gw.sleep on battery powered magnet door switch
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@Chakkie Good to hear. Using "-3" makes the interrupt number the same for _Deur and _Post. Using -2 activates both interrupt 0 and 1.
You'r ready for the next project.. -
@AWI Thanks. By the way would you care to explain the interrupt index number? or may be a link for explanation?
@Chakkie In a few words.. The ATMEGA has two external interrupts 0 and 1 which are connected to pins 2 and 3. ("-2" translates the pin number to the interrupt number, which is rather confusing as @mfalkvidd meant)
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We should really get rid of the confusing "- 2" stuff in the examples and start using DigtalPinToInterrupt instead.
I'm annoyed enough to see if I can create a pull request later this week.@mfalkvidd Thanks for the info. Does DigitalPinTolnterrupt works better?
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@Chakkie In a few words.. The ATMEGA has two external interrupts 0 and 1 which are connected to pins 2 and 3. ("-2" translates the pin number to the interrupt number, which is rather confusing as @mfalkvidd meant)
@AWI Thanks this clear thinks up but at the same time also confusing too.
So "-2" activates both 0 and 1 on pin 2 or pin 3 as you mentioned earlier. I always though it represents a pin number.
Raspberry Pi 2
Domoticz
RFXCOM
ZWAVE Aeon stick
Coming soon Arduino mysensors GW -
@AWI Thanks this clear thinks up but at the same time also confusing too.
So "-2" activates both 0 and 1 on pin 2 or pin 3 as you mentioned earlier. I always though it represents a pin number.
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@Chakkie The function
digitalPinToInterrupt(pin)translates the pin number to the attached interrupt like "-2" does but in a reliable and more understandable way. -
I would like to build the same but I am still very confused now. Could you upload some pictures so I can make myself an image of how you wirde things together?
Also I don´t really understand what happens here: gw.sleep(BUTTON_PIN_Deur - 2, CHANGE, BUTTON_PIN_Post - 2, CHANGE, 86400000);
still learning...
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I would like to build the same but I am still very confused now. Could you upload some pictures so I can make myself an image of how you wirde things together?
Also I don´t really understand what happens here: gw.sleep(BUTTON_PIN_Deur - 2, CHANGE, BUTTON_PIN_Post - 2, CHANGE, 86400000);
@siod If you are using a "standard" Atmega328 (pro-mini, etc.) don't make it hard for yourself. This processor has two external interrupts (0 & 1) connected to pins 2 & 3. Taking your line of code
gw.sleep(BUTTON_PIN_Deur - 2, CHANGE, BUTTON_PIN_Post - 2, CHANGE, 86400000);the arguments are respectively:- Use interrupt "0" (connected to pin 2 is BUTTON_PIN_Deur)
- Have is fired on change (i.e Rising and Falling)
- Use interrupt "1" (connected to pin 3 is BUTTON_PIN_Post)
- Have is fired on change (i.e Rising and Falling)
- Wake after every 86400000 ms (24 hrs) if no interrupt fired. To be safe you should use 86400000UL (the UL indicating that it is an Unsigned long type)
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@siod If you are using a "standard" Atmega328 (pro-mini, etc.) don't make it hard for yourself. This processor has two external interrupts (0 & 1) connected to pins 2 & 3. Taking your line of code
gw.sleep(BUTTON_PIN_Deur - 2, CHANGE, BUTTON_PIN_Post - 2, CHANGE, 86400000);the arguments are respectively:- Use interrupt "0" (connected to pin 2 is BUTTON_PIN_Deur)
- Have is fired on change (i.e Rising and Falling)
- Use interrupt "1" (connected to pin 3 is BUTTON_PIN_Post)
- Have is fired on change (i.e Rising and Falling)
- Wake after every 86400000 ms (24 hrs) if no interrupt fired. To be safe you should use 86400000UL (the UL indicating that it is an Unsigned long type)
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@AWI
Ok thx for explanation, but that means he is using 2 reed switches, right (interrupt at pin2 and int pin3)?@siod I guess so. But don't ask me why. One should be sufficient to detect if the door is open :smile:
In addition (and for what it is worth). If you use a real low power circuit you can save around a factor 3 on battery lifetime when you get rid of the timed wakeup. The arduino sleeps a lot better when it doesn't have to look at the alarm clock every few ms :zzz:
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@siod I guess so. But don't ask me why. One should be sufficient to detect if the door is open :smile:
In addition (and for what it is worth). If you use a real low power circuit you can save around a factor 3 on battery lifetime when you get rid of the timed wakeup. The arduino sleeps a lot better when it doesn't have to look at the alarm clock every few ms :zzz:
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@AWI
yes, makes sense, but how should you do this wihout the wakeup ? I guess this is just the disadvantage one must accept...@siod The wakeup function can be disabled by setting the timer values to 0 (or omitting it). There is no purpose in the sketch above for what I can see. If you want to have a kind of "hey I am still alive"/heartbeat feature you need to do a little more (e.g. sending battery level)
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@siod The wakeup function can be disabled by setting the timer values to 0 (or omitting it). There is no purpose in the sketch above for what I can see. If you want to have a kind of "hey I am still alive"/heartbeat feature you need to do a little more (e.g. sending battery level)
@AWI I was going to ask about that.. I dont see any reason to wake up every 24 hours just to go back to sleep again.. I assume the radio doesn't have any reason to send a keepalive or anything? So, you can omit that number, and it will sleep until interrupted? That's cool..
-Steve
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@AWI I was going to ask about that.. I dont see any reason to wake up every 24 hours just to go back to sleep again.. I assume the radio doesn't have any reason to send a keepalive or anything? So, you can omit that number, and it will sleep until interrupted? That's cool..
-Steve
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@siod I guess so. But don't ask me why. One should be sufficient to detect if the door is open :smile:
In addition (and for what it is worth). If you use a real low power circuit you can save around a factor 3 on battery lifetime when you get rid of the timed wakeup. The arduino sleeps a lot better when it doesn't have to look at the alarm clock every few ms :zzz:
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well, as you can see, if you don´t know the libraries exactly you accept things as they are or as they seem to be. I wasn´t aware that you can just set the wakeup function to 0. So this said I would like to thank you @AWI for your patience and your willingness of explaining also the most obvious things! :thumbsup:
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The sketch works with both reeds switches (2 windows) but how to integreate it with DS18B20 temp sensor? I also power it with battery, so I would like to check the temp eg every 5min and if it is changed then send the new value to the controler. How to wake up arduino only if any window is opened or temp is changed (after 5 min)
Thanks
treb0r -
The sketch works with both reeds switches (2 windows) but how to integreate it with DS18B20 temp sensor? I also power it with battery, so I would like to check the temp eg every 5min and if it is changed then send the new value to the controler. How to wake up arduino only if any window is opened or temp is changed (after 5 min)
Thanks
treb0r@treb0r You can either wake up on the interrupt or on a time period:
bool sleep(int interrupt, int mode, unsigned long ms=0);
interrupt - Interrupt that should trigger the wakeup.
mode - RISING, FALLING, CHANGE
ms - Number of milliseconds to sleep (or 0 to sleep forever).The sleep method returns true if wake up was triggered by pin change and false means timer woke it up.
