Pirbox lite don't communicate with gateway

[f1ssf]

Hi alls,
I have finish upload in gateway and pirbox.
My gateway is connected and waiting (serial monitor), and MQTT is discovered in MQTT Explorer, but no topics when activate PIR sensor by hand.
My pirbox lite is ready (I think)
I think my config.h is correct.
What is solution to verify pirbox send really json datas ?
Thank's

[PricelessToolkit]

1. Which module is CapiBridge using?

// Select which LoRa module this CapiBridge is uses:

//#define LORA_MODULE LORA_MODULE_SX1276  // SX1276 Module (orders shipped before Aug 2025)
#define LORA_MODULE LORA_MODULE_SX1262  // SX1262 Module CapiBridge v2 (orders shipped after Aug 2025)

2. For testing, use the default code and only change MQTT, WIFI, and Module Version settings, nothing else Lora-related.
   Normally, if u use the default frimware, it will work out of the box, and you can see in the terminal all received messages. But as I understand, you have assembled a full kit yourself,

• So check if Pirbox-Lite can wake up and the LED is lighting up.
• Check the LoRa modules if they match
• If you have a cheap RTL-SDR, you can check the 868mhz activity.

[f1ssf]

1> module verify it is ok
2> I use default code. - and Yes I have assembled full kit myself - I love challenge
Ok for pirebox, I have examined the schematic, I see the PIR sensor triggers the lora module.
3V is ok, but PIR sensors don't trigger 3,3V. I must explored this problem and feedback.
Ok for RTL-SDR, good idea.
thank

[f1ssf]

I 've done somes measures on PIR and latch.
1> 3V is ok
2> U5-4 0 to 3V when PIR detection
3> U6-1 0 to 3V when PIR detection
U6-2 0 to 3V when PIR detection
U6-4 allways 0V I think problem is here due to XOR, but I don't understand why ? normally RC 10K + 1uF introduce delay?
Thank you

[PricelessToolkit]

U6-4 is almost always = 0V. "U6-4" changes state briefly when pir is triggered, so its ok. Check U14-4 and Q1-3 when triggered.

[f1ssf]

I have pulse on U14-1 (see picture), but U14-4 is allways at 3,3v.
Q1-2, Q-3 = 4V, Q1-1=0.03V
If I force label OFF from Q3 to 3,3v , U14-4 and Q1-3 drop 0v,

[PricelessToolkit]

U14-4 will be 3.3V after trigger. To power it off, pull down U14-2 or pull high Q3-1. So if all that is working!!!!, Lora module and Attiny get power, check the soldering between the module and Attiny. There is nothing else to check!! :)

[f1ssf]

Yes, I understand, but U14-4 is always at 3.3V, whether triggered or not, whereas for U14-1, I get a pulse when the PIR sensor detects something. sorry, I'm going in circles ;-)

[PricelessToolkit]

Yes, after trigger U14-4 is 3.3V, and it will stay like that until you pull "Q3-1 briefly high", then it will reset the U14 state, until the next pulse.

"Attiny pull-up Q3-1 after transmission is done." So pirbox is powered down

[f1ssf]

I don't understand when I connect bat Led D1 light on immediately and stay on all the time.
When I connect briefly 3v on signal OFF on Q3 LD1 Off, if I connect 3v permanently on signal OFF LD1 Off and when I activate PIR LD1 ON twice. Never TX on rtl.

[PricelessToolkit]

If you connect the battery and the LED stays on and doesn't power off, it can have 2 reasons.

1. For some reason radio can't initialize "connection problem", and it failed to TX, and for that reason power off script is not working.
2. Wrong LoRa module or frequency.

[f1ssf]

my modules are Ra-01SH on PIR and Gateway. I see in PIR box .ino include is for Ra01S, I think it is correct (generic)
also, I have done a small test, I think it is a problem initially Lora, I have added powerOOF:

// -------------------- RADIO -------------------- //
static inline void initLoRaRadio() {
int16_t ret = lora.begin(BAND, TX_OUTPUT_POWER);
if (ret != ERR_NONE) {
// Halt if init fails
powerOFF();
while (1) { }
}

LD1 turn ON, and return to OFF, I think radio not responding?
I continue my investigation....
Tnx

[f1ssf]

Hi I have found the problem. I have checked with magnifying glass, ans I ve seen that attiny qfn is not very parallel to pcb. I have a solder excess on thermal pad, and bad solder on spi pad.Sorry about the headache, I know I bothered you ;-)

[PricelessToolkit]

The main thing is that you found the problem!!!!

[f1ssf]

Last line on the right, when the PIR sensor detects movement, the LoRa LED on the gateway flashes.
I checked in MQTT Explorer, I can see the Capibridge "online," but I don't see any topics... I think I'm getting closer to my goal...

IDE Capibridge Monitor, only this :

Mqtt discovery, only RSI

[PricelessToolkit]

Yep, Capibridge has only RSSI.
sensor is in /homeassistant/sensor/PirBoxL/.....

[f1ssf]

yes of course, but normally I must seen play load in mqtt explorer ? pirboxL ON or OFF ?

[f1ssf]

Hello, I close discission, all is OK now.
Thank again, and I hope you have received my coffee;-)

[PricelessToolkit]

Thank you!! :), I am glad everything works.