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How to interface MAXIM’s DS1868 digital potentiometer with a PIC microcontroller

How to interface MAXIM’s DS1868 digital potentiometer with a PIC microcontroller

Potentiometers find applications in many electrical devices. For example, a light dimmer uses a potentiometer to control the brightness of lamps. In amplifiers, they are used to control the output volume of the music, or change the bass level. In an adjustable power supply we see potentiometers to vary the output voltage and current. In

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PIC16F84A Gas Detector using GH 312 sensor

PIC16F84A Gas Detector using GH-312 sensor

Introduction This is a gas detecting circuit capable of sensing many different types of gases.  The sensor used is the GH-312 and from the datasheet it is capable of sensing gases like smoke, liquefied gas, butane and propane, Methane, alcohol,hydrogen, etc. Schematic Parts List R1                   1K resistor R2                   1K resistor P1                    100K potentiometer C1                   10uF

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