Posts made by frydrik

@skywatch
Hi, now I do, I have 1 gate and 3 nodes, I have already connected 1 node to a test meter, now I choose the same data that is displayed on the meter screen and MYCONTROLLER, node ID I install it manually, now I want to test at what maximum distance can the connection between the gate and the node be made, the gate is made on TTGO LoRa32 SX1276 OLED and the test node also TTGO LoRa32 SX1276 OLED, the other 2 nodes are nodemcu esp8266 + RFM95, they have standard antennas that do not inspire me much confidence , I want to try to build other antennas to see the difference between the standard antenna and the one I made, then I want to solve the problem with bootloader for FOTA, I think to create the nodes from nodemcu esp8266 + RFM95 because I want to connect to a node several counters from 2-6-8, because arduino Pro Mini / Nano no more than 2 interrupts esp8266 all gpio can be as interrupt, here I think how to do bootloader for FOTA.!!
my test stand:

@skywatch Hi, thank you very much for the encouragement, I will try to document the steps I did with pictures with schemes, but I will also think about security.

@skywatch Hello, I am from the Republic of Moldova, I am a Romanian speaker, I also learned the Russian language, My country is the poorest country in Europe. I am also trying to implement this remote meter reading project as a pilot project, on my own account, I have no funding here, I have to implement it myself without any resources. so I can't say this is a commercial project

@mfalkvidd Hello, can you help me understand, I use the example to read the data on an electric meter, but I have some problems,
when I set PULSE_FACTOR with the one indicated on the meter I receive the wrong result, for me the meter has PULSE_FACTOR 5000 and I receive double V_VAR1 with the number of real pulses, that is if the number as ex. 10 pulses the node transmits in Gateway 20. if I set PULSE_FACTOR = with the one indicated on the counter I get a value double with the real one, in the sketch I set PULSE_FACTOR 2500 and now I get real kwh as on the counter, my question is why does V_VAR1 have such values?

@skywatch Hello, I'm fascinated by the mysensors project, take off your hat in front of those who develop it, I'm not a programmer, that's why I can ask a lot of stupid questions, but otherwise you can't gain experience, I'm currently programming an arduino I use graphical programming I use a Russian application: flprog is very good for me, you can program an arduino with superficial programming knowledge. Now I'm trying to learn C ++ so I can clear up the code in arduino.

@skywatch thanks for the answer, I understand that 254 nodes can be connected to a Gateway, and 255 sensors can be connected to each node, the question is how to apply this for reading electric meters where their number is considerably higher than 254, as with a node to read as ex. at least 20 meters?

@mfalkvidd thanks for the answer, but I have another question, why can't the number of nodes be increased to more than 254? Is it a hardware limitation or can these values be changed inside libraries?

@mfalkvidd Hi, I have a question regarding the numbering of nodes, as I understood, 254 can be connected to a Gateway, if I configure a node of these 254 as a repeater then at this node they will connect in theory another 254, the question is how the handle can define this number of nodes?
#define MY_NODE_ID ------ does it work in the range from 1 -254?

to start with loraWan do I need to study the Arduino-LMIC library?

the problem is that I can't find code examples for LoraWan nodes so I can start this project on LoraWan, first I created my own LoraWan gateways on TTGO LoRa32 SX1276 OLED, and on another module TTGO LoRa32 SX1276 OLED a test node as in the video on youtube https://www.youtube.com/watch?v=T40a51TAMDI&t=401s
something works but the number of messages that reach the gate are very small in 24 hours I can receive 5-6, the problem I think I miss a gateways with one channel, and the node transmits randomly on that 8 channels, in addition I do not understand how to combine a sketch that reads the pulses from a meter with the loraWan library, I can't find examples of how to do it, that's why I was enchanted by the mysensors community, it's simple to create a node to understand how it works,
in mysensors I found what I needed + it is a receptive community, if you have experience with LoraWan please guide me how to start creating these nodes, I found how to build a local LoRaWAN Network Server, and unfortunately here I stopped

These technologies are quite expensive to make, mysensors comes with some pretty cheap solutions, I think mysensors can be used in urban areas where the density of electric meters is quite high, especially in the panels where the meters are usually installed are grouped several as ex. 4 and more, for this panel you can mount a node that will read the indications of all meters, thus drastically reducing the number of nodes and the cost will be even more attractive to carry out this project, I thought that these nodes can be made on esp8266 + RFM95 to gain greater distances between Gateways nodes, in rural areas I will think about implementing LoraWan, for me it is quite complicated to clarify with this technology.

@mfalkvidd Thanks for the answer, I want to create a network for reading electric meters in a city with a population of over 500,000 people, the limit of 254 nodes is too small, yes, I understand that you can create more Gateways to share them after different frequencies, the spreading factor, coding rate, and I understand according to this scheme that the point where there will be Gateways will consist of several Gateways each will have as ex. a different frequency and only the nodes will be connected to it with its frequency, you can look at the sketch drawn by me. It gets too complicated, can it be done in a single GW or with a reduced number of GW?

@mfalkvidd Hello, you can give an example of how to do this ? and if it is possible to perform on a Gateways ?

Hello, how can this project be adapted to connect several meters to a node? using esp32 or esp8266
https://www.mysensors.org/build/pulse_power

Hello, this sensor can be adapted for 2-4 meters ?

Hello, can you describe how you connected this module to mysensors?