@gerritv Thank you for pointing the problem. I was updating my code, while library was updated and found that i had funtion, that does not exists in library - i've added it in local copy in library, then it updated and my local patch was gone.
I've investigated previosly mentioned PR - and must admit that later they removed that re-initialisation when reading.
I will try a PR to slightly improve that behaviour, but looks like library is becoming abandoned.
Now look it should work next way: after previous measurement done you must run lightSensor.configure(ONE_TIME_) so it starts measuring - this is shown in their example BH1750onetime.ino. Then we have to wait, but measurementReady() relies on _delay_ms, which (as i remember) won't tick during sleep so you can't sleep. We can sleep but we can't get exact measurement time for current settings. Soto save battery we sleep max time - which, according to library is 180ms. Then we get reading. On next cycle - repeat.
As i understand maximum battery saving code will look like:
void setup() {
Wire.begin(); // Initialize the I2C bus (BH1750 library doesn't do this automatically)
lux_init_status = lightMeter.begin(BH1750::ONE_TIME_LOW_RES_MODE); //init ONE_TIME - at same time it will start measuring, but we will ignore this and double-call start measuring
if (lux_init_status == false) {
send(deb_msg.set("ErrorInitLux")); //notify us about failure
}
}
void loop() {
if (lux_init_status) { //making it fail-safe - if BH1750 brokes then other sensors will still work
lightMeter.configure(BH1750::ONE_TIME_LOW_RES_MODE); //this will start measuring, after it sensor will go into power-down mode
//note, that configure has 10ms sleep built-in
sleep(180); //this is guarantee time in this library with any config. We can't get that externally as for v1.3.0
long lux = lightMeter.readLightLevel(); //actually get results
}
sleep(SLEEP_TIME);//sleep between measurements
}
note that .configure() that is also called by .begin has built-in 10ms delay
i had my answer on ahtxx issue
Hi,
...figured out that the _address is messed up (i guess by mysensors).
It is impossible, because _address is private variable. The private data members cannot be accessed from outside the class (mysensors can not see it).
Сan you try my original library but with class initialization line
AHTxx aht10(0x38, AHT1x_SENSOR); //sensor address, sensor type
I searched on the forum how to use ID255 but found nothing practical
https://forum.mysensors.org/topic/8941/mysensors-get-temperature-value-from-another-node-through-the-gateway?_=1684325843882&lang=fr
https://github.com/mysensors/MySensors/blob/development/examples/PingPongSensor/PingPongSensor.ino
Water Meter Pulse Sensor
