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).

Low Power?

strangeoptics 22 May 2017, 18:20 last edited by

Hi,

I saw that the lowoower.h from RocketScream is somehow included in mysensors.
How can I power down with mysensors to low power?
Couldn't find an example.
Reply Quote 0
1 Reply Last reply
Loading More Posts
4
Posts

1.2k
Views
Reply

Reply as topic
Log in to reply
gohan Mod 22 May 2017, 18:22 last edited by

Sleep ()?
Reply Quote 0
1 Reply Last reply
strangeoptics 22 May 2017, 18:26 last edited by

Ok is sleep using internally the lowpower.h?
I am used to use the constants defined in period_t like SLEEP_8S.

Is there a good description how to use the low power state and interrupts?

thx
Reply Quote 0
1 Reply Last reply
LastSamurai Hardware Contributor 22 May 2017, 18:59 last edited by

Yes use sleep() . Take a look at the api.
Reply Quote 2
1 Reply Last reply

4
Posts

1.2k
Views

1 out of 4

Suggested Topics

Update RF24 library to latest version
Bug Reports • 23 Mar 2014, 23:37 • andriej 24 Mar 2014, 22:52

4

0
Votes

4
Posts

2.6k
Views

24 Mar 2014, 22:52

@andriej Hi, I had problem using the main branch mysensors/Raspberry, that because of the bit-field struct (header_s) in Sensor.h They will get packed in different order on the arduino compared to the RPi (at least with my compiler, gcc). In order to fix this I created the 1.4dev branch. It uses full bytes instead of the bit-fields, but you need (of cause) to compile both the sensors (arduino) and the gateway (RPi) using the 1.4dev branch. We need to fix this in the main branch later on (and use the same files as in mysensors/Arduino/libraries/MySensors)
Running out of nodeId's
General Discussion • mysensors • 3 Sept 2024, 07:33 • NielBierman 25 Jan 2025, 17:19

10

3
Votes

10
Posts

65
Views

25 Jan 2025, 17:19

@GLAB You can set the frequencies using the settings in MyConfig.h, which is in the MySensors folder. If you put any of the defines from MyConfig.h into your sketch, they will override the MyConfig.h setting for that sketch only. If you are using the RF24 radio, there are different channels which correspond to a given frequency. The default is channel 76. There is a list of typical channels in MyConfig.h. If you want to change the channel for all the sketches, change it in MyConfig.h. If you want to change it just for the sketch, add a define to the sketch. For example: #define MY_RF24_CHANNEL (84) The problem with changing the channel in a sketch is that the gateway has to be on the same channel to receive from the node. So, normally it makes sense to change in MyConfig.h because you usually want the gateway and all the nodes on the same channel. Other radio's like the RFM69 list the frequency instead of using a channel. They can be overridden in the sketch as well. You can find the defines that are needed in MyConfig.h
Email notifications received twice
General Discussion • 6 Feb 2023, 16:15 • Jodaille 3 days ago

3

1
Votes

3
Posts

38
Views

3 days ago

It looks like duplicate email notifications may be linked to system settings or preferences. Have you noticed if the issue happens after specific actions or changes? Investigating your notification settings might shed some light
Combination of networks
General Discussion • 1 Feb 2025, 17:30 • Sniker 4 Feb 2025, 01:02

4

0
Votes

4
Posts

23
Views

4 Feb 2025, 01:02

Take a look on this article https://www.mysensors.org/build/rs485
Why is the output of ACS712 current measurement module unchanged?
General Discussion • mysensors • 19 Jul 2021, 09:09 • Tessie T about 15 hours ago

