Page 247 - Electronic Mechanic - TP - Volume - 2

ELECTRONICS MECHANIC - CITS

EXERCISE 182: Wire analog input and output devices to

the respective modules

Objectives

At the end of this exercise you shall be able to
• to demonstrate wire analog input and output devices to the respective modules.
Requirements

Tools/Materials

• Combination Plier (250mm) - 1 No. • temperature sensors - 1 No.
• Screw Driver set (150mm) - 1 No. • light sensors - 1 No.
• Wire Stripper - 1 No. • Analog Voltage Output Modules - 1 No.
• Potentiometers - 1 No. • Digital-to-Analog Converters - 1 No.
• Sensors - 1 No.
Procedure

To wire analog input and output devices to their respective modules, you’ll need to follow the specific wiring
instructions provided by the manufacturer of your modules and devices. However, I can provide you with a
general guideline on how to wire analog devices to modules commonly used in electronic circuits.

Analog Input Devices
1 Potentiometers: Potentiometers are variable resistors commonly used as analog input devices. They have
three terminals - two outer terminals and one wiper terminal. Wire one outer terminal to the ground (GND) of
your module and the other outer terminal to the power supply voltage (Vcc) of your module. Then connect the
wiper terminal to the analog input (usually labeled A0, A1, etc.) of your module.
2 Sensors (e.g., temperature sensors, light sensors): Most analog sensors have three terminals - power
supply, ground, and signal output. Connect the power supply terminal to the Vcc of your module, the ground
terminal to the ground (GND) of your module, and the signal output terminal to the analog input of your module.

Discrete devices are inputs and outputs that have only two states: on and off. In comparison, analog devices
represent physical quantities that can have an infinite number of values. Typical analog inputs and outputs vary
from 0 to 20 milliamps, 4 to 20 milliamps, or 0 to 10 volts.

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