Refactor intval library to use object. The nature of the GPIO module in use breaks references to this
This commit is contained in:
parent
15d9225c04
commit
6218d8d585
|
|
@ -1,54 +1,54 @@
|
||||||
<a name="Intval"></a>
|
<a name="intval"></a>
|
||||||
|
|
||||||
## Intval
|
## intval
|
||||||
Class representing the intval3 features
|
Object representing the intval3 features
|
||||||
|
|
||||||
**Kind**: global class
|
**Kind**: global constant
|
||||||
|
|
||||||
* [Intval](#Intval)
|
* [intval](#intval)
|
||||||
* [._declarePins()](#Intval+_declarePins)
|
* [._declarePins()](#intval._declarePins)
|
||||||
* [._undeclarePins()](#Intval+_undeclarePins)
|
* [._undeclarePins()](#intval._undeclarePins)
|
||||||
* [._startFwd()](#Intval+_startFwd)
|
* [._startFwd()](#intval._startFwd)
|
||||||
* [._startBwd()](#Intval+_startBwd)
|
* [._startBwd()](#intval._startBwd)
|
||||||
* [._stop()](#Intval+_stop)
|
* [._stop()](#intval._stop)
|
||||||
* [._watchMicro(err, val)](#Intval+_watchMicro)
|
* [._watchMicro(err, val)](#intval._watchMicro)
|
||||||
* [._watchRelease(err, val)](#Intval+_watchRelease)
|
* [._watchRelease(err, val)](#intval._watchRelease)
|
||||||
* [.setDir([dir])](#Intval+setDir)
|
* [.setDir([dir])](#intval.setDir)
|
||||||
* [.frame([dir], [time])](#Intval+frame)
|
* [.frame([dir], [time])](#intval.frame)
|
||||||
* [.sequence()](#Intval+sequence)
|
* [.sequence()](#intval.sequence)
|
||||||
|
|
||||||
<a name="Intval+_declarePins"></a>
|
<a name="intval._declarePins"></a>
|
||||||
|
|
||||||
### intval._declarePins()
|
### intval._declarePins()
|
||||||
(internal function) Declares all Gpio pins that will be used
|
(internal function) Declares all Gpio pins that will be used
|
||||||
|
|
||||||
**Kind**: instance method of [<code>Intval</code>](#Intval)
|
**Kind**: static method of [<code>intval</code>](#intval)
|
||||||
<a name="Intval+_undeclarePins"></a>
|
<a name="intval._undeclarePins"></a>
|
||||||
|
|
||||||
### intval._undeclarePins()
|
### intval._undeclarePins()
|
||||||
(internal function) Undeclares all Gpio in event of uncaught error
|
(internal function) Undeclares all Gpio in event of uncaught error
|
||||||
that interupts the node process
|
that interupts the node process
|
||||||
|
|
||||||
**Kind**: instance method of [<code>Intval</code>](#Intval)
|
**Kind**: static method of [<code>intval</code>](#intval)
|
||||||
<a name="Intval+_startFwd"></a>
|
<a name="intval._startFwd"></a>
|
||||||
|
|
||||||
### intval._startFwd()
|
### intval._startFwd()
|
||||||
Start motor in forward direction by setting correct pins in h-bridge
|
Start motor in forward direction by setting correct pins in h-bridge
|
||||||
|
|
||||||
**Kind**: instance method of [<code>Intval</code>](#Intval)
|
**Kind**: static method of [<code>intval</code>](#intval)
|
||||||
<a name="Intval+_startBwd"></a>
|
<a name="intval._startBwd"></a>
|
||||||
|
|
||||||
### intval._startBwd()
|
### intval._startBwd()
|
||||||
Start motor in backward direction by setting correct pins in h-bridge
|
Start motor in backward direction by setting correct pins in h-bridge
|
||||||
|
|
||||||
**Kind**: instance method of [<code>Intval</code>](#Intval)
|
**Kind**: static method of [<code>intval</code>](#intval)
|
||||||
<a name="Intval+_stop"></a>
|
<a name="intval._stop"></a>
|
||||||
|
|
||||||
### intval._stop()
|
### intval._stop()
|
||||||
Stop motor by setting both motor pins to 0 (LOW)
|
Stop motor by setting both motor pins to 0 (LOW)
|
||||||
|
|
||||||
**Kind**: instance method of [<code>Intval</code>](#Intval)
|
**Kind**: static method of [<code>intval</code>](#intval)
|
||||||
<a name="Intval+_watchMicro"></a>
|
<a name="intval._watchMicro"></a>
|
||||||
|
|
||||||
### intval._watchMicro(err, val)
|
### intval._watchMicro(err, val)
|
||||||
Callback for watching relese switch state changes.
