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Lowpower lib

moskovskiy82 10 Jan 2016, 07:08 last edited by

Wonder if this is already implemented in the code. I see that the library is in the github

Example in the sketch - gw.sleep(SLEEP_TIME); - is this a standard arduino sleep function?
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mfalkvidd Mod 10 Jan 2016, 09:26 last edited by

I don't think Arduino has a standard sleep function. Which function do you mean?

The MySensors sleep function does several things, including powering down the radio (if a radion is used). It is quite power efficient.
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Update RF24 library to latest version
Bug Reports • 23 Mar 2014, 23:37 • andriej 24 Mar 2014, 22:52

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@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)
Why is the output of ACS712 current measurement module unchanged?
General Discussion • mysensors • 19 Jul 2021, 09:09 • Tessie T 2 days ago

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@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);
Code Garage to the rescue.
General Discussion • 11 Jan 2025, 11:25 • skywatch 23 Feb 2025, 14:57

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23 Feb 2025, 14:57

I hope the project won't be buried due to the fact that the protocol is the basis of nippy devices (https://nippysmart.com/) I also hope that the development of mysensors won't be directed in 2 directions - one commercial only for nippy - the other for all the rest, which could result in the two versions diverging so much that they will be incompatible and the second one will simply be buried.
No merge into master in the last 5 years, should we use development?
General Discussion • 23 Sept 2024, 17:48 • kiesel 6 days ago

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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...
ESP-NOW
General Discussion • 220v i recently noticed that expres between esp8266 and es[p which allows direct conection if has released esp-now • 22 Apr 2018, 05:58 • NeverDie 17 Feb 2025, 22:24

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Old topic, I know. Did anything ever come of this? I'm also thinking it would be easy & cheap to get the espnow working as a transport layer. I found this: https://www.mysensors.org/apidocs-beta/classESPNOW.html But it goes above my head and abilities when it comes to code.
Meet in Malmö, Summer 2016?
General Discussion • 1 Feb 2016, 15:34 • bjacobse 28 days ago

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Maybe next summer the 10 years after party? I would still like to meet all of you guys in real person

Lowpower lib

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

Why is the output of ACS712 current measurement module unchanged?
General Discussion • mysensors • 19 Jul 2021, 09:09 • Tessie T 2 days ago

Code Garage to the rescue.
General Discussion • 11 Jan 2025, 11:25 • skywatch 23 Feb 2025, 14:57

No merge into master in the last 5 years, should we use development?
General Discussion • 23 Sept 2024, 17:48 • kiesel 6 days ago

ESP-NOW
General Discussion • 220v i recently noticed that expres between esp8266 and es[p which allows direct conection if has released esp-now • 22 Apr 2018, 05:58 • NeverDie 17 Feb 2025, 22:24

Meet in Malmö, Summer 2016?
General Discussion • 1 Feb 2016, 15:34 • bjacobse 28 days ago

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Lowpower lib

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

Why is the output of ACS712 current measurement module unchanged? General Discussion • mysensors • 19 Jul 2021, 09:09 • Tessie T 2 days ago

Code Garage to the rescue. General Discussion • 11 Jan 2025, 11:25 • skywatch 23 Feb 2025, 14:57

No merge into master in the last 5 years, should we use development? General Discussion • 23 Sept 2024, 17:48 • kiesel 6 days ago

ESP-NOW General Discussion • 220v i recently noticed that expres between esp8266 and es[p which allows direct conection if has released esp-now • 22 Apr 2018, 05:58 • NeverDie 17 Feb 2025, 22:24

Meet in Malmö, Summer 2016? General Discussion • 1 Feb 2016, 15:34 • bjacobse 28 days ago

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

Why is the output of ACS712 current measurement module unchanged?
General Discussion • mysensors • 19 Jul 2021, 09:09 • Tessie T 2 days ago

Code Garage to the rescue.
General Discussion • 11 Jan 2025, 11:25 • skywatch 23 Feb 2025, 14:57

No merge into master in the last 5 years, should we use development?
General Discussion • 23 Sept 2024, 17:48 • kiesel 6 days ago

ESP-NOW
General Discussion • 220v i recently noticed that expres between esp8266 and es[p which allows direct conection if has released esp-now • 22 Apr 2018, 05:58 • NeverDie 17 Feb 2025, 22:24

Meet in Malmö, Summer 2016?
General Discussion • 1 Feb 2016, 15:34 • bjacobse 28 days ago

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