@Redguy Did you succeed talking modbus and sending to mysensors network ? I have a small mysensors over rs485 network and would like to add this device : https://fr.aliexpress.com/item/4000478781091.html?spm=a2g0o.cart.0.0.1d513c00qfPO3K&mp=1 it would be convinient to use the same cables, ideally the gateway could make the translation directly.

Hello friend, any progress on this ? I plan to buy a power meter and it would be awesome to read it over my existing rs485 mysensors network ? can mySensors and modBus protocol coexist on the same physical line ?

@omarrxa sure, now you're using identical radios

@gregvp Hi gregvp, thanks. The wire moves both axially and radially. It is being reeled and unreeled continuously. About 100 inches per second axially, much slower radially. It moves about 30 feet, close to its full length. It is a stranded wire, about 1mm thick. It's in a very accessible place. No such big environmental considerations. It doesn't connect anything, everything can be altered except the wire itself. It is not possible to inject a signal because I can't cut into its protective coating, just to avoid the coating stripping off during such a long test. It doesn't carry any signal, it's just part of the physical device. It has an aluminum testing apparatus that we can alter in any way. We just need to know when the wire breaks, if it ever does. Thanks for your interest in this problem. I'm hoping this helps give people any ideas that might be feasible. I think we might try a laser but I'm concerned the receiving window will be too small. We'll see though

@Nca78 Thank you so much for your time, i didn't use the stepper motor yet and so i didn't pay attention to what came with it, thank you very much.

@electrik said in Wake-up by interrupt doesn't work: If the delay is not of importance to you, you can also have the sensor request its state from the controller each time it wakes up. No special modifications are needed than. It's true. But the controller must switch its relay state without having ack received from the node. That's not what MySensors plugin for Vera does. But you gave me an idea to implement an additional relay buildin into the gateway which will work as a proxy for my real actuator. Thank you!

@projectMarvin here's the next gen project that is actually a HW sensorTag but also mainly an nRF52840 firmware compatible with openthread and my previous gen simple mesh framework. The openthread is quite simple as you no longer have to worry about app layer when using directly json from the uC https://www.homesmartmesh.com/docs/microcontrollers/nrf52/thread_sensortag/

I have built 2 nodes with E01-ML01S (the cheapest module) and I have pretty good experience with them so far. I didn't have to use any capacitors to improve range, they are directly connected to some medium-quality Arduino Nano GND/3.3V. One of them is a lighting controller node, ~3 meters from the PA/LNA gateway (+ a 30cm wall) on the same level as the gateway. The other one is a repeter node and is ~10 meters from the gateway (+ a 20cm wall, same level as the gateway). In this case, radio orientation was important to get a good signal. One of the test modules could communicate with the gateway through 2 walls and a the ceiling (steel-bar reinforced). All-in-all, I am satisfied with the signal stability of these modules. It is a bit finicky to solder the wires to the module because the pads are very small. I always put some solder on the pads first and reheat when I attach the wires.

I did more investigation played around with sleep outside of mysensors and found a bit of code in a proximity sensor example: // Reset flag and clear APDS-9960 interrupt (IMPORTANT!) isr_flag = 0; if ( !apds.clearProximityInt() ) { Serial.println("Error clearing interrupt"); } I then needed to play around with delays to allow the sensor to catchup.. void loop() { delay(1000); Recoding back to MySensors if ( !apds.clearProximityInt() ) { Serial.println("Error clearing interrupt"); } wakeupReason = sleep(digitalPinToInterrupt(INT_PIN), FALLING, sleepTime); setting up the interrupt pin with a pullup forced the FALLING when pin dragged down by the sensor. void setup() { pinMode(INT_PIN, INPUT_PULLUP); All this is on caveat it makes it through some more testing.

@mfalkvidd Good point. I don't know too much about the library, but if that's all it takes, I'll definitely try it.

@skywatch said in Solar/battery powering: @zboblamont said in Solar/battery powering: @rejoe2 Anti-freeze. But then the hot water would not be suitable to shower/cleaning/pool etc and you then have to go to a heat exchange tank, somewhere to put it and insulate it and pipe to it. I am sure is can be done, but the fact that it is not 'standard' hints at it being costlly or impractical or both. In fact, imo it's highly recommended to use a seperate circle for the "transport medium" (typically: antifreeze liquid)! Otherwise you will at some point in time get problems with corrosion or deposited dirt particles if media would be continuously renewed. Dependent on the needed amounts of (potable) warm water, it might even be a good idea to have three circles (medium for panel, heating water, potable water). But tanks, heat exchangers and so on (including steering electronics :grin:) are (relatively inexpensive) standard components - at least here in Germany. So imo technical complexity isn't a thing to worry about too much. But as already mentionned: I really doubt, if you will have a financial benefit out of such an installation, if you have to built it from scratch nowerdays. Additionally: have a close look, how big the need for hot water really is - in most cases, e.g. 5m² panel size for a family of 4 persons should be enough for hot water supply in middle Europe (+300l tank volume). As soon as heating is involved, you'll need much higher tank volumes - with no benefit in summer, but not sufficient capacity on roof top or tank volume in winter times? @rejoe2 Agreed! - But it's not OT as you could mysensors the hell out of such an installation! Indeed, buiding one's own MySensors-based controller for such a hybrid heating ecosystem would be right on topic - but not in this thread here... Fyi: One of my very first things to get done with MySensors had been around my (gas based) central heating system; we have some tubes installed that would allow medium transport from roof to cellar. But to be honest, atm. I'm not willing to invest in tanks etc.; it's just not cost efficient, even if I would do a lot of the installation work myself....

What are you trying to do? Remotely control store-bought solar lights?

@CrankyCoder A third the volume I'm looking at, but in your case no pump issues. Perhaps you might have a look at some of the less industrial sensors for what you want - a little differential sensor from Digikey on the end of a some poly pipe to a bib connex on the water line might give you all the info you need, ready compensated against atmosphere...

I have done some test on LGT8F328P-SSOP20 years ago. It may drop down to ~50uA under sleep mode. You may found the lgt8f branch in https://github.com/arcayi/mysensors/tree/lgt8f, which unfortunately was not accepted by master.

That's a great idea.

@4994james or just use internal vcc measurement as described on the same page. That saves you the voltage divider. I wrote a convenient library to measure vcc internally : https://github.com/Yveaux/Arduino_Vcc

There was a similar discussion over on the Blynk forum a few years ago, which might be worth reading.... https://community.blynk.cc/t/gas-stove-safety/17331 Pete.

Hello @mmarks3141, I am just learning about nRF52840. My IDE is Eclipse/Sloeber and Arduino NANO BLE 33. And I do not want to use the mbed-OS, because it destroys the timing of my self developed libraries running on any Arduino-Board. Your question is about using a serial interface, which depends on the firmware of your board. If it is mbed-OS, please look to the documentation of mbed: https://os.mbed.com/handbook/Serial. If it is not mbed-OS, look for the resources of Your boards firmware/libraries. For me (Arduino), it would be the initialization with Serial.begin(bitrate) in setup() and using Serial.print() for the output somewhere in loop(). By the way, thanks to @NeverDie for the examples.