With CapSense, it is not possible to differentiate between stream of liquid and a finger touch.
CapSense can work (detect touch) with only droplets of water using shield electrode. It is not possible to detect touch with a stream of liquid. Guard sensor when triggered will disable all the sensor scanning to prevent false triggering. It can not be used to detect finger touch with water stream.
Please let us know your use case so that we can see if we can suggest you any alternative.
Thanks for response.
Our requirement is that, touch pads shouldn’t see water stream as valid finger touch and at the same time touch pad should sense finger touch as valid touch when there is stream of water over the touch pads.
Our assembly will look like:
Two Touch pads on PCB -> Conductive disk (optional)-> 2mm thick over lay->Touch input
Please suggest suitable solutions.
Govinda Rao Koyala
Staff Engineer – Electronics
Kitchen & Bath Americas
Kohler Co. - NPD
900 Highland Dr - MS 078
Kohler WI 53044.
920-457-4441, Ext. 76196
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