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• Adafruit ADT7410 Library

Simple test — Adafruit ADT7410 Library 1.0 documentation

Ensure your device works with this simple test.

import board

import adafruit_adt7410

i2c = board.I2C()  # uses board.SCL and board.SDA
# i2c = board.STEMMA_I2C()  # For using the built-in STEMMA QT connector on a microcontroller
adt = adafruit_adt7410.ADT7410(i2c, address=0x48)
adt.high_resolution = True

while True:
    print(adt.temperature)
    time.sleep(0.5)

Example showing the Resolution mode setting

import time

import adt7410
import board

i2c = board.I2C()
adt = adt7410.ADT7410(i2c)

adt.resolution_mode = adt7410.HIGH_RESOLUTION

while True:
    for resolution_mode in adt7410.resolution_mode_values:
        print("Current Resolution mode setting: ", adt.resolution_mode)
        for _ in range(10):
            temp = adt.temperature
            print(f"Temperature :{temp:.2f}C")
            time.sleep(0.5)
        adt.resolution_mode = resolution_mode

Temperature Limits example

import adt7410
import board

i2c = board.I2C()  # uses board.SCL and board.SDA
adt = adt7410.ADT7410(i2c)

adt.low_temperature = 18
adt.high_temperature = 29
adt.critical_temperature = 35
adt.hysteresis_temperature = 2

print(f"High limit: {adt.high_temperature}C")
print(f"Low limit: {adt.low_temperature}C")
print(f"Critical limit: {adt.critical_temperature}C")

adt.comparator_mode = adt7410.COMP_ENABLED

while True:
    print(f"Temperature: {adt.temperature:.2f}C")
    alert_status = adt.alert_status
    if alert_status.high_alert:
        print("Temperature above high set limit!")
    if alert_status.low_alert:
        print("Temperature below low set limit!")
    if alert_status.critical_alert:
        print("Temperature above critical set limit!")
    time.sleep(1)

Example showing the Operation mode setting

import time

import adt7410
import board

i2c = board.I2C()
adt = adt7410.ADT7410(i2c)

adt.operation_mode = adt7410.SPS

while True:
    for operation_mode in adt7410.operation_mode_values:
        print("Current Operation mode setting: ", adt.operation_mode)
        for _ in range(10):
            print(f"Temperature: {adt.temperature:.2f}C")
            time.sleep(0.5)
        adt.operation_mode = operation_mode

This is a simple test for boards with built-in display.

import time

import board
from adafruit_display_text.bitmap_label import Label
from displayio import Group
from terminalio import FONT

import adafruit_adt7410

# Simple demo of using the built-in display.
# create a main_group to hold anything we want to show on the display.
main_group = Group()
# Initialize I2C bus and sensor.
i2c = board.I2C()  # uses board.SCL and board.SDA
adt = adafruit_adt7410.ADT7410(i2c, address=0x48)
adt.high_resolution = True

# Create Label(s) to show the readings. If you have a very small
# display you may need to change to scale=1.
display_output_label = Label(FONT, text="", scale=2)

# place the label(s) in the middle of the screen with anchored positioning
display_output_label.anchor_point = (0, 0)
display_output_label.anchored_position = (
    4,
    board.DISPLAY.height // 2 - 60,
)

# add the label(s) to the main_group
main_group.append(display_output_label)

# set the main_group as the root_group of the built-in DISPLAY
board.DISPLAY.root_group = main_group

# begin main loop
while True:
    # update the text of the label(s) to show the sensor readings
    display_output_label.text = f"Temperature: {adt.temperature:.1f} C"
    # wait for a bit
    time.sleep(0.5)

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