@electrik Tested and worked as well. I think this is preferable over the first solution (forward function declaration) as it gives a reference where the functions are defined. Thank you!

Looks like the image didn’t come through. Let’s try again… [image: 1665499241428-2022-10-10_20-12-06.jpg]

You are right, @NeverDie. Actually, my power supply is coming from a french power meter, that means a lot of noise - as I'm DC from a 50Khz AC :). So, I did two things. Adding a 330 pF capacitor at the entry point of my board and a 47µF right next to the NRF24. Finally, I've upgrade my design to add a tantalium capacitor right next to the smd pads. Global view: [image: 1665309563478-img_1911-resized.jpg] Zooming the back with the polarized capacity (old fashion): [image: 1665309647156-img_1912-resized.jpg] Front view: [image: 1665309661635-img_1913-resized.jpg] New design: [image: 1665309671958-b602470d-a44b-4657-a992-0abecbc15cf9-image.png] Cheers, QQ

Hi @Guillermo-Schimmel, I know it's closed but just noticed this issue, you most probably had STP (Spanning Tree Protocol) enabled on that port, which is normal for ent switch, and while it waits for a loop it blocks trafic from that port. Disabling that feature should solve this problem.

Nice work @Kurtsejr, thanks for reporting back

@alexsh1 https://github.com/arduino/ArduinoCore-avr/issues/158 and https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60040 suggests it is a bug in gcc. It seems to have been resolved a long time ago though.

Thanks @mfalkvidd @OldSurferDude ! The problem really was the antenna. I was using the helical antenna below and I welded in the "wrong" part of it the first time. The second I welded it on the "right" place and it work. The RSSI is still below that the old and good wire... am I welding it on the really right place? [image: 1662842053028-screenshot-from-2022-09-10-17-28-57.png] Are helical antennas good? Thanks again for the great support you provide.

Nice work @nagelc, thanks for reporting back.

Aah ok that makes sense. My application is for rural use and I need the max distance possible. The slow response will not be a problem as the sensors don't send a lot of data at all. So maybe I will stay with the SF4096 for now but I will do some experimenting with the settings. Just to understand them a bit better.

@mfalkvidd multimeter

Problem solved: I was using as --my-mqtt-client-id the same name as my previous broker. Thanks for your help all!

I found the answer here. In config.c two lines have to be added and in config.h, one line is modified and two added

@mfalkvidd Yes, totally forgot about that link you put there. Thanks for reminding me. :)

@johnnyfp When first read this I was wondering if the signal would be reflected accurately off the surface. Apparently not. I'm currently using float sensors which gives me full and empty. I would like to get a level sensor that was accurate to a centimeter so that I could measure the rate of fill, too. My current endeavor is to take this tank gauge put eight magnetic switches around it, and a magnet on the wheel inside. The magnetic switches would be connected to an Arduino nano and I could tell where the wheel is. Alas, other projects have higher priority.

@iguaan I have it wrapped as you mentioned and soldered to the ground. Curiously enough I have the PA set to HIGH (had it set to LOW), but from my understanding, by setting it to HIGH the "power" of the antena is better no?, hence the reception should be better. or what am I missing? Thanks for the feedback as well :-)

This seems to be a fairly common problem with PIR motion sensors. One trick is to add a short sleep statement before your final one to let all the voltages settle: // Short sleep to let voltages settle (change duration as needed) sleep(500); // Sleep until interrupt comes in on motion sensor. Send update every ten seconds for testing. sleep(digitalPinToInterrupt(DIGITAL_INPUT_SENSOR), CHANGE, 10000); code_text

@Sundeep-Goel did u face any issues due to water vapours or water in general?

@CrankyCoder How far apart are the node and gateway? What is between them? Can you post any photos of of each with the wiring?