Hello from NL

[Shardan]

For short cabling it should work without as you can see from the photo, I just tested it.
Anyways, just try. In worst case it just won't work, it will not break anything.

Testcircuit_with_Tasklist_c.jpg (444.77 KiB) Viewed 9351 times

Regards
Shardan

[dawauz]

alright thanks, I will give it a try again.
Also mailman dropped an aliexpress envelope with a dht22 am2302 sensor.
The bme230 was almost 2 degrees warmer then it real was, maybe its own heat? Will the DHT22 more accurate? And which gpio can I use, just D2, I dont have it in use. And does that gpio port needed the high setting?

[Shardan]

If the BME shows too high values you may correct it via the formula field:

Code: Select all

%value% -2

for example, to reduce by 2 degrees.
The DHT22 uses a DS18B20 internally which has a tolerance of +/- 0.5°C.
For more info about accuracy and calibrating sensors take a look into the Wiki:
https://www.letscontrolit.com/wiki/inde ... d_Accuracy

The DHT22 can use nearly any GPIO. D2 is used as SDA for I²C usually.
With the resistor it is same as with I²C. Try without a resistor activating the pull up inside the settings.
If it works it's fine, if not add a 10KOhm resistor from 3,3V to the data wire.

Regards
Shardan

[choiminzi]

Ok but will there be changes in the design as from the link you provided?

So connecting wires together is no problem?
by reading it triple times, it seams to be needed, 2 10kohm.