|
Callback for watching relese switch state changes.
|
||||||
|
|
@ -61,14 +61,14 @@ Microswitch + 10K ohm resistor
|
||||||
* 1 === open
|
* 1 === open
|
||||||
* 0 === closed
|
* 0 === closed
|
||||||
|
|
||||||
**Kind**: instance method of [<code>Intval</code>](#Intval)
|
**Kind**: static method of [<code>intval</code>](#intval)
|
||||||
|
|
||||||
| Param | Type | Description |
|
| Param | Type | Description |
|
||||||
| --- | --- | --- |
|
| --- | --- | --- |
|
||||||
| err | <code>object</code> | Error object present if problem reading pin |
|
| err | <code>object</code> | Error object present if problem reading pin |
|
||||||
| val | <code>integer</code> | Current value of the pin |
|
| val | <code>integer</code> | Current value of the pin |
|
||||||
|
|
||||||
<a name="Intval+_watchRelease"></a>
|
<a name="intval._watchRelease"></a>
|
||||||
|
|
||||||
### intval._watchRelease(err, val)
|
### intval._watchRelease(err, val)
|
||||||
Callback for watching relese switch state changes.
|
Callback for watching relese switch state changes.
|
||||||
|
|
@ -76,48 +76,48 @@ Using GPIO 05 on Raspberry Pi Zero W.
|
||||||
|
|
||||||
1) If closed, start timer.
|
1) If closed, start timer.
|
||||||
2) If opened, check timer AND
|
2) If opened, check timer AND
|
||||||
3) If `press` (`NOW - this._state.release.time`) greater than minimum and less than `this._releaseSequence`, start frame
|
3) If `press` (`now - intval._state.release.time`) greater than minimum and less than `intval._releaseSequence`, start frame
|
||||||
4) If `press` greater than `this._releaseSequence`, start sequence
|
4) If `press` greater than `intval._releaseSequence`, start sequence
|
||||||
|
|
||||||
Button + 10K ohm resistor
|
Button + 10K ohm resistor
|
||||||
* 1 === open
|
* 1 === open
|
||||||
* 0 === closed
|
* 0 === closed
|
||||||
|
|
||||||
**Kind**: instance method of [<code>Intval</code>](#Intval)
|
**Kind**: static method of [<code>intval</code>](#intval)
|
||||||
|
|
||||||
| Param | Type | Description |
|
| Param | Type | Description |
|
||||||
| --- | --- | --- |
|
| --- | --- | --- |
|
||||||
| err | <code>object</code> | Error object present if problem reading pin |
|
| err | <code>object</code> | Error object present if problem reading pin |
|
||||||
| val | <code>integer</code> | Current value of the pin |
|
| val | <code>integer</code> | Current value of the pin |
|
||||||
|
|
||||||
<a name="Intval+setDir"></a>
|
<a name="intval.setDir"></a>
|
||||||
|
|
||||||
### intval.setDir([dir])
|
### intval.setDir([dir])
|
||||||
Set the default direction of the camera.
|
Set the default direction of the camera.
