modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

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# md5 from https://pypi.python.org/pypi/python-dateutil/json, sha256 locally computed
md5    6e38f91e8c94c15a79ce22768dfeca87  python-dateutil-2.6.0.tar.gz
sha256    62a2f8df3d66f878373fd0072eacf4ee52194ba302e00082828e0d263b0418d2  python-dateutil-2.6.0.tar.gz