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jsiddall Plugin Developer 20 Oct 2016, 13:33 last edited by

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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)
Why is the output of ACS712 current measurement module unchanged?
General Discussion • mysensors • 19 Jul 2021, 09:09 • Tessie T 27 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 30 days ago

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30 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
ESP32 with LoRa
General Discussion • 31 Jan 2023, 11:06 • dhanushmh 23 days ago

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23 days ago

Hey! If you're using ESP32 with LoRa (RFM95) and a Raspberry Pi gateway, here are some quick tips: Hardware: Heltec ESP32 + LoRa boards work great with MySensors. Power: ESP32 (~600mA) + LoRa (~120mA) can drain batteries fast—Arduino might be better. Software: Use Arduino IDE for ESP32 (try EnergyMeterPulseSensor), and set up an MQTT gateway on the RPi. Home Assistant works well for data visualization. Real-World Tips: MySensors + LoRa is great for farm/weather monitoring—checking similar projects can help.
Code Garage to the rescue.
General Discussion • 11 Jan 2025, 11:25 • skywatch 15 days ago

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15 days ago

Hi, I'm glad CodeGarage is taking over! Please are there any updates since January what's happening? The GitHub repo hasn't gotten commits for over a year. Thanks!
Which device I have to use to connect with accelerometer before connecting to my pc?
General Discussion • 24 Jan 2023, 17:16 • Yada Kijsathan 16 Mar 2025, 20:17

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16 Mar 2025, 20:17

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.

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Suggested Topics

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 27 days ago

Email notifications received twice
General Discussion • 6 Feb 2023, 16:15 • Jodaille 30 days ago

ESP32 with LoRa
General Discussion • 31 Jan 2023, 11:06 • dhanushmh 23 days ago

Code Garage to the rescue.
General Discussion • 11 Jan 2025, 11:25 • skywatch 15 days ago

Which device I have to use to connect with accelerometer before connecting to my pc?
General Discussion • 24 Jan 2023, 17:16 • Yada Kijsathan 16 Mar 2025, 20:17

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Suggested Topics

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 27 days ago

Email notifications received twice General Discussion • 6 Feb 2023, 16:15 • Jodaille 30 days ago

ESP32 with LoRa General Discussion • 31 Jan 2023, 11:06 • dhanushmh 23 days ago

Code Garage to the rescue. General Discussion • 11 Jan 2025, 11:25 • skywatch 15 days ago

Which device I have to use to connect with accelerometer before connecting to my pc? General Discussion • 24 Jan 2023, 17:16 • Yada Kijsathan 16 Mar 2025, 20:17

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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 27 days ago

Email notifications received twice
General Discussion • 6 Feb 2023, 16:15 • Jodaille 30 days ago

ESP32 with LoRa
General Discussion • 31 Jan 2023, 11:06 • dhanushmh 23 days ago

Code Garage to the rescue.
General Discussion • 11 Jan 2025, 11:25 • skywatch 15 days ago

Which device I have to use to connect with accelerometer before connecting to my pc?
General Discussion • 24 Jan 2023, 17:16 • Yada Kijsathan 16 Mar 2025, 20:17

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