Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.

Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).

Sensebender and attachInterrupt

alexsh1 9 Nov 2015, 00:54 last edited by

Anyone knows which pins (3?) can I use with attachInterrupt on the sensebender please?

Thanks
Alex
Reply Quote 0
1 Reply Last reply
Loading More Posts
4
Posts

2.4k
Views
Reply

Reply as topic
Log in to reply
korttoma Hero Member 9 Nov 2015, 05:32 last edited by

http://www.mysensors.org/hardware/micro
Reply Quote 0
1 Reply Last reply
mfalkvidd Mod 9 Nov 2015, 19:27 last edited by

@korttoma said:

http://www.mysensors.org/hardware/micro

This links mentions that D3-D7 are exposed. Looking at this image (from here) you can see that D3 (3 in purple) has interrupt support.
Reply Quote 0
1 Reply Last reply
alexsh1 10 Nov 2015, 04:41 last edited by alexsh1 10 Nov 2015, 04:41

So it is the same as Nano (2 and 3 only) - many thanks!!!
Reply Quote 0
1 Reply Last reply

4
Posts

2.4k
Views

1 out of 4

Suggested Topics

Over the air updates
General Discussion • 23 Mar 2014, 21:38 • ToSa 1 Mar 2015, 11:21

87

1
Votes

87
Posts

50.4k
Views

1 Mar 2015, 11:21

I would really like to get OTA working here as it's freezing outside and I have to go there to update the software in the greenhouse control system. So please, can we have a 'how to' step-by-step guide to OTA? Please? S.
Sensors and more
Hardware • 19 Jun 2023, 00:41 • Robert Leverett 19 Jun 2023, 00:41

1

0
Votes

1
Posts

16
Views

No one has replied
Best VOC sensor for detecting a wide range of VOC's?
Hardware • 26 Oct 2023, 23:59 • NeverDie 18 Nov 2023, 01:41

3

1
Votes

3
Posts

36
Views

18 Nov 2023, 01:41

@eiten I haven't yet made any progress on finding a good VOC sensor, but along the way I did find out something interesting regarding CO2: namely, if you sleep with your bedroom door closed at night, then the odds are good that the CO2 levels rise to surprisingly high and unhealthy levels. The better CO2 sensors are factory calibrated and never again need recalibration for the life of the sensor (usually around 10 years or so), because they are used in HVAC systems to control fresh air intake to guarantee indoor air quality. As a for instance, here is one such CO2 sensor: https://www.digikey.com/en/products/detail/senseair/006-0-0008/15790694 At around $50 for just the sensor element itself, it's not exactly cheap, but then again, I'd say it's worth it, because who wants to be burdened by remembering to calibrate their CO2 sensors? Ideally, I'd like to find a sensitive VOC sensor that also will never require calibration. Nearly all, and maybe all, of the off-the-shelf IAQ montoring stuff that you might buy for, say, $300 or less seems to require periodic calibration. For that reason, this might be one of those occasions where build is rather than buy.
Newbie questions
Hardware • 14 Feb 2025, 20:03 • magwas 14 Feb 2025, 20:03

1

0
Votes

1
Posts

4
Views

No one has replied
Does MySensors require Arduino Timer 2?
Hardware • mysensors interrupt nano interrupts esp • 6 Jan 2024, 19:39 • OldSurferDude 11 Jan 2024, 04:39

