[moolight0551]

I am having some success with getting my TX and Rx boards talking but have an erroneous "IN" temperature being displayed. It is 103 C and 128.6 % which is not right.

Do these measurements come from the BMP module on the Rx board? I just swapped my BMP180 for another one which I tested before soldering onto the board and now the second one displays crazy readings. I am using Vcc on this board rather than 3.3v(it has both) and have the jumper set to 5V

Dave

[werk_ag]

I am having some success with getting my TX and Rx boards talking but have an erroneous "IN" temperature being displayed. It is 103 C and 128.6 % which is not right.

Do these measurements come from the BMP module on the Rx board?

The IN Temp / Hum reading is from the DHT22 sensor. The BMPxxx module is only used for ATM readings.

[moolight0551]

Thanks. I will upload a test sketch to try and troubleshoot the DHT22 sensor.

Dave

[werk_ag]

When you got the readings indicated on the first post, you already had the DHT22 connected on the RX board?
You saw those readings on the RX display?
Your inside sensor is a DHT22 or a DHT21?

[moolight0551]

When you got the readings indicated on the first post, you already had the DHT22 connected on the RX board?
You saw those readings on the RX display?
Your inside sensor is a DHT22 or a DHT21?

Yes that is correct. I have a DHT22 connected. I think it may be faulty.

[werk_ag]

First check your DHT22 connection.



Then you could try a test sketch. On The RX board the DHT22 data pin is connected to Arduino pin 9.

[uncle_bob]

[ I think it may be faulty.

I can tell you from experience, that they don't like being wired wrong or fed with 12 volts.

[moolight0551]

First check your DHT22 connection.
Then you could try a test sketch. On The RX board the DHT22 data pin is connected to Arduino pin 9.

Thanks for the suggestions. Just tried a sketch I found on the Adafruit site which works for all types of DHT sensors and loaded it into the Weatherduino Nano. Tried the DHT22, no good! Tried a DHT11 which I have and modified the sketch for DHT11 and it reads temperature and humidity without a problem.

The DHT22 is dead! Maybe I let the smoke out but didn't see it.

[Boots33]

Not much good once the magic smoke is out.