The_Official_Raspberry_Pi_-_Beginner’s_Book_Vol1,_2018 (1)

Chapter 7 Physical Computing with the Sense HAT 179

THE OFFICIAL RASPBERRY PI BEGINNER’S GUIDE

ptemp = sense.get_temperature_from_pressure()

temp = (htemp + ptemp) / 2

print(temp)

Click the Run icon, and you’ll see a number printed to the Python console (Figure 7-24). This
time, it’s based on readings from both sensors, which you’ve added together and divided by
two – the number of readings – to get an average of both. If you’re using the emulator, all three
methods – humidity, pressure, and average – will show the same number.

5 Figure 7-24: A temperature based on the readings from both sensors

CHALLENGE: SCROLL & LOOP

Can you change your program to take a reading from each

of the sensors in turn, then scroll them across the LED

matrix rather than printing them to the shell? Can you make

your program loop, so it’s constantly printing the current

environmental conditions?