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Forum Index : Microcontroller and PC projects : DHT22 on 100 pin

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palcal

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Joined: 12/10/2011
Location: Australia
Posts: 1805
Posted: 07:59pm 07 Feb 2016
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I have a DHT22 connected to pin 48 on the 100 pin chip with V 4.07
I'm getting values of 1000 C and 1000% I have checked the connections and the 4.7K resistor and the voltage at the DHT22. The chip is also running a TFT, pressure sensor and RTC and all are running OK. Tried another DHT22 same result.
Is it OK to use pin 48, the manual says 'any pin'.
Paul.

EDIT. Now working OK SMD resistor bad solder joint.
Sorry, another dumb mistake.

PaulEdited by palcal 2016-02-09
"It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all"
 
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