4

0
Votes

4
Posts

33
Views

about 15 hours ago

@ZenBlizzard in case you are measuring the output with a multimeter, you will get an averaged level, since AC current waveform should be sinusoidal and overlapped with the Vcc/2->2.56V in your case. To measure the current you need a decently high sampling and some math. #define SENSITIVITY 66 // mV/A const float readings = 5; const float alpha = 2.0 / (2 * readings + 1); for (ifor = 0; ifor < 250; ifor++) { // Voltage voltageSampleRead = analogRead(V) * vccRead / 1023 - vccRead / 2; /* read the sample value including offset value*/ voltageSampleSum = voltageSampleSum + sq(voltageSampleRead); /* accumulate total analog values for each sample readings*/ voltageSampleOffsetSum = voltageSampleOffsetSum + voltageSampleRead; // Current currentSampleRead = analogRead(I) * vccRead / 1023 - vccRead / 2; /* read the sample value including offset value*/ currentSampleSum = currentSampleSum + currentSampleRead * currentSampleRead; /* accumulate total analog values for each sample readings*/ currentSampleOffsetSum = currentSampleOffsetSum + currentSampleRead; wait(1); } voltageMean = voltageSampleSum / ifor; /* calculate average value of all sample readings taken*/ voltageOffset = voltageSampleOffsetSum / ifor; reading = (sqrt(voltageMean) - voltageOffset) * 230.0 / 1.0; // read voltage / reported voltage. voltage = round_to_dp(alpha * reading + (1 - alpha) * voltage,1); Serial.println(voltage); if (voltage < 25) voltage = 0; currentMean = currentSampleSum / ifor; /* calculate average value of all sample readings taken*/ currentOffset = currentSampleOffsetSum / ifor; reading = (sqrt(currentMean) - currentOffset) / SENSITIVITY * 1000 - currentZeroOffset; // subtract no load current. if (reading < 0) reading = 0; current = round_to_dp( alpha * reading + (1 - alpha) * current,2);
No merge into master in the last 5 years, should we use development?
General Discussion • 23 Sept 2024, 17:48 • kiesel 5 days ago

10

0
Votes

10
Posts

49
Views

5 days ago

Well, my network with two handfulls of nodes in three different locations is still live and kicking! I agree that there does not seem to be a lot happening in the community. I'm running 2.4.0- alpha since this gives support for MQTT over TLS. Just managed today to create one more MQTT GW after reading a lot about support for ESP8266. You know, these things you do once per year and have to learn new each time. MySensors is the cheapest way I have found to create small sensor nodes etc. But now slowly running out of my supply of hardware. Well, time will tell...

Low Power?

Suggested Topics

Update RF24 library to latest version
Bug Reports • 23 Mar 2014, 23:37 • andriej 24 Mar 2014, 22:52

Running out of nodeId's
General Discussion • mysensors • 3 Sept 2024, 07:33 • NielBierman 25 Jan 2025, 17:19

Email notifications received twice
General Discussion • 6 Feb 2023, 16:15 • Jodaille 3 days ago

Combination of networks
General Discussion • 1 Feb 2025, 17:30 • Sniker 4 Feb 2025, 01:02

Why is the output of ACS712 current measurement module unchanged?
General Discussion • mysensors • 19 Jul 2021, 09:09 • Tessie T about 15 hours ago

No merge into master in the last 5 years, should we use development?
General Discussion • 23 Sept 2024, 17:48 • kiesel 5 days ago

13
Online

11.5k
Users

11.1k
Topics

112.8k
Posts

Low Power?

Suggested Topics

Update RF24 library to latest version Bug Reports • 23 Mar 2014, 23:37 • andriej 24 Mar 2014, 22:52

Running out of nodeId's General Discussion • mysensors • 3 Sept 2024, 07:33 • NielBierman 25 Jan 2025, 17:19

Email notifications received twice General Discussion • 6 Feb 2023, 16:15 • Jodaille 3 days ago

Combination of networks General Discussion • 1 Feb 2025, 17:30 • Sniker 4 Feb 2025, 01:02

Why is the output of ACS712 current measurement module unchanged? General Discussion • mysensors • 19 Jul 2021, 09:09 • Tessie T about 15 hours ago

No merge into master in the last 5 years, should we use development? General Discussion • 23 Sept 2024, 17:48 • kiesel 5 days ago

13Online

11.5kUsers

11.1kTopics

112.8kPosts

Update RF24 library to latest version
Bug Reports • 23 Mar 2014, 23:37 • andriej 24 Mar 2014, 22:52

Running out of nodeId's
General Discussion • mysensors • 3 Sept 2024, 07:33 • NielBierman 25 Jan 2025, 17:19

Email notifications received twice
General Discussion • 6 Feb 2023, 16:15 • Jodaille 3 days ago

Combination of networks
General Discussion • 1 Feb 2025, 17:30 • Sniker 4 Feb 2025, 01:02

Why is the output of ACS712 current measurement module unchanged?
General Discussion • mysensors • 19 Jul 2021, 09:09 • Tessie T about 15 hours ago

No merge into master in the last 5 years, should we use development?
General Discussion • 23 Sept 2024, 17:48 • kiesel 5 days ago

13
Online

11.5k
Users

11.1k
Topics

112.8k
Posts