Analog to Digital Signal

An LM393 comparator on a TinkerBlock board: plug an analog block into the IN socket, set a threshold with the blue knob, and DIG tells your board whether the block's voltage is above or below it. The block's own voltage passes through on ANA, and a slide switch printed H and L turns the answer over.

Switch

H or LHIGH above or below the knob

Inputs work to

1.8V from 3.3 V

Hysteresis

Noneso a slow input chatters

VCC

3.3or 5 V, to match your board

Turn it over and see both rows: IN takes an analog block's header, OUT gives your board GND, VCC, the comparator's DIGITAL and the input's ANALOG. The blue knob sets the threshold.

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