modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

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# md5 from https://pypi.python.org/pypi/flup/json, sha256 locally computed
md5 bc104a7444bfac36fc2146a356de4c11 flup-1.0.3.dev20161029.tar.gz
sha256 3dc5620b77a6a4cd0afb556626eb0ce85708e513f9c50dc5e982190e3d5f9e26 flup-1.0.3.dev20161029.tar.gz