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).

Some clarification on Presentation, Set, Req et al

NotTooTechy last edited by

Probably a stupid thing, but I am trying to work out the correlation between "presentation" and "set req"

I understand the Presentation is a notification of sorts to the main system, but am unsure what I should be using and why for both "Presentation," and "set req" options.

So, here's what I have in the house, two systems, one for heating (240v baseboard), one for cooling (swamp cooler)
I have DHT-11 sensor in the lounge with NRF24L back to master.
I have a two-relay board at the mains box for the 240v baseboard supply with NRF24L back to master.
I have a three-relay board at the swamp for Low, High and Pump with NRF24L back to master.

What do I Present and what do I use for a "Set" command for the heating and/or cooling? There doesn't seem to be a Presentation type for "Relay" and no "Set" option for "On" and "Off."

Could someone please give me some examples of what and how to assign those combinations?

I am a Mechanical Engineer and Programmer used to seeing things in logical sequence and order, but this what-goes-with-what is a mystery to me.
Reply Quote 0
1 Reply Last reply

1
Posts

520
Views

Suggested Topics

Update RF24 library to latest version
Bug Reports • • andriej

4

0
Votes

4
Posts

2570
Views

@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)
GatawayESP8266 - Compile error
General Discussion • gatawayesp8266 compile error • • skom

15

0
Votes

15
Posts

123
Views

@eiten Ran into the same error but of course the community is always at hand, ready to help! Great! I'm using MySensors 2.3.2 release version. Downgrading the ESP8266 board library to 2.7.4 as suggested by @OldSurferDude did the trick. I'm still clinging to MySensors. So simple and inexpensive to use! All sensors and other stuff connects over three MQTT GW in three locations back to my Home Assistant. PS: Get well soon! Regards, Gunnar
No merge into master in the last 5 years, should we use development?
General Discussion • • kiesel

9

0
Votes

9
Posts

36
Views

For me almost all I need is in Master. For some nice to haves I have some custom libraries, like a message and a presentation queue. The only wish I have is dual led support.
Anybody got one / a few spare minimalist rfm69hw shields for wemos d1 mini?
General Discussion • • kiesel

4

0
Votes

4
Posts

21
Views

Thanks for the offer @TheoL ! I have moved on to a differenct project. Also, a lesson that I have learned many times, "If it works, don't fix it!" -OSD
Need advice on solar powering with LiFePo4 battery
General Discussion • • willemx

17

0
Votes

17
Posts

166
Views

LiFePO4 batteries are a great choice because they have a long life cycle and are much safer than other lithium-based batteries. However, you need a solar charge controller that’s compatible with LiFePO4 to prevent overcharging and maintain efficiency. A good MPPT controller can significantly boost energy harvest from your panels. Also, ensure your solar panel output matches your power needs. If you're in solar ireland, you might find some local companies that offer tailored solutions for maximizing solar efficiency in lower light conditions.
Running out of nodeId's
General Discussion • mysensors • • NielBierman

8

3
Votes

8
Posts

46
Views

@TheoL Not only did I put in delays, too, but I put in delays that were based upon the ID (which was stored in NVRAM)! This helped. caveat: This is probably not accurate be helps to explain the challenges with a large network. My initial experience with Arduino/nRF24 was using the libraries from TMRh20. Those libraries allowed a node to be a repeater, but only for 6 nodes. The primary node 0, master, only allowed 6 nodes to connect to it. The nodes connected to it also allowed 6 nodes. Subsequent nodes had to go through one of these repeating nodes. But the depth was only 4 deep. The master assigned node IDs if the node didn't already have one; similar to a MAC address. The master also kept track of the addresses (ARP table?). Addresses were 4 octets (base in the form of D/C/B/A. A node connected directly to the master had an address of 0/0/0/a (where 0/0/0/0 was reserved for the master). A node connected through another node had an address of 0/0/b/a, and so forth. But what happens is that a parent node has to mange the data from all its child nodes and their child nodes and their child nodes. Thus a node would get so bogged down dealing with this traffic that it din't do its sensor task very well. It is my belief that MySensors either uses TMRh20's libraries or has developed some aspects based on his initial work. I see that that TMRh20 has a version 2 and I have not experimented with it. I did find that MySensors worked better than version 1. Thus, my curiosity. I am also duly impressed at the magnitude of hardware. Currently a nano like device from Aliexperss is US$2-3, nRF24 ~ US$1, power supply ~ US$1.50, power cord ?, case?, sensors!? While the hardware cost is daunting, even with a PCB it's a lot of work building those up. So, yeah, I'm impressed! -OSD

Some clarification on Presentation, Set, Req et al

Suggested Topics

Update RF24 library to latest version
Bug Reports • • andriej

GatawayESP8266 - Compile error
General Discussion • gatawayesp8266 compile error • • skom

No merge into master in the last 5 years, should we use development?
General Discussion • • kiesel

Anybody got one / a few spare minimalist rfm69hw shields for wemos d1 mini?
General Discussion • • kiesel

Need advice on solar powering with LiFePo4 battery
General Discussion • • willemx

Running out of nodeId's
General Discussion • mysensors • • NielBierman

53
Online

11.4k
Users

11.1k
Topics

112.6k
Posts

Some clarification on Presentation, Set, Req et al

Suggested Topics

Update RF24 library to latest version Bug Reports • • andriej

GatawayESP8266 - Compile error General Discussion • gatawayesp8266 compile error • • skom

No merge into master in the last 5 years, should we use development? General Discussion • • kiesel

Anybody got one / a few spare minimalist rfm69hw shields for wemos d1 mini? General Discussion • • kiesel

Need advice on solar powering with LiFePo4 battery General Discussion • • willemx

Running out of nodeId's General Discussion • mysensors • • NielBierman

53Online

11.4kUsers

11.1kTopics

112.6kPosts

Update RF24 library to latest version
Bug Reports • • andriej

GatawayESP8266 - Compile error
General Discussion • gatawayesp8266 compile error • • skom

No merge into master in the last 5 years, should we use development?
General Discussion • • kiesel

Anybody got one / a few spare minimalist rfm69hw shields for wemos d1 mini?
General Discussion • • kiesel

Need advice on solar powering with LiFePo4 battery
General Discussion • • willemx

Running out of nodeId's
General Discussion • mysensors • • NielBierman

53
Online

11.4k
Users

11.1k
Topics

112.6k
Posts