|
||||||
* forward = true
|
* forward = true
|
||||||
* backward = false
|
* backward = false
|
||||||
|
|
||||||
**Kind**: instance method of [<code>Intval</code>](#Intval)
|
**Kind**: static method of [<code>intval</code>](#intval)
|
||||||
|
|
||||||
| Param | Type | Default | Description |
|
| Param | Type | Default | Description |
|
||||||
| --- | --- | --- | --- |
|
| --- | --- | --- | --- |
|
||||||
| [dir] | <code>boolean</code> | <code>true</code> | Direction of the camera |
|
| [dir] | <code>boolean</code> | <code>true</code> | Direction of the camera |
|
||||||
|
|
||||||
<a name="Intval+frame"></a>
|
<a name="intval.frame"></a>
|
||||||
|
|
||||||
### intval.frame([dir], [time])
|
### intval.frame([dir], [time])
|
||||||
Begin a single frame with set variables or defaults
|
Begin a single frame with set variables or defaults
|
||||||
|
|
||||||
**Kind**: instance method of [<code>Intval</code>](#Intval)
|
**Kind**: static method of [<code>intval</code>](#intval)
|
||||||
|
|
||||||
| Param | Type | Default | Description |
|
| Param | Type | Default | Description |
|
||||||
| --- | --- | --- | --- |
|
| --- | --- | --- | --- |
|
||||||
| [dir] | <code>boolean</code> | <code>"null"</code> | (optional) Direction of the frame |
|
| [dir] | <code>boolean</code> | <code>"null"</code> | (optional) Direction of the frame |
|
||||||
| [time] | <code>integer</code> | <code>"null"</code> | (optional) Exposure time, 0 = minimum |
|
| [time] | <code>integer</code> | <code>"null"</code> | (optional) Exposure time, 0 = minimum |
|
||||||
|
|
||||||
<a name="Intval+sequence"></a>
|
<a name="intval.sequence"></a>
|
||||||
|
|
||||||
### intval.sequence()
|
### intval.sequence()
|
||||||
Start a sequence of frames, using defaults or explicit instructions
|
Start a sequence of frames, using defaults or explicit instructions
|
||||||
|
|
||||||
**Kind**: instance method of [<code>Intval</code>](#Intval)
|
**Kind**: static method of [<code>intval</code>](#intval)
|
||||||
|
|
|
||||||
|
|
@ -32,256 +32,256 @@ const PINS = {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
/** Class representing the intval3 features */
|
/** Object representing the intval3 features */
|
||||||
class Intval {
|
const intval = {}
|
||||||
constructor () {
|
|
||||||
this._pin = {}
|
|
||||||
this._state = {
|
|
||||||
dir : true, //forward
|
|
||||||
frame : {
|
|
||||||
start : 0, //time frame started, timestamp
|
|
||||||
active : false, //should frame be running
|
|
||||||
time : 0, //length of frame, in ms
|
|
||||||
delay : 0, //delay before start of frame, in ms
|
|
||||||
|
|
||||||
expected : 1000 //expected length of frame, in ms
|
intval.init = function () {
|
||||||
},
|
intval._pin = {}
|
||||||
release : {
|
intval._state = {
|
||||||
time: 0,
|
dir : true, //forward
|
||||||
active : false //is pressed
|
frame : {
|
||||||
},
|
start : 0, //time frame started, timestamp
|
||||||
micro : {
|
active : false, //should frame be running
|
||||||
time : 0,
|
time : 0, //length of frame, in ms
|
||||||
primed : false //is ready to stop frame
|
delay : 0, //delay before start of frame, in ms
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
this._releaseMin = 50
|
|
||||||
this._releaseSequence = 1000
|
|
||||||
this._microDelay = 10 // delay after stop signal before stopping motors
|
|
||||||
|
|
||||||
this._declarePins()
|
expected : 1000 //expected length of frame, in ms
