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RF24_CHANNEL

shabba 6 Mar 2016, 08:52 last edited by

Howdy,
was just wondering why the default channel is 76 and not something higher like maybe 108? This would make
sure the channel is above most (all?) WiFi channels.
Thanks!
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Rasenheizung 7 Mar 2016, 07:14 last edited by

In some countries there are limitations That may be a reason. I tried to document it a little bit in the dev branch: https://github.com/mysensors/Arduino/blob/development/libraries/MySensors/MyConfig.h
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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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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)
Which device I have to use to connect with accelerometer before connecting to my pc?
General Discussion • 24 Jan 2023, 17:16 • Yada Kijsathan 25 days ago

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When connecting an accelerometer to your PC, consider its communication protocol (I2C or SPI) and the appropriate interface device, like a microcontroller (e.g., Arduino). You may also need additional hardware for voltage adjustment or signal conditioning, depending on the sensor’s specifications.
Why is the output of ACS712 current measurement module unchanged?
General Discussion • mysensors • 19 Jul 2021, 09:09 • Tessie T 12 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);
Email notifications received twice
General Discussion • 6 Feb 2023, 16:15 • Jodaille 15 days ago

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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
Meet in Malmö, Summer 2016?
General Discussion • 1 Feb 2016, 15:34 • bjacobse 4 Mar 2025, 00:29

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

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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.

RF24_CHANNEL

Suggested Topics

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

Which device I have to use to connect with accelerometer before connecting to my pc?
General Discussion • 24 Jan 2023, 17:16 • Yada Kijsathan 25 days ago

Why is the output of ACS712 current measurement module unchanged?
General Discussion • mysensors • 19 Jul 2021, 09:09 • Tessie T 12 days ago

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

Meet in Malmö, Summer 2016?
General Discussion • 1 Feb 2016, 15:34 • bjacobse 4 Mar 2025, 00:29

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

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RF24_CHANNEL

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

Which device I have to use to connect with accelerometer before connecting to my pc? General Discussion • 24 Jan 2023, 17:16 • Yada Kijsathan 25 days ago

Why is the output of ACS712 current measurement module unchanged? General Discussion • mysensors • 19 Jul 2021, 09:09 • Tessie T 12 days ago

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

Meet in Malmö, Summer 2016? General Discussion • 1 Feb 2016, 15:34 • bjacobse 4 Mar 2025, 00:29

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

8Online

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

Which device I have to use to connect with accelerometer before connecting to my pc?
General Discussion • 24 Jan 2023, 17:16 • Yada Kijsathan 25 days ago

Why is the output of ACS712 current measurement module unchanged?
General Discussion • mysensors • 19 Jul 2021, 09:09 • Tessie T 12 days ago

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

Meet in Malmö, Summer 2016?
General Discussion • 1 Feb 2016, 15:34 • bjacobse 4 Mar 2025, 00:29

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

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