	#RW
      PAJ7620_ADDR_GES_PS_DET_FLAG_0	=(PAJ7620_ADDR_BASE + 0x43)	#R
      PAJ7620_ADDR_GES_PS_DET_FLAG_1	=(PAJ7620_ADDR_BASE + 0x44)	#R
      PAJ7620_ADDR_STATE_INDICATOR	=(PAJ7620_ADDR_BASE + 0x45)	#R
      PAJ7620_ADDR_PS_HIGH_THRESHOLD	=(PAJ7620_ADDR_BASE + 0x69)	#RW
      PAJ7620_ADDR_PS_LOW_THRESHOLD	=(PAJ7620_ADDR_BASE + 0x6A)	#RW
      PAJ7620_ADDR_PS_APPROACH_STATE	=(PAJ7620_ADDR_BASE + 0x6B)	#R
      PAJ7620_ADDR_PS_RAW_DATA		=(PAJ7620_ADDR_BASE + 0x6C)	#R
      
      #REGISTER BANK 1
      PAJ7620_ADDR_PS_GAIN			=(PAJ7620_ADDR_BASE + 0x44)	#RW
      PAJ7620_ADDR_IDLE_S1_STEP_0		=(PAJ7620_ADDR_BASE + 0x67)	#RW
      PAJ7620_ADDR_IDLE_S1_STEP_1		=(PAJ7620_ADDR_BASE + 0x68)	#RW
      PAJ7620_ADDR_IDLE_S2_STEP_0		=(PAJ7620_ADDR_BASE + 0x69)	#RW
      PAJ7620_ADDR_IDLE_S2_STEP_1		=(PAJ7620_ADDR_BASE + 0x6A)	#RW
      PAJ7620_ADDR_OP_TO_S1_STEP_0	=(PAJ7620_ADDR_BASE + 0x6B)	#RW
      PAJ7620_ADDR_OP_TO_S1_STEP_1	=(PAJ7620_ADDR_BASE + 0x6C)	#RW
      PAJ7620_ADDR_OP_TO_S2_STEP_0	=(PAJ7620_ADDR_BASE + 0x6D)	#RW
      PAJ7620_ADDR_OP_TO_S2_STEP_1	=(PAJ7620_ADDR_BASE + 0x6E)	#RW
      PAJ7620_ADDR_OPERATION_ENABLE	=(PAJ7620_ADDR_BASE + 0x72)	#RW
      
      #PAJ7620_REGITER_BANK_SEL
      PAJ7620_BANK0=0
      PAJ7620_BANK1=1
      
      #PAJ7620_ADDR_SUSPEND_CMD
      PAJ7620_I2C_WAKEUP	=1
      PAJ7620_I2C_SUSPEND	=0
      
      #PAJ7620_ADDR_OPERATION_ENABLE
      PAJ7620_ENABLE=1
      PAJ7620_DISABLE=0
      
      #ADC, delete
      REG_ADDR_RESULT = 0x00
      REG_ADDR_ALERT  = 0x01
      REG_ADDR_CONFIG = 0x02
      REG_ADDR_LIMITL = 0x03
      REG_ADDR_LIMITH = 0x04
      REG_ADDR_HYST   = 0x05
      REG_ADDR_CONVL  = 0x06
      REG_ADDR_CONVH  = 0x07
      
      GES_RIGHT_FLAG              =1<<0
      GES_LEFT_FLAG               =1<<1
      GES_UP_FLAG					=1<<2
      GES_DOWN_FLAG				=1<<3
      GES_FORWARD_FLAG			=1<<4
      GES_BACKWARD_FLAG			=1<<5
      GES_CLOCKWISE_FLAG			=1<<6
      GES_COUNT_CLOCKWISE_FLAG	=1<<7
      GES_WAVE_FLAG				=1<<0
      
      #Gesture output
      FORWARD 		= 1
      BACKWARD 		= 2
      RIGHT			= 3
      LEFT			= 4
      UP				= 5
      DOWN			= 6
      CLOCKWISE		= 7
      ANTI_CLOCKWISE	= 8
      WAVE			= 9
      
