Weather and Climate Flashcards
(7 cards)
1
Q
What does an LM35 sensor report?
A
temperature with varying voltage
2
Q
How many leads does LM35 have?
A
Three
3
Q
Formula to convert output lead voltage to temperature? Range of temperatures and voltage LM35 can measure
A
T= 100*V; T- 2C to 150C V- 0 to 1.5
4
Q
What sensor measures humidity and temperature?
A
DHT11
5
Q
How does DHT11 send bits?
A
As very short and rapid pulses
6
Q
What sensor measures atmospheric pressure?
A
BMP085 on GY65 board
7
Q
What kind of sensor is soil humidity sensor and how does it work?
A
A simple analog resistance sensor; it measures conductivity eg tap and ground water contain diluted salts that make water conductive
