Infrared sensitive lights isl
This presentation is the property of its rightful owner.
Sponsored Links
1 / 11

Infrared Sensitive Lights (ISL) PowerPoint PPT Presentation


  • 69 Views
  • Uploaded on
  • Presentation posted in: General

Infrared Sensitive Lights (ISL). Miguel Contreras IME 458 – Advanced Microelectronics and Electronic Packaging Spring 2014. Specifications/Design Overview. General Specifications Through hole components RoHS compliant Physical Dimensions 4 x 8 inches (10.16 x 20.32 cm)

Download Presentation

Infrared Sensitive Lights (ISL)

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Infrared sensitive lights isl

Infrared Sensitive Lights (ISL)

Miguel Contreras

IME 458 – Advanced Microelectronics and Electronic Packaging

Spring 2014


Specifications design overview

Specifications/Design Overview

  • General Specifications

    • Through hole components

    • RoHS compliant

  • Physical Dimensions

    • 4 x 8 inches (10.16 x 20.32 cm)

    • Thickness: 1/16” (1.6mm)

    • Mounting holes: 0.25” x 0.25” each corner

  • LEDs & Sensors

    • 8 LEDs Ultra-bright, 10mm OD

      • Wide viewing angle

    • LED color: Blue

    • 8 Near-infrared proximity detector

      • Phototransistor + IR LED

    • Sensor range: 10cm, in dark room

  • Microcontroller and Interfaces

    • ATmega 164, pre-programmed for stand alone mode

    • MCU socket: 40-pin socket

    • Programming interface: Standard 6-pin AVR ISP (SPI)

    • User input: Single tactile button switch

    • Clock source: 8MHz internal RC

  • Power Requirements

    • Input voltage: 5V DC, regulated

    • Current requirements: 200mA per panel

    • Idle current 50mA

    • Current rating of power switch: 4A

    • Input power source 2.5 x 5.5 mm jack


Bill of material

Bill Of Material

Total Cost:

~ $32.00

Total Components:

- 65 through hole


Prototype debugging

Prototype/Debugging

  • Prototype Implementation

    • One LED sequence = proof of concept for all 8

  • Prototype  First attempt failed

  • Issues found:

    • Placement of LEDs

    • Distance between sensors

  • Key takeaways:

    • Phototransistor and IR LED placement in layout

    • Added decoupling capacitors


Isl schematic

Decoupling Capacitors

Phototransistor

Ultra-bright LED

Infrared LED

ISL Schematic


Pcb layout

PCB Layout


Fabricated pcb

Fabricated PCB

Unpopulated Board


Fabricated pcb1

Fabricated PCB

Populated Board


Isl modes light sensitivity

ISL Modes + Light Sensitivity

Eight standard response functions

  • 0. Gentle fade

  • 1. Slow fade

  • 2. Quick fade

  • 3. Ripple

  • 4. Sparkle

  • 5.“Heating” with fade

  • 6. Shadow mode

  • 7.Trigger and very slow fade

    (Program 0 is indicated by LED D0, and so on.)

Four built in levels of sensitivity

Hold the button for about ten seconds until it enters a different mode.


Video

https://www.youtube.com/watch?v=gt-_jXnjraQ

Video


Questions

Questions?


  • Login