add gpio

hc

2023-12-04 f33f61bdb7ca6d5ebe7a78f9d8694b91360279ac

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# md5 from https://pypi.python.org/pypi/pillow/json, sha256 locally computed
md5 11e5e2046cf41586716a6042d89abeeb  Pillow-4.2.1.tar.gz
sha256 c724f65870e545316f9e82e4c6d608ab5aa9dd82d5185e5b2e72119378740073  Pillow-4.2.1.tar.gz