Data Sheet

81 : circuit 4b
TROUBLESHOOTING
Sensor is
heating up
Make sure that you wired the temperature sensor correctly.
The temperature sensor can get warm to the touch if it is wired
incorrectly. Disconnect power from your microcontroller, rewire
the circuit, and connect it back to your computer.
Temperature
value is
unchanging
Try pinching the sensor with your fingers to heat it up or pressing
a bag of ice against it to cool it down. Also, make sure that the
wires are connected properly to the temperature sensor.
Values not
printing to
screen
If you see text but no temperature values, there could be an error
in your code. If you see no text at all, adjust the LCD contrast.
A B
LCD “HELLO, WORLD”
TEMPERATURE SENSOR
“DIY WHO AM I?” GAME
C
You’ve completed
Circuit 4B!
Continue to circuit 4C to learn how to make a “DIY Who Am I?” game.