Tag Archives: temperature sensor

Arduino Micro and temperature+humidity sensor DHT11

Today is sensor day, so I’ve managed to get the [amazon &title=DHT11&text=DHT11] working:

Wire it like that:
([amazon &title=DHT11&text=DHT11] -> Arduino Micro )

  • Pin 1 (orange cable) to 5V
  • Pin 2 (yellow cable) to GND
  • Pin 3 – not needed
  • Pin 4 (yellow again -.-) to A0

Use the following code I’ve found here:

Getting you a result like that:

It doesn’t seem to be very accurate, but that’s expectable rated by its low price (<2€)

 

 

Arduino Micro and temperature sensor LM35

Using the LM35 with the Micro is quite easy.

Just connect:
(LM35 -> [amazon &title=Arduino Micro&text=Arduino Micro] )

  • 5V to positiv
  • GND to
  • S to A4

And run the following code (should run on every arduino):

Getting this result:

Please note its you might need to adjust the 0.48828125 to a value thats verified with another temperature sensor (or just a normal celsius thermometer) .

The next step for me is to write a little ROS publisher for this sensor.