|
||||||
process.on('SIGINT', this._undeclarePins)
|
},
|
||||||
process.on('uncaughtException', this._undeclarePins)
|
release : {
|
||||||
}
|
time: 0,
|
||||||
/**
|
active : false //is pressed
|
||||||
* (internal function) Declares all Gpio pins that will be used
|
},
|
||||||
*
|
micro : {
|
||||||
*/
|
time : 0,
|
||||||
_declarePins () {
|
primed : false //is ready to stop frame
|
||||||
let pin
|
|
||||||
for (let p in PINS) {
|
|
||||||
pin = PINS[p]
|
|
||||||
if (pin.edge) this._pin[p] = Gpio(pin.pin, pin.dir, pin.edge)
|
|
||||||
if (!pin.edge) this._pin[p] = Gpio(pin.pin, pin.dir)
|
|
||||||
log.info('_declarePins', { pin : pin.pin, dir : pin.dir, edge : pin.edge })
|
|
||||||
}
|
}
|
||||||
this._pin.release.watch(this._watchRelease)
|
|
||||||
}
|
}
|
||||||
/**
|
|
||||||
* (internal function) Undeclares all Gpio in event of uncaught error
|
intval._releaseMin = 50
|
||||||
* that interupts the node process
|
intval._releaseSequence = 1000
|
||||||
*
|
intval._microDelay = 10 // delay after stop signal before stopping motors
|
||||||
*/
|
|
||||||
_undeclarePins (e) {
|
|
||||||
log.error(e)
|
|
||||||
if (!this._pin) {
|
|
||||||
log.warn('_undeclarePins', { reason : 'No pins'})
|
|
||||||
return process.exit()
|
|
||||||
}
|
|
||||||
log.warn('_undeclarePins', { pin : PINS.fwd.pin, val : 0, reason : 'exiting'})
|
|
||||||
this._pin.fwd.writeSync(0)
|
|
||||||
log.warn('_undeclarePins', { pin : PINS.bwd.pin, val : 0, reason : 'exiting'})
|
|
||||||
this._pin.bwd.writeSync(0)
|
|
||||||
this._pin.fwd.unexport()
|
|
||||||
this._pin.bwd.unexport()
|
|
||||||
this._pin.micro.unexport()
|
|
||||||
this._pin.release.unexport()
|
|
||||||
process.exit()
|
|
||||||
}
|
|
||||||
/**
|
|
||||||
* Start motor in forward direction by setting correct pins in h-bridge
|
|
||||||
*
|
|
||||||
*/
|
|
||||||
_startFwd () {
|
|
||||||
this._pin.fwd.writeSync(1)
|
|
||||||
this._pin.bwd.writeSync(0)
|
|
||||||
//start high-cpu watch
|
|
||||||
}
|
|
||||||
/**
|
|
||||||
* Start motor in backward direction by setting correct pins in h-bridge
|
|
||||||
*
|
|
||||||
*/
|
|
||||||
_startBwd () {
|
|
||||||
this._pin.fwd.writeSync(0)
|
|
||||||
this._pin.bwd.writeSync(1)
|
|
||||||
}
|
|
||||||
/**
|
|
||||||
* Stop motor by setting both motor pins to 0 (LOW)
|
|
||||||
*
|
|
||||||
*/
|
|
||||||
_stop () {
|
|
||||||
this._pin.fwd.writeSync(0)
|
|
||||||
this._pin.bwd.writeSync(0)
|
|
||||||
|
|
||||||
let len = (+new Date()) - this._state.frame.start
|
intval._declarePins()
|
||||||
|
process.on('SIGINT', intval._undeclarePins)
|
||||||
log.info(`Frame stopped ${len}ms`)
|
process.on('uncaughtException', intval._undeclarePins)
|
||||||
|
}
|
||||||
this._pin.micro.unwatch()
|
/**
|
||||||
this._state.frame.active = false
|
* (internal function) Declares all Gpio pins that will be used
|
||||||
this._state.frame.start = 0
|
*
|
||||||
|
*/
|
||||||
|
intval._declarePins = function () {
|
||||||
|
let pin
|
||||||
|
for (let p in PINS) {
|
||||||
|
pin = PINS[p]
|
||||||
|
if (pin.edge) intval._pin[p] = Gpio(pin.pin, pin.dir, pin.edge)
|
||||||
|
if (!pin.edge) intval._pin[p] = Gpio(pin.pin, pin.dir)
|
||||||
|
log.info('_declarePins', { pin : pin.pin, dir : pin.dir, edge : pin.edge })
|
||||||
}
|
}
|
||||||
/**
|
intval._pin.release.watch(intval._watchRelease)
|
||||||
* Callback for watching relese switch state changes.
