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Hi,
I'm having a bit of trouble getting my DH22 to work. My code is pretty simple

var dht = require("DHT22").connect(D5);
dht.read(function (a) {
  console.log("Temp is "+a.temp.toString()+" and RH is "+a.rh.toString());
});

the result is WARNING: Unable to set watch. You may already have a watch on a pin with the same number (eg. A0 and B0),
or this pin cannot be used with watch

I have tried a few pins with the same result. any suggestions would be welcome