Hello I'm in need some some advice on the NRF24L01+ wireless module. I'm trying to setup some Temperature sensors and Humidity Sensors as well Either be the Lm35 temperature sensor or the DHT11 / DHT22 temperature/ Humidity sensors. i have right now working on transmitting which i did i get about 40 to 50 ft through doors and walls that is not a problem. But the problem I'm having is it i go from first floor to second floor the Delay or Ping whatever you call it is really bad instead of it being like 1 to 2 seconds what i set it for to display it's more like 10 seconds. and I'm pretty sure I'm losing a lot more Signal going from one floor to another because of walls and doors and Power wiring and other RF noise. From what I'm seeing the Nrf24l01+ module can be setup as a mesh network i tried to do texting this way but was unsuccessful. I was wondering and this is my Question is there away to take another Nrf24L01+ module and just have it as a relay not doing nothing but relaying it kind of like a Signal booster of some kind? I been looking around and i can find some stuff on the google search on this subject but not actually how can i create this or where to start at can Someone Help me out?
Hi there,
I am also looking for help to make repeater nodes and leaf nodes, what i now up to now is:
The addressing must be correct for example:
Receiver - 00
Repeater nodes - 01 ... 05 (only 5 )
and now for leaf ( children ) nodes
the first children of node 01 would look like this: 011 ... 051 (only 5 )
for node 02 like this: 012 ... 052
and so on
also I've read somewhere that repeater nodes should not sleep and have no delay in the loop they should always be on network update
This is where my knowledge ends with no success of starting up the data transfer from leaf node 011 throught 01 to 00
I've also found that RF24Network.cpp can bwe modified to lower the transmision speed from 1Mbps to 250kbps and putting the module to max PA
but i didnt try it.
Hello Shalvan Thank you for the information i also know this much.what i alsk now is that each repeater node can be 5 more repeating nodes on it. so it's really endless of how many nodes can be setup i have see some setup from picture up to 20 nodes with sensors and whatnot. I'm reaching the limits of the Range of the nrf24l01+ modules and being at the end of the limits of the Signal range slows down from sending to receiving from what I'm seeing closer they are the better it updates the data Transfer. Also this is why having a Repeater node in between would help not on extend the range but also boost the signal from what I'm understanding i think.
Hello before you try the network thing there is a few things you can try,
First lower the data rate to 250kps this usually gives a bit better range.
Second look at how you have the nrf modules oriented i get better reception when i orient it like this see picture.
And last make sure you use big enough caps for the nrf power. 10uf should be enough but try with a 200+ just in case.
hello swe-dude i have tired as few things in your list there turning the module straight up i got better range of it about another 3 feet to 5 feet i think i have it all written down some place and i did lower the data rate that did help the range you are correct. i also have a 100uf cap on it. i didn't have anything lower then that. i did have a problem with it keeping the signal without the cap on it wasn't enough. the Problem is that going from room to 4 room on the end was a problem because of the old brick house blocking a lot of the signal. even if i go one floor below to where the transmitter was helped a little but i had to be directly under where the transmitter was at. but you are correct in to move the nrf module pointing straight up and lowering the Data rate.
I wish i can buy the ones with the external antenna i see on them. Or the ones with the External antenna with the Rf booster on it but they cost a little to much and I'm on a fix budget and i have 6 of the ones with the internal antenna's for a while now.
I saw this article and remembered you, Joseph C. [in re. increasing range through the 4-level house, etc.]
Two ways to extend range, neither so complicated (nor attempted by me.)
Hello Runaway pancake thank you for that. i did extend the range somewhat with that it did help 