|
}
|
||||||
* Using GPIO 06 on Raspberry Pi Zero W.
|
/**
|
||||||
*
|
* (internal function) Undeclares all Gpio in event of uncaught error
|
||||||
* 1) If closed AND frame active, start timer, set state primed to `true`.
|
* that interupts the node process
|
||||||
* 1) If opened AND frame active, stop frame
|
*
|
||||||
*
|
*/
|
||||||
* Microswitch + 10K ohm resistor
|
intval._undeclarePins = function (e) {
|
||||||
* * 1 === open
|
log.error(e)
|
||||||
* * 0 === closed
|
if (!intval._pin) {
|
||||||
*
|
log.warn('_undeclarePins', { reason : 'No pins'})
|
||||||
*
|
return process.exit()
|
||||||
* @param {object} err Error object present if problem reading pin
|
|
||||||
* @param {integer} val Current value of the pin
|
|
||||||
*
|
|
||||||
*/
|
|
||||||
_watchMicro (err, val) {
|
|
||||||
const NOW = +new Date()
|
|
||||||
if (err) {
|
|
||||||
log.error('_watchMicro', err)
|
|
||||||
}
|
|
||||||
//determine when to stop
|
|
||||||
if (val === 0 && this._state.frame.active) {
|
|
||||||
if (!this._state.micro.primed) {
|
|
||||||
this._state.micro.primed = true
|
|
||||||
this._state.micro.time = NOW
|
|
||||||
log.info('Mircoswitch primed to stop motor')
|
|
||||||
}
|
|
||||||
} else if (val === 1 && this._state.frame.active) {
|
|
||||||
if (this._state.micro.primed) {
|
|
||||||
this._state.micro.primed = false
|
|
||||||
this._state.micro.time = 0
|
|
||||||
setTimeout( () => {
|
|
||||||
log.info(`Stopped frame after ${NOW - this._state.micro.time}ms`)
|
|
||||||
}, this._microDelay)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
/**
|
|
||||||
* Callback for watching relese switch state changes.
|
|
||||||
* Using GPIO 05 on Raspberry Pi Zero W.
|
|
||||||
*
|
|
||||||
* 1) If closed, start timer.
|
|
||||||
* 2) If opened, check timer AND
|
|
||||||
* 3) If `press` (`now - this._state.release.time`) greater than minimum and less than `this._releaseSequence`, start frame
|
|
||||||
* 4) If `press` greater than `this._releaseSequence`, start sequence
|
|
||||||
*
|
|
||||||
* Button + 10K ohm resistor
|
|
||||||
* * 1 === open
|
|
||||||
* * 0 === closed
|
|
||||||
*
|
|
||||||
* @param {object} err Error object present if problem reading pin
|
|
||||||
* @param {integer} val Current value of the pin
|
|
||||||
*
|
|
||||||
*/
|
|
||||||
_watchRelease (err, val) {
|
|
||||||
const now = +new Date()
|
|
||||||
let press = 0
|
|
||||||
if (err) {
|
|
||||||
return log.error(err)
|
|
||||||
}
|
|
||||||
log.info(`Release switch val: ${val}`)
|
|
||||||
if (val === 0) {
|
|
||||||
//closed
|
|
||||||
if (this._releaseClosedState(now)) {
|
|
||||||
this._state.release.time = now
|
|
||||||
this._state.release.active = true //maybe unncecessary
|
|
||||||
}
|
|
||||||
} else if (val === 1) {
|
|
||||||
//opened
|
|
||||||
if (this._state.release.active) {
|
|
||||||
press = now - this._state.release.time
|
|
||||||
if (press > this._releaseMin && press < this._releaseSequence) {
|
|
||||||
this.frame()
|
|
||||||
} else if (press >= this._releaseSequence) {
|
|
||||||
this.sequence()
|
|
||||||
}
|
|
||||||
log.info(`Release closed for ${press}ms`)
|
|
||||||
this._state.release.time = 0
|
|
||||||
this._state.release.active = false
|
|
||||||
}
|
|
||||||
}
|
|
||||||
log.info('completed if statement')
|
|
||||||
}
|
}
|
