tested on metro m7 (green prototype version) with max98357a i2s amplifier and the following test code: ```py import board import time import digitalio from audiobusio import I2SOut from audiocore import RawSample from microcontroller import pin from ulab import numpy as np n = np.array(np.sin(np.linspace(0, np.pi*2, 218, endpoint=False)) * 200, dtype=np.int16) print(n) r = RawSample(n, sample_rate=8000, channel_count=2) def main(): with digitalio.DigitalInOut(board.LED) as l: l.switch_to_output(True) value = False while True: with I2SOut(pin.GPIO_06, pin.GPIO_07, pin.GPIO_04) as i: time.sleep(.01) l.value = value = not value i.play(r, loop=True) print(i.playing) time.sleep(.5) i.stop() print("STOPPED") print(i.playing) time.sleep(.5) i.play(r, loop=True) print(i.playing) print("PLAY AGAIN") time.sleep(.5) time.sleep(1) ``` Only stereo, 16-bit, raw samples were tested; the sample rate is actually fixed at 48kHz in the core right now. There is more to do, but the basics work. # Conflicts: # ports/mimxrt10xx/Makefile # ports/mimxrt10xx/mpconfigport.mk
CircuitPython ============= .. image:: https://s3.amazonaws.com/adafruit-circuit-python/CircuitPython_Repo_header_logo.png |Build Status| |Doc Status| |License| |Discord| |Weblate| `circuitpython.org <https://circuitpython.org>`__ \| `Get CircuitPython <#get-circuitpython>`__ \| `Documentation <#documentation>`__ \| `Contributing <#contributing>`__ \| `Branding <#branding>`__ \| `Differences from Micropython <#differences-from-micropython>`__ \| `Project Structure <#project-structure>`__ **CircuitPython** is a *beginner friendly*, open source version of Python for tiny, inexpensive computers called microcontrollers. This package contains the "stubs", or type definitions for CircuitPython. With some advanced editors and other tools, this information can be identify TypeErrors, AttributeErrors, and other problems before you deploy your code to a device and can even help autocomplete your code. .. |Build Status| image:: https://github.com/adafruit/circuitpython/workflows/Build%20CI/badge.svg :target: https://github.com/adafruit/circuitpython/actions?query=branch%3Amain .. |Doc Status| image:: https://readthedocs.org/projects/circuitpython/badge/?version=latest :target: http://circuitpython.readthedocs.io/ .. |Discord| image:: https://img.shields.io/discord/327254708534116352.svg :target: https://adafru.it/discord .. |License| image:: https://img.shields.io/badge/License-MIT-brightgreen.svg :target: https://choosealicense.com/licenses/mit/ .. |Weblate| image:: https://hosted.weblate.org/widgets/circuitpython/-/svg-badge.svg :target: https://hosted.weblate.org/engage/circuitpython/?utm_source=widget
Languages
C
90.2%
Python
7.4%
Makefile
1.8%
Shell
0.2%