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"use strict" ;
const sleep = sec =>
new Promise ( r => setTimeout ( r , sec * 1000 ) ) ;
const GES _REACTION _TIME = . 100 ; // default:0.5 // You can adjust the reaction time according to the actual circumstance.
const GES _ENTRY _TIME = . 050 ; // default:0.8 // When you want to recognize the Forward/Backward gestures, your gestures' reaction time must less than GES_ENTRY_TIME(0.8s).
const GES _QUIT _TIME = 1.000 ;
const BANK0 = 0 ;
const BANK1 = 1 ;
const PAJ7620 _ADDR _BASE = 0x00 ;
//REGISTER BANK SELECT
const PAJ7620 _REGITER _BANK _SEL = ( PAJ7620 _ADDR _BASE + 0xEF ) ; //W
//DEVICE ID
// const PAJ7620_ID = 0x73;
//REGISTER BANK 0
const PAJ7620 _ADDR _SUSPEND _CMD = ( PAJ7620 _ADDR _BASE + 0x3 ) ; //W
const PAJ7620 _ADDR _GES _PS _DET _MASK _0 = ( PAJ7620 _ADDR _BASE + 0x41 ) ; //RW
const PAJ7620 _ADDR _GES _PS _DET _MASK _1 = ( PAJ7620 _ADDR _BASE + 0x42 ) ; //RW
const PAJ7620 _ADDR _GES _PS _DET _FLAG _0 = ( PAJ7620 _ADDR _BASE + 0x43 ) ; //R
const PAJ7620 _ADDR _GES _PS _DET _FLAG _1 = ( PAJ7620 _ADDR _BASE + 0x44 ) ; //R
const PAJ7620 _ADDR _STATE _INDICATOR = ( PAJ7620 _ADDR _BASE + 0x45 ) ; //R
const PAJ7620 _ADDR _PS _HIGH _THRESHOLD = ( PAJ7620 _ADDR _BASE + 0x69 ) ; //RW
const PAJ7620 _ADDR _PS _LOW _THRESHOLD = ( PAJ7620 _ADDR _BASE + 0x6A ) ; //RW
const PAJ7620 _ADDR _PS _APPROACH _STATE = ( PAJ7620 _ADDR _BASE + 0x6B ) ; //R
const PAJ7620 _ADDR _PS _RAW _DATA = ( PAJ7620 _ADDR _BASE + 0x6C ) ; //R
//REGISTER BANK 1
const PAJ7620 _ADDR _PS _GAIN = ( PAJ7620 _ADDR _BASE + 0x44 ) ; //RW
const PAJ7620 _ADDR _IDLE _S1 _STEP _0 = ( PAJ7620 _ADDR _BASE + 0x67 ) ; //RW
const PAJ7620 _ADDR _IDLE _S1 _STEP _1 = ( PAJ7620 _ADDR _BASE + 0x68 ) ; //RW
const PAJ7620 _ADDR _IDLE _S2 _STEP _0 = ( PAJ7620 _ADDR _BASE + 0x69 ) ; //RW
const PAJ7620 _ADDR _IDLE _S2 _STEP _1 = ( PAJ7620 _ADDR _BASE + 0x6A ) ; //RW
const PAJ7620 _ADDR _OP _TO _S1 _STEP _0 = ( PAJ7620 _ADDR _BASE + 0x6B ) ; //RW
const PAJ7620 _ADDR _OP _TO _S1 _STEP _1 = ( PAJ7620 _ADDR _BASE + 0x6C ) ; //RW
const PAJ7620 _ADDR _OP _TO _S2 _STEP _0 = ( PAJ7620 _ADDR _BASE + 0x6D ) ; //RW
const PAJ7620 _ADDR _OP _TO _S2 _STEP _1 = ( PAJ7620 _ADDR _BASE + 0x6E ) ; //RW
const PAJ7620 _ADDR _OPERATION _ENABLE = ( PAJ7620 _ADDR _BASE + 0x72 ) ; //RW
//PAJ7620_REGITER_BANK_SEL
const PAJ7620 _BANK0 = 0 ;
const PAJ7620 _BANK1 = 1 ;
//PAJ7620_ADDR_SUSPEND_CMD
const PAJ7620 _I2C _WAKEUP = 1 ;
const PAJ7620 _I2C _SUSPEND = 0 ;
//PAJ7620_ADDR_OPERATION_ENABLE
const PAJ7620 _ENABLE = 1 ;
const PAJ7620 _DISABLE = 0 ;
//ADC, delete
const REG _ADDR _RESULT = 0x00 ;
const REG _ADDR _ALERT = 0x01 ;
const REG _ADDR _CONFIG = 0x02 ;
const REG _ADDR _LIMITL = 0x03 ;
const REG _ADDR _LIMITH = 0x04 ;
const REG _ADDR _HYST = 0x05 ;
const REG _ADDR _CONVL = 0x06 ;
const REG _ADDR _CONVH = 0x07 ;
const GES _RIGHT _FLAG = 1 << 0 ;
const GES _LEFT _FLAG = 1 << 1 ;
const GES _UP _FLAG = 1 << 2 ;
const GES _DOWN _FLAG = 1 << 3 ;
const GES _FORWARD _FLAG = 1 << 4 ;
const GES _BACKWARD _FLAG = 1 << 5 ;
const GES _CLOCKWISE _FLAG = 1 << 6 ;
const GES _COUNT _CLOCKWISE _FLAG = 1 << 7 ;
const GES _WAVE _FLAG = 1 << 0 ;
//Gesture output
exports . FORWARD = 1 ;
exports . BACKWARD = 2 ;
exports . RIGHT = 3 ;
exports . LEFT = 4 ;
exports . UP = 5 ;
exports . DOWN = 6 ;
exports . CLOCKWISE = 7 ;
exports . ANTI _CLOCKWISE = 8 ;
exports . WAVE = 9 ;
//Initial register state
const 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
const debug = 1 ;
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const err _msg = 'PAJ7620 is already opened. Please close old connection to use new one.' ;
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let rg = - 1 ;
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// let sbc = -1;
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let i2c _hand = - 1 ;
//Initialize the sensors
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exports . init = async ( _rg , i2c _bus , i2c _addr ) => {
// if (wael !== null) {
// wael('beforeunload', async () => {
// await exports.stop();
// });
// }
