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The Proto Shield Plus on-board Potentiometer

Published : 05/03/2018 08:54:27
Categories : Proto Shield Plus


The Proto Shield Plus on-board Potentiometer


The Proto Shield Plus comes with a general-purpose potentiometer with knob. It is useful to set a desired reference voltage.

P1 terminal connects by default to Arduino analog pin A1 (by means of SJPOT, closed by default).

If your application requires a filtered reference signal, you can add by yourself the C6 capacitor (1206 SMD case).

The Proto Shield Plus Potentiometer TOP view

The Proto Shield Plus Potentiometer TOP view close up

The Proto Shield Plus Potentiometer schematic diagram


Using the potetiometer with a different Arduino analog pin


Cut SJPOT in the middle to disconnect A1 from the P1 POT terminal.

The central pin of the potentiometer connects to the two pads marked in red in the figure below

Connect one of these pads to the desired Arduino analog input pin.

The Proto Shield Plus Potentiometer BOTTOM view

The Proto Shield Plus Potentiometer BOTTOM view close up

The Proto Shield Plus Potentiometer pads


You can add a male 2.54 pitch 1x2 pin strip connector or a female 2 pins female header depending on your needs.

The Proto Shield Plus Potentiometer pad male header

The Proto Shield Plus Potentiometer pads female header


If you want to easily connect and disconnect POT from A1 pin, you can add a male 2.54 pitch 1x2 pin strip connector to JPOT pads and use a jumper to connect / disconnect A1.

The Proto Shield Plus Potentiometer JPOT closed

The Proto Shield Plus Potentiometer JPOT open

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