Basic micropython library to read the distance from an ultrasonic sensor US-100 in serial mode ##############################################################################################

This library allows the micro:bit to read the distance from an ultrasonic sensor US-100 (Y401)).

It uses the serial port to communicate with the device and to retrieve both the distance and temperature. By default it assumes pin15 connected to trigger/tx and pin14 connected to echo/rx

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Main features

• Get the distance in mm from the sonar to an object.
• Get the temperture measured by the sensor.
• Sample program.

Library usage

distance_mm() +++++++++++++++++++++++

Get the distance in mm.

.. code-block:: python

from us100 import US100 from microbit import sleep

sonar=US100() while True: print('%.1f' % (sonar.distance_mm()/10)) sleep(1000)

temperature() +++++++++++++++++++++++

Get the temperature from the sonar

.. code-block:: python

from us100 import US100 from microbit import sleep

sonar=US100() while True: print('%i' % sonar.temperature) sleep(1000)