Getting RHT03 Temperature- and Humidity Sensor working at 3.3V

Around a week ago, I tried to get a RHT03 sensor to work with my JeeNode which runs at 3.3V.

Whatever i did, it always returned a timeout error. The datasheet specifies the sensor to work from 3.3 to 6V, so it should work. If i connect 5V to VCC, it worked fine , but not with 3.3V.

At the end i found out that i can connect Pin 3 and 4 (the two pins on the right when looking from the front) to make it work with 3.3V. Pin 3 id NULL, and pin 4 is GND.

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