func (b *Button) Poll() {
go func() {
lastState, _ := hwio.DigitalRead(b.pin)
for {
currentState, _ := hwio.DigitalRead(b.pin)
if currentState != lastState {
lastState = currentState
if currentState == 1 {
if b.Rising != nil {
b.Rising()
}
} else {
if b.Falling != nil {
b.Falling()
}
}
if b.Change != nil {
b.Change(currentState)
}
}
hwio.Delay(50)
}
}()
}
func readTracker(name string, trackerPin hwio.Pin) {
oldValue := 0 //value readed from tracker, initially set to 0, because the tracker was innactive
timeAction := time.Now() // time of the action detected
// loop
for theAcq.getState() != stateSTOPPED {
// Read the tracker value
value, e := hwio.DigitalRead(trackerPin)
if e != nil {
panic(e)
}
//timeActionOld=timeAction //store the last time
timeAction = time.Now() // time at this point
// Did value change?
if (value == 1) && (value != oldValue) {
if theAcq.getState() != statePAUSED {
dataString := fmt.Sprintf("[%s], %v, %d\n",
name, timeAction.Sub(theAcq.getTime0()), value)
log.Println(dataString)
theAcq.outputFile.WriteString(dataString)
}
// Write the value to the led indicating somewhat is happened
if value == 1 {
hwio.DigitalWrite(theOshi.actionLed, hwio.HIGH)
} else {
hwio.DigitalWrite(theOshi.actionLed, hwio.LOW)
}
}
oldValue = value
}
}
func readButton(name string, buttonPin hwio.Pin, ledPin hwio.Pin) {
//value readed from button, initially set to 0, because the button will not pressed
oldValue := 0
t1 := time.Now()
// loop
for {
// Read the button value
value, e := hwio.DigitalRead(buttonPin)
if e != nil {
panic(e)
}
t1 = time.Now() // time at this point
// Did value change?
if value != oldValue {
fmt.Printf("[%s] %v (%d)\n", name, t1.Sub(t0), value)
oldValue = value
// Write the value to the led.
if value == 1 {
hwio.DigitalWrite(ledPin, hwio.HIGH)
} else {
hwio.DigitalWrite(ledPin, hwio.LOW)
}
}
}
}
func DigitalRead(p hwio.Pin) int {
v, err := hwio.DigitalRead(p)
if err != nil {
panic(err)
}
return v
}
func waitTillButtonPushed(buttonPin hwio.Pin) int {
// loop
for {
// Read the tracker value
value, e := hwio.DigitalRead(buttonPin)
if e != nil {
panic(e)
}
// Was the button pressed, value = 1?
if value == 1 {
return value
}
}
}
func main() {
//value readed from button, initially set to 0, because the button will not pressed
oldValue := 0
// Set up 'button' as an input
button, e := hwio.GetPinWithMode(buttonPin, hwio.INPUT)
if e != nil {
panic(e)
}
// Set up 'led' as an output
led, e := hwio.GetPinWithMode(ledPin, hwio.OUTPUT)
if e != nil {
panic(e)
}
fmt.Printf("Beginning.....\n")
t0 := time.Now() // time 0
for {
// Read the button value
value, e := hwio.DigitalRead(button)
t1 := time.Now() // time at this point
if e != nil {
panic(e)
}
// Did value change?
if value != oldValue {
fmt.Printf("[%v] %d\n", t1.Sub(t0), value)
oldValue = value
// Write the value to the led.
if value == 1 {
hwio.DigitalWrite(led, hwio.HIGH)
} else {
hwio.DigitalWrite(led, hwio.LOW)
}
}
}
}
func readTracker(name string, trackerPin hwio.Pin) {
//value readed from tracker, initially set to 0, because the tracker was innactive
oldValue := 0
timeAction := time.Now() // time of the action detected
timeActionOld := time.Now() // time of the action-1 detected
//fmt.Printf("[%s] File: %s\n",name,outputFile)
// loop
for {
// Read the tracker value
value, e := hwio.DigitalRead(trackerPin)
if e != nil {
panic(e)
}
timeActionOld = timeAction //store the last time
timeAction = time.Now() // time at this point
// Did value change?
if value != oldValue {
dataString := fmt.Sprintf("[%s] %v (%v) -> %d\n",
name, timeAction.Sub(t0), timeAction.Sub(timeActionOld), value)
//fmt.Printf("[%s] %v (%v) -> %d\n",
// name,timeAction.Sub(t0),timeAction.Sub(timeActionOld),value)
fmt.Printf(dataString)
outputFile.WriteString(dataString)
oldValue = value
// Write the value to the led indicating somewhat is happened
if value == 1 {
hwio.DigitalWrite(actionLed, hwio.HIGH)
} else {
hwio.DigitalWrite(actionLed, hwio.LOW)
}
}
}
}
// Run is the block's main loop. Here we listen on the different channels we set up.
func (b *DigitalPin) Run() {
var pin hwio.Pin
var pinStr string
var err error
for {
select {
case ruleI := <-b.inrule:
if pinStr != "" {
b.Log("closing pin " + pinStr)
err = hwio.ClosePin(pin)
if err != nil {
b.Error(err)
}
}
pinStr, err = util.ParseString(ruleI, "Pin")
if err != nil {
b.Error(err)
continue
}
pin, err = hwio.GetPin(pinStr)
if err != nil {
pinStr = ""
pin = 0
b.Error(err)
continue
}
err = hwio.PinMode(pin, hwio.INPUT)
if err != nil {
b.Error(err)
continue
}
case <-b.quit:
// quit the block
err = hwio.ClosePin(pin)
b.Error(err)
return
case c := <-b.queryrule:
// deal with a query request
c <- map[string]interface{}{
"Pin": pinStr,
}
case <-b.inpoll:
if pin == 0 {
continue
}
v, err := hwio.DigitalRead(pin)
if err != nil {
b.Log(v)
b.Error(err)
continue
}
outValue := float64(v)
out := map[string]interface{}{
"value": outValue,
"pin": pinStr,
}
b.out <- out
}
}
}