// rg = require(`rgpio`);//${apptool.gpio_lib}
// if (sbc >= 0) { throw new Error(err_msg); return; }
// sbc = await rg._rgpiod_start('', '');
rg = _rg ;
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if ( i2c _hand >= 0 ) { throw new Error ( err _msg ) ; return ; }
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i2c _hand = await rg . i2c _open ( i2c _bus , i2c _addr , 0 ) ;
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if ( debug )
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console . log ( "i2c_hand=" + i2c _hand ) ;
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await sleep ( . 001 ) ;
await paj7620SelectBank ( BANK0 ) ;
await paj7620SelectBank ( BANK0 ) ;
let data0 = ( await paj7620ReadReg ( 0 , 1 ) ) [ 0 ] ;
let data1 = ( await paj7620ReadReg ( 1 , 1 ) ) [ 0 ] ;
if ( debug )
console . log ( "data0:" + data0 + ", data1:" + data1 ) ;
if ( data0 != 0x20 ) //or data1 <> 0x76
console . log ( "Error with sensor" ) ;
//return 0xff
if ( data0 == 0x20 )
console . log ( "wake-up finish." ) ;
for ( let i = 0 ; i < initRegisterArray . length ; i += 1 )
await paj7620WriteReg ( initRegisterArray [ i ] [ 0 ] , initRegisterArray [ i ] [ 1 ] ) ;
await paj7620SelectBank ( BANK0 ) ;
console . log ( "Paj7620 initialize register finished." ) ;
}
// Write a byte to a register on the Gesture sensor
const paj7620WriteReg = async ( addr , cmd ) =>
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await rg . i2c _write _word _data ( i2c _hand , addr , cmd ) ;
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//Select a register bank on the Gesture Sensor
const paj7620SelectBank = async bank => {
if ( bank == BANK0 )
await paj7620WriteReg ( PAJ7620 _REGITER _BANK _SEL , PAJ7620 _BANK0 ) ;
}
//Read a block of bytes of length "qty" starting at address "addr" from the Gesture sensor
const paj7620ReadReg = async ( addr , qty ) => {
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return await rg . i2c _read _i2c _block _data ( i2c _hand , addr , qty ) ;
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}
//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
exports . return _gesture = async ( ) => {
let data = ( await paj7620ReadReg ( 0x43 , 1 ) ) [ 0 ] ;
if ( data == GES _RIGHT _FLAG ) {
await sleep ( GES _ENTRY _TIME ) ;
data = ( await paj7620ReadReg ( 0x43 , 1 ) ) [ 0 ] ;
if ( data == GES _FORWARD _FLAG ) {
return 1 ;
}
else if ( data == GES _BACKWARD _FLAG ) {
return 2 ;
}
else
return 3 ;
}
else if ( data == GES _LEFT _FLAG ) {
await sleep ( GES _ENTRY _TIME ) ;
data = ( await paj7620ReadReg ( 0x43 , 1 ) ) [ 0 ] ;
if ( data == GES _FORWARD _FLAG ) {
return 1 ;
}
else if ( data == GES _BACKWARD _FLAG ) {
return 2 ;
}
else
return 4 ;
}
else if ( data == GES _UP _FLAG ) {
await sleep ( GES _ENTRY _TIME ) ;
data = ( await paj7620ReadReg ( 0x43 , 1 ) ) [ 0 ] ;
if ( data == GES _FORWARD _FLAG ) {
return 1 ;
}
else if ( data == GES _BACKWARD _FLAG ) {
return 2 ;
}
else
return 5 ;
}
else if ( data == GES _DOWN _FLAG ) {
await sleep ( GES _ENTRY _TIME ) ;
data = ( await paj7620ReadReg ( 0x43 , 1 ) ) [ 0 ] ;
if ( data == GES _FORWARD _FLAG ) {
return 1 ;
}
else if ( data == GES _BACKWARD _FLAG ) {
return 2 ;
}
else
return 6 ;
}
else if ( data == GES _FORWARD _FLAG ) {
return 1 ;
}
else if ( data == GES _BACKWARD _FLAG ) {
return 2 ;
}
else if ( data == GES _CLOCKWISE _FLAG )
return 7 ;
else if ( data == GES _COUNT _CLOCKWISE _FLAG )
return 8 ;
else {
let data1 = ( await paj7620ReadReg ( 0x44 , 1 ) ) [ 0 ] ;
if ( data1 == GES _WAVE _FLAG )
return 9 ;
}
return 0 ;
}
exports . stop = async ( ) => {
if ( i2c _hand >= 0 ) {
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await rg . i2c _close ( i2c _hand ) ;
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i2c _hand = - 1 ;
}
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// if (sbc >= 0) {
// await rg.rgpiod_stop(sbc);
// sbc = -1;
// }
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}
/ *
* This code was ported from "Grove - Gesture Sensor v1.0 Python library and examples" : https : //github.com/DexterInd/GrovePi/tree/master/Software/Python/grove_gesture_sensor
* /