      #Initial register state
      initRegisterArray=(	[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],
      						[0x8B,0x01],
      						[0x8C,0x37],
      						[0x8D,0x00],
      						[0x8E,0xF0],
      						[0x8F,0x81],
      						[0x90,0x06],
      						[0x91,0x06],
      						[0x92,0x1E],
      						[0x93,0x0D],
      						[0x94,0x0A],
      						[0x95,0x0A],
      						[0x96,0x0C],
      						[0x97,0x05],
      						[0x98,0x0A],
      						[0x99,0x41],
      						[0x9A,0x14],
      						[0x9B,0x0A],
      						[0x9C,0x3F],
      						[0x9D,0x33],
      						[0x9E,0xAE],
      						[0x9F,0xF9],
      						[0xA0,0x48],
      						[0xA1,0x13],
      						[0xA2,0x10],
      						[0xA3,0x08],
      						[0xA4,0x30],
      						[0xA5,0x19],
      						[0xA6,0x10],
      						[0xA7,0x08],
      						[0xA8,0x24],
      						[0xA9,0x04],
      						[0xAA,0x1E],
      						[0xAB,0x1E],
      						[0xCC,0x19],
      						[0xCD,0x0B],
      						[0xCE,0x13],
      						[0xCF,0x64],
      						[0xD0,0x21],
      						[0xD1,0x0F],
      						[0xD2,0x88],
      						[0xE0,0x01],
      						[0xE1,0x04],
      						[0xE2,0x41],
      						[0xE3,0xD6],
      						[0xE4,0x00],
      						[0xE5,0x0C],
      						[0xE6,0x0A],
      						[0xE7,0x00],
      						[0xE8,0x00],
      						[0xE9,0x00],
      						[0xEE,0x07],
      						[0xEF,0x01],
      						[0x00,0x1E],
      						[0x01,0x1E],
      						[0x02,0x0F],
      						[0x03,0x10],
      						[0x04,0x02],
      						[0x05,0x00],
      						[0x06,0xB0],
      						[0x07,0x04],
      						[0x08,0x0D],
      						[0x09,0x0E],
      						[0x0A,0x9C],
      						[0x0B,0x04],
      						[0x0C,0x05],
      						[0x0D,0x0F],
      						[0x0E,0x02],
      						[0x0F,0x12],
      						[0x10,0x02],
      						[0x11,0x02],
      						[0x12,0x00],
      						[0x13,0x01],
      						[0x14,0x05],
      						[0x15,0x07],
      						[0x16,0x05],
      						[0x17,0x07],
      						[0x18,0x01],
      						[0x19,0x04],
      						[0x1A,0x05],
      						[0x1B,0x0C],
      						[0x1C,0x2A],
      						[0x1D,0x01],
      						[0x1E,0x00],
      						[0x21,0x00],
      						[0x22,0x00],
      						[0x23,0x00],
      						[0x25,0x01],
      						[0x26,0x00],
      						[0x27,0x39],
      						[0x28,0x7F],
      						[0x29,0x08],
      						[0x30,0x03],
      						[0x31,0x00],
      						[0x32,0x1A],
      						[0x33,0x1A],
      						[0x34,0x07],
      						[0x35,0x07],
      						[0x36,0x01],
      						[0x37,0xFF],
      						[0x38,0x36],
      						[0x39,0x07],
      						[0x3A,0x00],
      						[0x3E,0xFF],
      						[0x3F,0x00],
      						[0x40,0x77],
      						[0x41,0x40],
      						[0x42,0x00],
      						[0x43,0x30],
      						[0x44,0xA0],
      						[0x45,0x5C],
      						[0x46,0x00],
      						[0x47,0x00],
      						[0x48,0x58],
      						[0x4A,0x1E],
      						[0x4B,0x1E],
      						[0x4C,0x00],
      						[0x4D,0x00],
      						[0x4E,0xA0],
      						[0x4F,0x80],
      						[0x50,0x00],
      						[0x51,0x00],
      						[0x52,0x00],
      						[0x53,0x00],
      						[0x54,0x00],
      						[0x57,0x80],
      						[0x59,0x10],
      						[0x5A,0x08],
      						[0x5B,0x94],
      						[0x5C,0xE8],
      						[0x5D,0x08],
      						[0x5E,0x3D],
      						[0x5F,0x99],
      						[0x60,0x45],
      						[0x61,0x40],
      						[0x63,0x2D],
      						[0x64,0x02],
      						[0x65,0x96],
      						[0x66,0x00],
      						[0x67,0x97],
      						[0x68,0x01],
      						[0x69,0xCD],
      						[0x6A,0x01],
      						[0x6B,0xB0],
      						[0x6C,0x04],
      						[0x6D,0x2C],
      						[0x6E,0x01],
      						[0x6F,0x32],
      						[0x71,0x00],
      						[0x72,0x01],
      						[0x73,0x35],
      						[0x74,0x00],
      						[0x75,0x33],
      						[0x76,0x31],
      						[0x77,0x01],
      						[0x7C,0x84],
      						[0x7D,0x03],
      						[0x7E,0x01])
      
