I am supplying 5 volts from arduino nano to four pressure sensors. Do I need capacitors in parallel with 5 volts supply to maintain 5 volts across each pressure sensor? If yes, what should be the capacitance if I use ceramic capacitors?
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How much current do the sensors take ?
Please post your schematic here to make it easy to access
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I assume that the components labeled FSRx are Force Sensitive Resistors. Is that correct? What is the value of the FSR?
Those require very little current. With the 100K load resistors (0.05mA) so no bulk capacitance required to maintain voltage. However I would recommend that each FSR have a 0.1uF ceramic cap from its input to ground to bypass noise and to lower the input impedance. The input impedance to an analog input is recommended to be less than 10K, the cap will help to accomplish that.
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Yes, FSRx are force sensitive resistors. Am I attaching the capacitors correctly, like you advised 'input to ground' in the schematic? Please see the datasheets in the jpgs.
Since the ground resistance is 100k, a capacitor would not do much for you.
A ceramic 100nF capacitor across the 100k would be recommend.
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No, do as @LarryD suggests and place the cap across the 100K load resistor. You have it Vcc (5V) to ground.
bypass capacitor connection
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