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The IC has two active-low enable inputs (E1 and E2) and two data inputs (D1 and D2)
2 measures soil moisture levels by capacitive sensing rather than resistive sensing like other sensors on the market
The LM339 and LM339A are characterized for operation from 0°C to 70°C
you can also use this as an altimeter with ±1 meter accuracy
turning them into smart bots
CD40106 - Hex Schmitt Trigger Inverter IC Toggle Switches The IC has two active-lowCD40106 Hex Schmitt Trigger Inverter IC The CD40106 IC consists of six Schmitt Trigger inputs. Each circuit functions as an inverter with Schmitt Trigger input. The trigger switches at different points for positive and negative going signals. The difference between the positive going voltage (VP) and the negative going voltage (VN) is defined as hysteresis voltage (VH). A Schmitt trigger input means that the threshold voltage for going from a HIGH to
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