||||||
|
log.warn('_undeclarePins', { pin : PINS.fwd.pin, val : 0, reason : 'exiting'})
|
||||||
|
intval._pin.fwd.writeSync(0)
|
||||||
|
log.warn('_undeclarePins', { pin : PINS.bwd.pin, val : 0, reason : 'exiting'})
|
||||||
|
intval._pin.bwd.writeSync(0)
|
||||||
|
intval._pin.fwd.unexport()
|
||||||
|
intval._pin.bwd.unexport()
|
||||||
|
intval._pin.micro.unexport()
|
||||||
|
intval._pin.release.unexport()
|
||||||
|
process.exit()
|
||||||
|
}
|
||||||
|
/**
|
||||||
|
* Start motor in forward direction by setting correct pins in h-bridge
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
intval._startFwd = function () {
|
||||||
|
intval._pin.fwd.writeSync(1)
|
||||||
|
intval._pin.bwd.writeSync(0)
|
||||||
|
//start high-cpu watch
|
||||||
|
}
|
||||||
|
/**
|
||||||
|
* Start motor in backward direction by setting correct pins in h-bridge
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
intval._startBwd = function () {
|
||||||
|
intval._pin.fwd.writeSync(0)
|
||||||
|
intval._pin.bwd.writeSync(1)
|
||||||
|
}
|
||||||
|
/**
|
||||||
|
* Stop motor by setting both motor pins to 0 (LOW)
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
intval._stop = function () {
|
||||||
|
intval._pin.fwd.writeSync(0)
|
||||||
|
intval._pin.bwd.writeSync(0)
|
||||||
|
|
||||||
_releaseClosedState (now) {
|
let len = (+new Date()) - intval._state.frame.start
|
||||||
if (!this._state.release.active && this._state.release.time === 0) {
|
|
||||||
return true
|
|
||||||
}
|
|
||||||
if (this._state.release.active && (now - this._state.release.time) > (this._releaseSequence * 10)) {
|
|
||||||
return true
|
|
||||||
}
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
/**
|
|
||||||
* Set the default direction of the camera.
|
|
||||||
* * forward = true
|
|
||||||
* * backward = false
|
|
||||||
*
|
|
||||||
* @param {boolean} [dir=true] Direction of the camera
|
|
||||||
*
|
|
||||||
*/
|
|
||||||
setDir (val = true) {
|
|
||||||
if (typeof val !== 'boolean') {
|
|
||||||
return log.warn('Direction must be represented as either true or false')
|
|
||||||
}
|
|
||||||
this._state.dir = val
|
|
||||||
}
|
|
||||||
/**
|
|
||||||
* Begin a single frame with set variables or defaults
|
|
||||||
*
|
|
||||||
* @param {?boolean} [dir="null"] (optional) Direction of the frame
|
|
||||||
* @param {?integer} [time="null"] (optional) Exposure time, 0 = minimum
|
|
||||||
*
|
|
||||||
*/
|
|
||||||
frame (dir = null, time = null) {
|
|
||||||
if (dir === true || (dir === null && this._state.dir === true) ) {
|
|
||||||
dir = true
|
|
||||||
} else {
|
|
||||||
dir = false
|
|
||||||
}
|
|
||||||
|
|
||||||
if (time === null && this._state.time !== 0) {
|
|
||||||
time = this._state.time
|
|
||||||
} else {
|
|
||||||
time = 0
|
|
||||||
}
|
|
||||||
|
|
||||||
this._state.frame.start = +new Date()
|
log.info(`Frame stopped ${len}ms`)
|
||||||
this._state.frame.active = true
|
|
||||||
this._pin.micro.watch(this._watchMicro)
|
|
||||||
|
|
||||||
log.info('frame', {dir : dir, time : time})
|
intval._pin.micro.unwatch()
|
||||||
|
intval._state.frame.active = false
|
||||||
if (dir) {
|
intval._state.frame.start = 0
|
||||||
this._startFwd()
|
}
|
||||||
} else {
|
/**
|
||||||
this._startBwd()
|
* Callback for watching relese switch state changes.
