Troubleshooting

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?

@novicit @bjacobse Good call!

Maybe they reflowed the chip on backwards (rotated 180 degrees)? You could compare the chips orientation to photos of known good breakout boards, or to the datasheet. If so, you'd definitely have a solid case for a refund if it's worth your time to pursue it with the seller.

http://learntohackit.com/intro/# it can be useful information ???

Just for others coming here in the future: I changed the connections as suggested by @mfalkvidd , restarted the node and now the radio runs from batteries and the Arduino is powered from USB (phone charger). Unfortunately this doesn't seem to have improved the radio communication, but this is another story... Stefano

Hi @Merlotmaker, If you want more reactions from members, you should provide more information. what for sensor do you have, because you are speaking about BMP280 and BME280 the lib you are referring to is a specific one for the https://www.sparkfun.com/products/13676 how did you connect your sensor to the UNO? did you follow this guide already? https://learn.sparkfun.com/tutorials/sparkfun-bme280-breakout-hookup-guide

@OldSurferDude I have since looked at various modules that are sold on the internet. My conclusion is that they are not all the same. Some seem to be much better than others. The price also shows that. I use this shield for the radio comms NANO V3 Wireless Shield. It has the caps already built in as well as some level shifting for the signal pins. [image: httprobotdyn.compubmedia0g-00005243nano-wireless-shieldphotophotoangle0g-00005243nano-wireless-shieldassembled.jpg]

Hi all, This is what I Simply ended up with to clear the eeprom, // load core modules only #define MY_CORE_ONLY #include <MySensors.h> void before(){ Serial.begin(115200); Serial.println("Started clearing. Please wait..."); for (uint16_t i=0; i<EEPROM_LOCAL_CONFIG_ADDRESS; i++) { hwWriteConfig(i,0xFF); } Serial.println("Clearing done."); } void setup() { Serial.begin(115200); Serial.println("Started clearing. Please wait..."); for (uint16_t i=0; i<EEPROM_LOCAL_CONFIG_ADDRESS; i++) { hwWriteConfig(i,0xFF); Serial.println(i); } Serial.println("Clearing done."); } void loop() { // Nothing to do here... }

If you have the wrong modules, it could give you problems yes. Check out the buying guide, there are recommendations for the modules to pick, for example the ebyte ones. The will work very reliable. Big advantage of NRF24 to RFM69 is the throughput and response time.

@Nigel31 glad you got a fix :+1:

Hi, thanks you so much for answer. I continue to search and I think I find what is wrong.. . .. It's because I use pin pitch female [image: 1652640171597-6d6ade87-7585-4789-97e1-2ed0689a769e-image.png] And the connection is very bad.. Sometime it's work, sometime don't.. . I sold it, and I correctly use 3 NRF now... I continue to compare but now I have a comparaison point... :) I continue to search but you're right, the parent ID is not setup same way on different sketch. I try it next week.

intermediary result: I have started a second gateway and now the nodes do communicate... puzzled... I remove the extra gateway... same situation... so reprogram gateway with: #define MY_RF24_PA_LEVEL RF24_PA_LOW so it seems this was the responsible for this ! thanks !

@epierre Yay, good job!

I found that timelib.h uses a tremendous amount of memory. You avoid using it by getting time string from the controller. I have also found that when you're using that amount of memory that bad things happen, as you noted. I use global variables to avoid the transient nature of function variables. I'll be looking forward to other comments as, I, too, do not know all the tricks;) OSD

Well done @ejlane, thanks for reporting back.