# Sample and Hold
Component Type: Processor (Subcategory: Basic Math)
This component provides a sample-and-hold function for up to 4 input signals. This can be useful for storing a particular sensor values (e.g. for sensor calibration purpose).
SampleAndHold plugin
# Input Port Description
- in1 - in4 [double]: four input ports for double values to be captured on demand.
# Output Port Description
- out1 - out4 [double]: last captured values.
# Event Listener Description
- sampleNow: When an event comes in, the signal values of the input ports are captured and sent to the output ports.
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