|
||||||
|
* Using GPIO 06 on Raspberry Pi Zero W.
|
||||||
|
*
|
||||||
|
* 1) If closed AND frame active, start timer, set state primed to `true`.
|
||||||
|
* 1) If opened AND frame active, stop frame
|
||||||
|
*
|
||||||
|
* Microswitch + 10K ohm resistor
|
||||||
|
* * 1 === open
|
||||||
|
* * 0 === closed
|
||||||
|
*
|
||||||
|
*
|
||||||
|
* @param {object} err Error object present if problem reading pin
|
||||||
|
* @param {integer} val Current value of the pin
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
intval._watchMicro = function (err, val) {
|
||||||
|
const NOW = +new Date()
|
||||||
|
if (err) {
|
||||||
|
log.error('_watchMicro', err)
|
||||||
|
}
|
||||||
|
//determine when to stop
|
||||||
|
if (val === 0 && intval._state.frame.active) {
|
||||||
|
if (!intval._state.micro.primed) {
|
||||||
|
intval._state.micro.primed = true
|
||||||
|
intval._state.micro.time = NOW
|
||||||
|
log.info('Mircoswitch primed to stop motor')
|
||||||
|
}
|
||||||
|
} else if (val === 1 && intval._state.frame.active) {
|
||||||
|
if (intval._state.micro.primed) {
|
||||||
|
intval._state.micro.primed = false
|
||||||
|
intval._state.micro.time = 0
|
||||||
|
setTimeout( () => {
|
||||||
|
log.info(`Stopped frame after ${NOW - intval._state.micro.time}ms`)
|
||||||
|
}, intval._microDelay)
|
||||||
}
|
}
|
||||||
}
|
|
||||||
/**
|
|
||||||
* Start a sequence of frames, using defaults or explicit instructions
|
|
||||||
*
|
|
||||||
*/
|
|
||||||
sequence () {
|
|
||||||
log.info('sequence', `Started sequence`)
|
|
||||||
}
|
|
||||||
status () {
|
|
||||||
return this._state
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
/**
|
||||||
|
* Callback for watching relese switch state changes.
|
||||||
|
* Using GPIO 05 on Raspberry Pi Zero W.
|
||||||
|
*
|
||||||
|
* 1) If closed, start timer.