      	#Enable debug message
      debug=0
      
      class gesture(self):
          #Initialize the sensors
      	def __init__(self, i2c):
              self.i2c=i2c
              self.address=PAJ7620_ID
      		time.sleep(.001)
      		self.paj7620SelectBank(BANK0)
      		self.paj7620SelectBank(BANK0)
      
      		data0 = self.paj7620ReadReg(0, 1)[0]
      		data1 = self.paj7620ReadReg(1, 1)[0]
      		if self.debug:
      			print("data0:",data0,"data1:",data1)
      		if data0 != 0x20  :#or data1 <> 0x76:
      			print("Error with sensor")
      			#return 0xff
      		if data0 == 0x20:
      			print("wake-up finish.")
      
      		for i in range(len(initRegisterArray)):
      			self.paj7620WriteReg(initRegisterArray[i][0],initRegisterArray[i][1])
      
      		self.paj7620SelectBank(BANK0)
      
      		print("Paj7620 initialize register finished.")
      
      	#Write a byte to a register on the Gesture sensor
      	def paj7620WriteReg(self,addr,cmd):
      		self.i2c.writeto_mem(self.address, addr, cmd)
      
      	#Select a register bank on the Gesture Sensor
      	def paj7620SelectBank(self,bank):
      		if bank==BANK0:
      			self.paj7620WriteReg(PAJ7620_REGITER_BANK_SEL,PAJ7620_BANK0)
      
      	#Read a block of bytes of length "qty" starting at address "addr" from the Gesture sensor
      	def paj7620ReadReg(self,addr,qty):
      		return self.i2c.readfrom_mem(self.address, addr,qty)
      
      	#Print the values from the gesture sensor
      	def print_gesture(self):
      		data=self.paj7620ReadReg(0x43,1)[0]
      		if data==GES_RIGHT_FLAG:
      			time.sleep(GES_ENTRY_TIME)
      			data=self.paj7620ReadReg(0x43, 1)[0]
      			if data == GES_FORWARD_FLAG:
      				print("Forward")
      				time.sleep(GES_QUIT_TIME)
      			elif data == GES_BACKWARD_FLAG:
      				print("Backward")
      				time.sleep(GES_QUIT_TIME)
      			else:
      				print("Right")
      
      		elif data==GES_LEFT_FLAG:
      			time.sleep(GES_ENTRY_TIME)
      			data=self.paj7620ReadReg(0x43, 1)[0]
      			if data == GES_FORWARD_FLAG:
      				print("Forward")
      				time.sleep(GES_QUIT_TIME)
      			elif data == GES_BACKWARD_FLAG:
      				print("Backward")
      				time.sleep(GES_QUIT_TIME)
      			else:
      				print("Left")
      
      		elif data==GES_UP_FLAG:
      			time.sleep(GES_ENTRY_TIME)
      			data=self.paj7620ReadReg(0x43, 1)[0]
      			if data == GES_FORWARD_FLAG:
      				print("Forward")
      				time.sleep(GES_QUIT_TIME)
      			elif data == GES_BACKWARD_FLAG:
      				print("Backward")
      				time.sleep(GES_QUIT_TIME)
      			else:
      				print("Up")
      
      		elif data==GES_DOWN_FLAG:
      			time.sleep(GES_ENTRY_TIME)
      			data=self.paj7620ReadReg(0x43, 1)[0]
      			if data == GES_FORWARD_FLAG:
      				print("Forward")
      				time.sleep(GES_QUIT_TIME)
      			elif data == GES_BACKWARD_FLAG:
      				print("Backward")
      				time.sleep(GES_QUIT_TIME)
      			else:
      				print("Down")
      
      		elif data==GES_FORWARD_FLAG:
      			print("Forward")
      			time.sleep(GES_QUIT_TIME)
      
      		elif data==GES_BACKWARD_FLAG:
      			print("Backward")
      			time.sleep(GES_QUIT_TIME)
      
      		elif data==GES_CLOCKWISE_FLAG:
      			print("Clockwise")
      
      		elif data==GES_COUNT_CLOCKWISE_FLAG:
      			print("anti-clockwise")
      
      		else:
      			data1=self.paj7620ReadReg(0x44, 1)[0]
      			if (data1 ==GES_WAVE_FLAG):
      				print("wave")
      
