Lighting Example

5min

The following example illustrates how to implement a basic double pole, and double throw switch arrangement.
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Lighting Controller 
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Program Purpose
Setting up a lighting system for users to switch on/off the light whether they are at the bottom or the top of the stairs.
Hardware
Device
Role
XSw1
XSw1 turns ON when the bottom switch is turned to the right
XSw2
XSw2 turns ON when the top switch is turned to the right.
YLight
Stair Light
Software
The following program example is easily created using LD Micro.
LD MIc
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I/O
Role
RB0
Switch 1
RB1
Switch 2
RD0
Light
Program Description
If the states of the bottom switch and the top switch are the same, both ON or OFF, the light will be ON. If different, one is ON and the other is OFF, the light will be OFF.

When the light is OFF, users can turn on the light by changing the state of either top switch at the bottom switch of the stairs. Likewise, when the light is ON, users can turn off the light by changing the state of one of the two switches..
All code samples available on GitHub : https://github.com/HavenTech/LDMICRO-Examples---PIC16F887﻿
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Device	Role
XSw1	XSw1 turns ON when the bottom switch is turned to the right
XSw2	XSw2 turns ON when the top switch is turned to the right.
YLight	Stair Light

I/O	Role
RB0	Switch 1
RB1	Switch 2
RD0	Light

Updated 12 Dec 2024

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