MicroPython Forum (Archive)

Posted: **Sat Dec 17, 2016 12:12 pm**

Hi,

I was able to flash a Sonoff device with MicroPython. This Sonoff should switch a lamp on/off. Everyhing works fine and now I want to implement a back-up function, in case my wlan is not available. The idea is to make use of the push-button on the Sonoff. I was already able to define it as an interrupt to turn directly the lamp on/off. The code is pretty simple:

Code: Select all

pinRelay = machine.Pin(12, machine.Pin.OUT)
pinSchalter = machine.Pin(0, machine.Pin.IN, machine.Pin.PULL_UP)

def umschalten(p):
    pinRelay.value(not pinRelay.value())
    
pinSchalter.irq(trigger=machine.Pin.IRQ_FALLING, handler=umschalten)

Next, I want to give this push-button a further functionality: to reboot the Sonoff:

- push-button pressed less than 2sec. -> just switch the relay
- push-button pressed/hold longer than 2sec -> reboot the Sonoff

For this I changed the callback-function to this:

Code: Select all

def umschalten(p):
    zeitschleife = 0
    time.sleep_ms(500)
    while pinSchalter == 0:
        if zeitschleifer >= 100:
            machine.reset()
        time.sleep_ms(20)
        zeitschleife += 1
    pinRelay.value(not pinRelay.value())

But it is not working. When I press and hold the push-button it never makes the machine.reset(). Always it is switching the relay.
I ASSUME, it is because of the bouncing-beviour of the push-button. Any ideas?

Posted: **Sat Dec 17, 2016 3:36 pm**

Boiled down, should if zeitschleifer >= 100:, not be if zeitschleife >= 100:
My bet.

Posted: **Sat Dec 17, 2016 4:00 pm**

Frida wrote:Boiled down, should if zeitschleifer >= 100:, not be if zeitschleife >= 100:
My bet.

uppp ... yes this is a mistake.
But even after I fixed this, it is still not working.

Updated code:

Code: Select all

def umschalten(p):
    zeitschleife = 0
    time.sleep_ms(500)
    while pinSchalter == 0:
        if zeitschleife >= 100:
            machine.reset()
        time.sleep_ms(20)
        zeitschleife += 1
    pinRelay.value(not pinRelay.value())

Posted: **Sat Dec 17, 2016 5:00 pm**

On my wipy1, I can run this:

Code: Select all

# on wipy1

import micropython
micropython.alloc_emergency_exception_buf(100)

import time
from machine import Pin

#pinRelay = machine.Pin(12, machine.Pin.OUT)
#pinSchalter = machine.Pin(0, machine.Pin.IN, machine.Pin.PULL_UP)
pinRelay=Pin('GP16');pinRelay.value(1);pinRelay.mode(1) #set led off
pinSchalter=Pin('GP17', Pin.IN, Pin.PULL_UP)


def umschalten(p):
    zeitschleife = 0
    time.sleep_ms(500)
    print('her går det godt!')
    while pinSchalter() == 0:
        print('Schalter=0')
        if zeitschleife >= 100:
            #machine.reset()
			print('machine.reset')
        time.sleep_ms(20)
        zeitschleife += 1
    pinRelay.value(not pinRelay.value())

pinSchalter.irq(trigger=machine.Pin.IRQ_FALLING, handler=umschalten)

Posted: **Sat Dec 17, 2016 8:04 pm**

Frida wrote:On my wipy1, I can run this:

Code: Select all

# on wipy1

import micropython
micropython.alloc_emergency_exception_buf(100)

import time
from machine import Pin

#pinRelay = machine.Pin(12, machine.Pin.OUT)
#pinSchalter = machine.Pin(0, machine.Pin.IN, machine.Pin.PULL_UP)
pinRelay=Pin('GP16');pinRelay.value(1);pinRelay.mode(1) #set led off
pinSchalter=Pin('GP17', Pin.IN, Pin.PULL_UP)


def umschalten(p):
    zeitschleife = 0
    time.sleep_ms(500)
    print('her går det godt!')
    while pinSchalter() == 0:
        print('Schalter=0')
        if zeitschleife >= 100:
            #machine.reset()
			print('machine.reset')
        time.sleep_ms(20)
        zeitschleife += 1
    pinRelay.value(not pinRelay.value())

pinSchalter.irq(trigger=machine.Pin.IRQ_FALLING, handler=umschalten)

Looks for me exactly like my code ... or? Is it working on your wipy?
However, if it is exactly like my code, on my Sonoff it's not working.

Posted: **Sat Dec 17, 2016 8:26 pm**

I have changed your pin to pins for wipy1:

Code: Select all

#pinRelay = machine.Pin(12, machine.Pin.OUT)
#pinSchalter = machine.Pin(0, machine.Pin.IN, machine.Pin.PULL_UP)
pinRelay=Pin('GP16');pinRelay.value(1);pinRelay.mode(1) #set led off
pinSchalter=Pin('GP17', Pin.IN, Pin.PULL_UP)

changed:

Code: Select all

    while pinSchalter == 0:

to:

Code: Select all

     while pinSchalter() == 0:

inserted:

Code: Select all

    print('her går det godt!')

changed:

Code: Select all

         #machine.reset()
         print('machine.reset')

so I could see what happend.

Yes it runs on my wipy1.

If it still dosn't work, let me see the whole programm, so we can get it to work.

Posted: **Sat Dec 17, 2016 9:40 pm**

Frida wrote: changed:
Code: Select all
    while pinSchalter == 0:
to:
Code: Select all
     while pinSchalter() == 0:

ahh ... how could I oversee that. Sure. Now, I changed it to >>while pinSchalter.value() == 0:<< and it basically work.
(I am only still getting the Message "NameError:" when I press it less than 2Sec. But perhaps it is related with another piece of the code.
Let me sleep over it. Perhaps this is also just because of a stupid typo which I currently don't see with my sleepy eyes.

MicroPython Forum (Archive)

Sonoff: IRQ on push-button

Sonoff: IRQ on push-button

Re: Sonoff: IRQ on push-button

Re: Sonoff: IRQ on push-button

Re: Sonoff: IRQ on push-button

Re: Sonoff: IRQ on push-button

Re: Sonoff: IRQ on push-button

Re: Sonoff: IRQ on push-button