Ultrasonic Unit

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Ultrasonic

Micropython Example:

 1# SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD
 2#
 3# SPDX-License-Identifier: MIT
 4
 5import os, sys, io
 6import M5
 7from M5 import *
 8from hardware import I2C
 9from hardware import Pin
10from unit import UltrasoundI2CUnit
11
12
13label0 = None
14i2c0 = None
15ultrasonic_0 = None
16
17
18def setup():
19    global label0, i2c0, ultrasonic_0
20
21    M5.begin()
22    Widgets.fillScreen(0x222222)
23    label0 = Widgets.Label("label0", 132, 109, 1.0, 0xFFFFFF, 0x222222, Widgets.FONTS.DejaVu18)
24
25    i2c0 = I2C(0, scl=Pin(22), sda=Pin(21), freq=100000)
26    ultrasonic_0 = UltrasoundI2CUnit(i2c0)
27
28
29def loop():
30    global label0, i2c0, ultrasonic_0
31    M5.update()
32    label0.setText(str(ultrasonic_0.get_target_distance(1)))
33
34
35if __name__ == "__main__":
36    try:
37        setup()
38        while True:
39            loop()
40    except (Exception, KeyboardInterrupt) as e:
41        try:
42            from utility import print_error_msg
43
44            print_error_msg(e)
45        except ImportError:
46            print("please update to latest firmware")

UIFLOW2 Example:

example.png

ultrasonic_core_example.m5f2

class ULTRASONIC_I2C

Constructors

class ULTRASONIC_I2C(PORT)

Create a ULTRASONIC I2C object.

The parameters is:

  • PORT Define an i2c port.

UIFLOW2:

init.png

Methods

ULTRASONIC_I2C.get_target_distance()

Acquire transmitting distance

UIFLOW2:

get_target_distance.png