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  • Raspberry PI and DHT22 temperature and humidity logger with LAMP and Email warnings

    Hi.Thanks for this great tutorial. I'm new to all of this and I'm stuck, so I really need your help. So my DHT22 comes with 3 pins instead of 4 as shown in the tutorial. It also comes with wires. So I made the connections as instucted, but on a breadboard. And I just cannot seem to get any reading. I tried Adafruits example code, I even tried writing some python code I found online, but to no avail. I have not connected any power source to the breadboard, because I figured that adding power source to the pi would be enough. I made connections in the following fashion:-Sensor wire for each pin to Breadboard -Jumper wires from same vertical row on breadboard straight to the pi pins* And I did put a 10k ohm resistor between the 3.3v and data pin.Any kind of help is welcome.Thanks.

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