|
||||||
|
* 2) If opened, check timer AND
|
||||||
|
* 3) If `press` (`now - intval._state.release.time`) greater than minimum and less than `intval._releaseSequence`, start frame
|
||||||
|
* 4) If `press` greater than `intval._releaseSequence`, start sequence
|
||||||
|
*
|
||||||
|
* Button + 10K ohm resistor
|
||||||
|
* * 1 === open
|
||||||
|
* * 0 === closed
|
||||||
|
*
|
||||||
|
* @param {object} err Error object present if problem reading pin
|
||||||
|
* @param {integer} val Current value of the pin
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
intval._watchRelease = function (err, val) {
|
||||||
|
const now = +new Date()
|
||||||
|
let press = 0
|
||||||
|
if (err) {
|
||||||
|
return log.error(err)
|
||||||
|
}
|
||||||
|
log.info(`Release switch val: ${val}`)
|
||||||
|
if (val === 0) {
|
||||||
|
//closed
|
||||||
|
if (intval._releaseClosedState(now)) {
|
||||||
|
intval._state.release.time = now
|
||||||
|
intval._state.release.active = true //maybe unncecessary
|
||||||
|
}
|
||||||
|
} else if (val === 1) {
|
||||||
|
//opened
|
||||||
|
if (intval._state.release.active) {
|
||||||
|
press = now - intval._state.release.time
|
||||||
|
if (press > intval._releaseMin && press < intval._releaseSequence) {
|
||||||
|
intval.frame()
|
||||||
|
} else if (press >= intval._releaseSequence) {
|
||||||
|
intval.sequence()
|
||||||
|
}
|
||||||
|
log.info(`Release closed for ${press}ms`)
|
||||||
|
intval._state.release.time = 0
|
||||||
|
intval._state.release.active = false
|
||||||
|
}
|
||||||
|
}
|
||||||
|
log.info('completed if statement')
|
||||||
|
}
|
||||||
|
|
||||||
module.exports = new Intval()
|
intval._releaseClosedState = function (now) {
|
||||||
|
if (!intval._state.release.active && intval._state.release.time === 0) {
|
||||||
|
return true
|
||||||
|
}
|
||||||
|
if (intval._state.release.active && (now - intval._state.release.time) > (intval._releaseSequence * 10)) {
|
||||||
|
return true
|
||||||
|
}
|
||||||
|
return false
|
||||||
|
}
|
||||||
|
/**
|
||||||
|
* Set the default direction of the camera.
|
||||||
|
* * forward = true
|
||||||
|
* * backward = false
|
||||||
|
*
|
||||||
|
* @param {boolean} [dir=true] Direction of the camera
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
intval.setDir = function (val = true) {
|
||||||
|
if (typeof val !== 'boolean') {
|
||||||
|
return log.warn('Direction must be represented as either true or false')
|
||||||
|
}
|
||||||
|
intval._state.dir = val
|
||||||
|
}
|
||||||
|
/**
|
||||||
|
* Begin a single frame with set variables or defaults
|
||||||
|
*
|
||||||
|
* @param {?boolean} [dir="null"] (optional) Direction of the frame
|
||||||
|
* @param {?integer} [time="null"] (optional) Exposure time, 0 = minimum
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
intval.frame = function (dir = null, time = null) {
|
||||||
|
if (dir === true || (dir === null && intval._state.dir === true) ) {
|
||||||
|
dir = true
|
||||||
|
} else {
|
||||||
|
dir = false
|
||||||
|
}
|
||||||
|
|
||||||
|
if (time === null && intval._state.time !== 0) {
|
||||||
|
time = intval._state.time
|
||||||
|
} else {
|
||||||
|
time = 0
|
||||||
|
}
|
||||||
|
|
||||||
|
intval._state.frame.start = +new Date()
|
||||||
|
intval._state.frame.active = true
|
||||||
|
intval._pin.micro.watch(intval._watchMicro)
|
||||||
|
|
||||||
|
log.info('frame', {dir : dir, time : time})
|
||||||
|
|
||||||
|
if (dir) {
|
||||||
|
intval._startFwd()
|
||||||
|
} else {
|
||||||
|
intval._startBwd()
|
||||||
|
}
|
||||||
|
}
|
||||||
|
/**
|
||||||
|
* Start a sequence of frames, using defaults or explicit instructions
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
intval.sequence = function () {
|
||||||
|
log.info('sequence', `Started sequence`)
|
||||||
|
}
|
||||||
|
intval.status = function () {
|
||||||
|
return intval._state
|
||||||
|
}
|
||||||
|
|
||||||
|
module.exports = intval
|
||||||
File diff suppressed because it is too large
Load Diff
|
|
@ -1,3 +1,5 @@
|
||||||
'use strict'
|
'use strict'
|
||||||
|
|
||||||
const intval = require('../lib/intval')
|
const intval = require('../lib/intval')
|
||||||
|
|
||||||
|
intval.init()
|
||||||
Loading…
Reference in New Issue