2

0
Votes

2
Posts

22
Views

11 Jan 2024, 04:39

I have success! (oops, that's suppose to be Timer1) I only sample for 1/60 of a second. What I did was to back up all the timer registered I used and then resorted them after I was done sampling. (As opposed to initializing the registers in setup and then starting the timer when needed.) Now I have a Nano sampling the data and sending it to a MySensors Gateway on an RPi3B+ which then sends it to an MQTT broker runing on an old laptop. Also running on the laptop is Home Assistant running inside of VirtualBox. If MySensors does use Timer1, it appears that restoring the registers allows it to be shared. //------------------------------------------------------ISR ISR(TIMER1_OVF_vect){ // interrupt service routine for overflow TCNT1 = TimerPreloadValue; // must be first line! starts the timer counting again digitalWrite(TRIGGER_START_SAMPLE_PIN,HIGH); samplesVolts[--sample]=analogRead(VOLTS_IN_PIN); // decrement before capturing samplesCurrent[sample]=analogRead(CURRENT_IN_PIN); digitalWrite(TRIGGER_START_SAMPLE_PIN,LOW); if (!sample){ // count down to zero digitalWrite(TRIGGER_START_SAMPLE_PERIOD_PIN,LOW); // indicate that sampling is complete samplingEnd = micros(); TCCR1B &= 248; // turns off timer } } //------------------------------------------------------sampleOneCycle void sampleOneCycle(){ // back up timer registers uint8_t TCNT1_b = TCNT1; uint8_t TCCR1B_b = TCCR1B; uint8_t TCCR1A_b = TCCR1A; uint8_t TIMSK1_b = TIMSK1; // configure timer which starts the sampling noInterrupts(); // disable all interrupts TCCR1A = 0; TCCR1B = 0; TCNT1 = TimerPreloadValue; // preload timer //TCCR1B |= (1 << CS10)|(1 << CS12); // 1024 prescaler TCCR1B &= 248; // turns off timer? TIMSK1 |= (1 << TOIE1); // enable timer overflow interrupt ISR // demark sampling sample = NUMBER_OF_SAMPLES; // count down to zero digitalWrite(TRIGGER_START_SAMPLE_PERIOD_PIN,HIGH); samplingStart = micros(); TCNT1 = 65535; // first trigger right away! TCCR1B |= 1; // turns on timer interrupts(); // enable all interrupts // wait for sampling to be complete while(digitalRead(TRIGGER_START_SAMPLE_PERIOD_PIN)){}; samplingEnd = micros(); // restore timer registers TCNT1 = TCNT1_b; TCCR1B = TCCR1B_b; TCCR1A = TCCR1A_b; TIMSK1 = TIMSK1_b; }
Best time of year to buy higher quality small project solar panels?
Hardware • 10 Jun 2021, 19:19 • NeverDie 30 Aug 2024, 14:01

5

1
Votes

5
Posts

71
Views

30 Aug 2024, 14:01

It probably has to do with fewer people buying them once summer ends, so companies might lower prices to clear out stock before winter.

Sensebender and attachInterrupt

Suggested Topics

Over the air updates
General Discussion • 23 Mar 2014, 21:38 • ToSa 1 Mar 2015, 11:21

Sensors and more
Hardware • 19 Jun 2023, 00:41 • Robert Leverett 19 Jun 2023, 00:41

Best VOC sensor for detecting a wide range of VOC's?
Hardware • 26 Oct 2023, 23:59 • NeverDie 18 Nov 2023, 01:41

Newbie questions
Hardware • 14 Feb 2025, 20:03 • magwas 14 Feb 2025, 20:03

Does MySensors require Arduino Timer 2?
Hardware • mysensors interrupt nano interrupts esp • 6 Jan 2024, 19:39 • OldSurferDude 11 Jan 2024, 04:39

Best time of year to buy higher quality small project solar panels?
Hardware • 10 Jun 2021, 19:19 • NeverDie 30 Aug 2024, 14:01

3
Online

11.5k
Users

11.1k
Topics

112.8k
Posts

Sensebender and attachInterrupt

Suggested Topics

Over the air updates General Discussion • 23 Mar 2014, 21:38 • ToSa 1 Mar 2015, 11:21

Sensors and more Hardware • 19 Jun 2023, 00:41 • Robert Leverett 19 Jun 2023, 00:41

Best VOC sensor for detecting a wide range of VOC's? Hardware • 26 Oct 2023, 23:59 • NeverDie 18 Nov 2023, 01:41

Newbie questions Hardware • 14 Feb 2025, 20:03 • magwas 14 Feb 2025, 20:03

Does MySensors require Arduino Timer 2? Hardware • mysensors interrupt nano interrupts esp • 6 Jan 2024, 19:39 • OldSurferDude 11 Jan 2024, 04:39

Best time of year to buy higher quality small project solar panels? Hardware • 10 Jun 2021, 19:19 • NeverDie 30 Aug 2024, 14:01

3Online

11.5kUsers

11.1kTopics

112.8kPosts

Over the air updates
General Discussion • 23 Mar 2014, 21:38 • ToSa 1 Mar 2015, 11:21

Sensors and more
Hardware • 19 Jun 2023, 00:41 • Robert Leverett 19 Jun 2023, 00:41

Best VOC sensor for detecting a wide range of VOC's?
Hardware • 26 Oct 2023, 23:59 • NeverDie 18 Nov 2023, 01:41

Newbie questions
Hardware • 14 Feb 2025, 20:03 • magwas 14 Feb 2025, 20:03

Does MySensors require Arduino Timer 2?
Hardware • mysensors interrupt nano interrupts esp • 6 Jan 2024, 19:39 • OldSurferDude 11 Jan 2024, 04:39

Best time of year to buy higher quality small project solar panels?
Hardware • 10 Jun 2021, 19:19 • NeverDie 30 Aug 2024, 14:01

3
Online

11.5k
Users

11.1k
Topics

112.8k
Posts