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).

Free $5 from PayPal

ddluk 7 Sept 2014, 21:53 last edited by

PayPal is running some nice promo and it's offering free $5 to spent on Ebay (for some sensors parts ;)). Just go to this website:

PayPal promotion

and follow steps. At the end you will need to enter your email address and in next few days you will receive your credits.

It's not a spam or scam, this promotion is organized by PayPal.
Reply Quote 1
1 Reply Last reply

1
Posts

1.0k
Views

1 out of 1

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)
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

23

0
Votes

23
Posts

6.2k
Views

17 Feb 2025, 22:24

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

4

0
Votes

4
Posts

38
Views

a day 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);
Meet in Malmö, Summer 2016?
General Discussion • 1 Feb 2016, 15:34 • bjacobse 27 days ago

95

2
Votes

95
Posts

149.4k
Views

27 days ago

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

9

1
Votes

9
Posts

126
Views

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.
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

Free $5 from PayPal

Suggested Topics

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

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

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

Meet in Malmö, Summer 2016?
General Discussion • 1 Feb 2016, 15:34 • bjacobse 27 days ago

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

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

0
Online

11.5k
Users

11.1k
Topics

112.8k
Posts

Free $5 from PayPal

Suggested Topics

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

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

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

Meet in Malmö, Summer 2016? General Discussion • 1 Feb 2016, 15:34 • bjacobse 27 days ago

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

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

0Online

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

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

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

Meet in Malmö, Summer 2016?
General Discussion • 1 Feb 2016, 15:34 • bjacobse 27 days ago

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

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

0
Online

11.5k
Users

11.1k
Topics

112.8k
Posts