Created
March 5, 2020 03:44
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AM2320 to Raspberry Pi 4B GPIO python3
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#!/usr/bin/env python3 | |
# AM2320 PINOUT to Raspberry Pi 4B GPIO pins | |
# ╔═════════╗ | |
# ║╬╬╬╬╬╬╬╬╬║ | |
# ║╬╬╬╬╬╬╬╬╬║ | |
# ║ ║ | |
# ║ 1 2 3 4 ║ | |
# ╚═╪═╪═╪═╪═╝ | |
# │ │ │ │ | Raspberry Pi pins | |
# │ │ │ └─ SCL = GPIO 3(SCL) | pin #5 | |
# │ │ └─ GND = Ground | pin #9 | |
# │ └─ SDA = GPIO 2(SDA) | pin #3 | |
# └─ VDD = 3v3 power | pin #1 | |
# pip3 install adafruit-circuitpython-am2320 | |
# pip3 install adafruit-blinka | |
# Read more at https://learn.adafruit.com/adafruit-am2320-temperature-humidity-i2c-sensor | |
import time | |
import board | |
import busio | |
import adafruit_am2320 | |
from signal import signal, SIGINT | |
from sys import exit | |
# create the I2C shared bus | |
i2c = busio.I2C(board.SCL, board.SDA) | |
am = adafruit_am2320.AM2320(i2c) | |
def handler(signal_received, frame): | |
# Handle any cleanup here | |
print('SIGINT or CTRL-C detected. Exiting gracefully') | |
exit(0) | |
if __name__ == '__main__': | |
# Tell Python to run the handler() function when SIGINT is recieved | |
signal(SIGINT, handler) | |
print('Running. Press CTRL-C twice to exit.') | |
while True: | |
try: | |
degreesF = ((am.temperature * 1.8) + 32) | |
print("\r Temperature: {0:.2f}°F Humidity: {1:.2f}%".format(round(degreesF,1), round(am.relative_humidity,1)), end='') | |
time.sleep(2) | |
except: | |
print("\r Trying again ", end='') | |
time.sleep(.5) |
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