      	#Return a vlaue from the gestire sensor which can be used in a program
      	# 	0:nothing
      	# 	1:Forward
      	# 	2:Backward
      	# 	3:Right
      	# 	4:Left
      	# 	5:Up
      	# 	6:Down
      	# 	7:Clockwise
      	# 	8:anti-clockwise
      	# 	9:wave
      	def return_gesture(self):
      
      		data=self.paj7620ReadReg(0x43,1)[0]
      		if data==GES_RIGHT_FLAG:
      			time.sleep(GES_ENTRY_TIME)
      			data=self.paj7620ReadReg(0x43, 1)[0]
      			if data == GES_FORWARD_FLAG:
      				return 1
      				time.sleep(GES_QUIT_TIME)
      			elif data == GES_BACKWARD_FLAG:
      				return 2
      				time.sleep(GES_QUIT_TIME)
      			else:
      				return 3
      
      		elif data==GES_LEFT_FLAG:
      			time.sleep(GES_ENTRY_TIME)
      			data=self.paj7620ReadReg(0x43, 1)[0]
      			if data == GES_FORWARD_FLAG:
      				return 1
      				time.sleep(GES_QUIT_TIME)
      			elif data == GES_BACKWARD_FLAG:
      				return 2
      				time.sleep(GES_QUIT_TIME)
      			else:
      				return 4
      
      		elif data==GES_UP_FLAG:
      			time.sleep(GES_ENTRY_TIME)
      			data=self.paj7620ReadReg(0x43, 1)[0]
      			if data == GES_FORWARD_FLAG:
      				return 1
      				time.sleep(GES_QUIT_TIME)
      			elif data == GES_BACKWARD_FLAG:
      				return 2
      				time.sleep(GES_QUIT_TIME)
      			else:
      				return 5
      
      		elif data==GES_DOWN_FLAG:
      			time.sleep(GES_ENTRY_TIME)
      			data=self.paj7620ReadReg(0x43, 1)[0]
      			if data == GES_FORWARD_FLAG:
      				return 1
      				time.sleep(GES_QUIT_TIME)
      			elif data == GES_BACKWARD_FLAG:
      				return 2
      				time.sleep(GES_QUIT_TIME)
      			else:
      				return 6
      
      		elif data==GES_FORWARD_FLAG:
      			return 1
      			time.sleep(GES_QUIT_TIME)
      
      		elif data==GES_BACKWARD_FLAG:
      			return 2
      			time.sleep(GES_QUIT_TIME)
      
      		elif data==GES_CLOCKWISE_FLAG:
      			return 7
      
      		elif data==GES_COUNT_CLOCKWISE_FLAG:
      			return 8
      
      		else:
      			data1=self.paj7620ReadReg(0x44, 1)[0]
      			if (data1 == GES_WAVE_FLAG):
      				return 9
      		return 0
      
      '''
      if __name__ == "__main__":
      	g=gesture()
      	g.init()
      	while True:
      		g.print_gesture()
      		time.sleep(.1)
      		# print g.return_gesture()
      		# time.sleep(.1)
      '''
      

      @LOPY @ MICROPYTHON

      L robert-hhR 2 Replies Last reply Reply Quote 1
      • L Offline
        livius @mahmud021
        last edited by livius

        @mahmud021
        better will be adding link for lib
        or post few lines and mark which line is 362

        PS. formating post rules:
        http://commonmark.org/help/

        think about people first, then computers

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        • robert-hhR Offline
          robert-hh @mahmud021
          last edited by

          @mahmud021 There seems to be a mix of tabs and spaces in the file. Please replace all tabs by spaces. That's what cuased the error.
          Besides that, the statement:

          class gesture(self):

          seems odd. I would have expected just

          class gesture:

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          • M Offline
            mahmud021
            last edited by

            Hi team,
            Thanks all of you. I have solved the problem.

            M 1 Reply Last reply Reply Quote 1
            • M Offline
              mahmud021
              last edited by

              This post is deleted!
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              • L Offline
                livius @mahmud021
                last edited by

                @mahmud021
                You have not priviledge to upload files
                I have upvoted your 2 posts - try again to upload file - or simply put content using formatting ```
                here is full forum formatting
                http://commonmark.org/help/

                think about people first, then computers

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                • M Offline
                  mahmud021
                  last edited by

                  Library for Grove Gesture Sensor. Here is the link

                  https://github.com/rafi021/Pycom-module-Example.git

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                  • M Offline
                    M.J. van der Meer @mahmud021
                    last edited by

                    @mahmud021 Is it possible for you to share the library with the working program with me?

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                    • G Offline
                      Gijs
                      last edited by

                      I think the last link they attached: https://github.com/rafi021/Pycom-module-Example also includes the library with example

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