Update : Day 3 and still all PIR nodes are working
I´m using the given sketch here.

Still up and running stable.
8Mhz Bootloader did the trick for me

@siod
I removed both to make the smaller ( HC-SR505 ) work with ~3Volt and bridged these contacts as shown in the picture

They work perfectly fine for me and are not too sensitive.
Actually they dont even react on my cats, which is nice, because the "bigger" HC-SR501 always did...

Hello, i have a strange problem.
I have a lot nodes working properly, but when trying to connect another node ( i tried several) it crashes FHEM.

These nodes i want to connect have been working, but due to a new Gateway i needed to reconnect all of them.
So, 10 out of 14 are connecting just fine, but as i said, there are some nodes that crash the system when i enable autoinclusion and power the node on.

Any suggestions ?
I already installed FHEM on a new machine and restored from a backup, but the problem persists

KR

Komaandy

I am having the exact same issues with the Mysensor2.0 version ... (!)

When using Arduino IDE 1.65 and Mysensor 1.54 librarys and the sketch that is pinned in the header it works .

And with the "bigger" HC-SR501 all one need to do is obviously to connect the VCC to the pad or pin.
For me at least it is working pretty fine as well. No false positives or anything else negative.
Of course you have to remove the jumper first.

@siod
I removed both to make the smaller ( HC-SR505 ) work with ~3Volt and bridged these contacts as shown in the picture

They work perfectly fine for me and are not too sensitive.
Actually they dont even react on my cats, which is nice, because the "bigger" HC-SR501 always did...

@m26872
thanks again for this great idea and that you developed these fine boards !
And by the way...
As you are using fhem as well...
How do you manage to reset the tripped "1" in Fhem ?
I just added a delay and a gw.send"0" to your sketch :), but using fhem would be more sophisticated actually ...
Thanks

Still up and running stable.
8Mhz Bootloader did the trick for me

Update : Day 3 and still all PIR nodes are working
I´m using the given sketch here.

So, it seems i made some progress.
After changing to the @GertSanders bootloader ( https://www.openhardware.io/view/33/Various-bootloader-files-based-on-Optiboot-62) all the PIR nodes seem to be stable.
I´m using these settings

Wish me luck

@gohan
maybe like this ?

void loop()


{
	wdt_enable(WDTO_8S);
	// Read digital motion value
	bool tripped = digitalRead(DIGITAL_INPUT_SENSOR) == HIGH;

	Serial.println(tripped);
	send(msg.set(tripped?"1":"0"));  // Send tripped value to gw
wdt_disable();
	// Sleep until interrupt comes in on motion sensor. Send update every two minute.
	sleep(digitalPinToInterrupt(DIGITAL_INPUT_SENSOR), CHANGE, SLEEP_TIME);
 

}```

@gohan said in My Slim 2AA Battery Node:

LDO

@gohan
Hi, i added a WDT now into the MotionSensorSketch.
Well at least i guess i did. I just read about it , never used it before. Does the 1Mhz Optiboot boatloaders support this ?

Unfortunalty I didnt recieve my 3,3V boosters yet and i dont have LDO´s around.
Concerning the bootloaders. Do you have a suggestion which one to use ? As I read that sticking to 1Mhz is important when using only 2AA batteries because of instability when voltage goes belowe certian values.
Obviously i could use more batteries, but then i cant supply the nRF2401 from the board right ?

// Enable debug prints
#define MY_DEBUG

// Enable and select radio type attached
#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69
#define MY_NODE_ID 40
#include <MySensors.h>
#include <avr/wdt.h>

unsigned long SLEEP_TIME = 120000; // Sleep time between reports (in milliseconds)
#define DIGITAL_INPUT_SENSOR 3   // The digital input you attached your motion sensor.  (Only 2 and 3 generates interrupt!)
#define CHILD_ID 1   // Id of the sensor child

// Initialize motion message
MyMessage msg(CHILD_ID, V_TRIPPED);

void setup()
{
	wdt_enable(WDTO_2S);
	pinMode(DIGITAL_INPUT_SENSOR, INPUT);      // sets the motion sensor digital pin as input
}

void presentation()
{
	// Send the sketch version information to the gateway and Controller
	sendSketchInfo("Motion Sensor", "AndyWasHere");

	// Register all sensors to gw (they will be created as child devices)
	present(CHILD_ID, S_MOTION);
}

void loop()
{
	// Read digital motion value
	bool tripped = digitalRead(DIGITAL_INPUT_SENSOR) == HIGH;

	Serial.println(tripped);
	send(msg.set(tripped?"1":"0"));  // Send tripped value to gw

	// Sleep until interrupt comes in on motion sensor. Send update every two minute.
	sleep(digitalPinToInterrupt(DIGITAL_INPUT_SENSOR), CHANGE, SLEEP_TIME);
 wdt_reset();

}```