Just a thought. Not a driver but very nice and awesome.
http://www.fsb.de/fr/en/products/catalogue/model/group/isis_f_-_door_pulls_with_fingerscan/product/isis_f_-_door_pulls_with_fingerscan/article/group/isis_f_-_door_pulls_with_fingerscan/overview.html?s=EC9E5C095F75
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