Project Files of IR / UV LED Library for Proteus: Infrared Remote and UV LEDs

IR / UV LED LIBRARY FOR PROTEUS - V1.0 (a 940 nm infrared LED that reads its remote codes and a 395 nm UV LED)
Designed by The Engineering Projects
www.TheEngineeringProjects.com

IMPORTANT LINKS
Article (read it first - pictures, step by step, every feature explained):
  https://www.theengineeringprojects.com/2026/11/ir-uv-led-library-for-proteus.html
Report a bug or suggest a feature (our forum):
  https://www.theengineeringprojects.com/forum/category/ir-uv-led-proteus-library
The demo runs on our Arduino UNO V4.0 (included) - working LEDs, RESET and a
built-in serial monitor, no Virtual Terminal to wire - its own article:
  https://www.theengineeringprojects.com/2026/10/arduino-uno-library-for-proteus-v40.html
The demo's resistors are our own (included):
  https://www.theengineeringprojects.com/2026/11/resistor-library-for-proteus.html
Its buttons are our own push buttons (included):
  https://www.theengineeringprojects.com/2026/11/push-button-library-for-proteus.html
Support us (the libraries are free):
  https://www.theengineeringprojects.com/donate

FILE STRUCTURE
IR-UV-LED-TEP-v1.0/
|-- Proteus Library Files/
|   |-- ArduinoV4TEP.LIB                              201.9 KB   TEP Arduino boards V4.0 (UNO) -> LIBRARY
|   |-- TEPBUTTON.LIB                                  20.7 KB   a part the demo uses -> LIBRARY folder
|   |-- TEPIRUV.LIB                                    12.7 KB   the library -> LIBRARY folder
|   |-- TEPRESISTOR.LIB                               306.9 KB   a part the demo uses -> LIBRARY folder
|-- Proteus Model Files/
|   |-- TEPARDUINO.DLL                                883.5 KB   the Arduino board model -> MODELS folder
|   |-- TEPBUTTON.DLL                                 274.0 KB   its model -> MODELS folder
|   |-- TEPIRUV.DLL                                   305.0 KB   the model -> MODELS folder
|   |-- TEPRESISTOR.DLL                               311.0 KB   its model -> MODELS folder
|-- Proteus Simulation/
|   |-- IR_Remote_Demo.hex                             11.1 KB   the demo firmware
|   |-- IR-UV-LED-Remote-ArduinoUnoV4.pdsprj           23.2 KB   the demo project
|   |-- TEPARDUINO.DLL                                883.5 KB   copy of the board model
|   |-- TEPBUTTON.DLL                                 274.0 KB   copy of its model
|   |-- TEPIRUV.DLL                                   305.0 KB   copy of the model
|   |-- TEPRESISTOR.DLL                               311.0 KB   copy of its model
|-- Arduino Code/
|   |-- IR_Remote_Demo/IR_Remote_Demo.ino               3.5 KB   the demo sketch (source of the .hex)
|-- README.txt                                        ~12.7 KB   this file
Total: 4.04 MB (unzipped). The C++ source code of the models is not included.

WHAT IS IT?
Two 5 mm LEDs for light you cannot (or can hardly) see, drawn at true scale on our 5 mm dome.
  * IRLED5MM940TEP: a 940 nm infrared LED, blue-grey tinted: about 1.2 V at 20 mA, 100 mA at the
    most. Its light is invisible, so the sheet hardly
    changes; the pop-up shows it to the eye (nothing) and to a phone camera (a glow).
  * It reads what it sends: the carrier's frequency and duty, the marks and spaces, and an NEC
    remote-control frame - the 9 ms leader, the 4.5 ms
    space, 32 bits LSB first (address, its inverse, command, its inverse) and the stop mark - or an
    NEC repeat code.
  * UVLED5MM395TEP: a 395 nm ultraviolet LED, water clear: about 3.3 V at 20 mA, 30 mA at the most,
    a violet glow, with ultraviolet's cautions.
  * Both: the LED junction, the glow from the current, PWM, over current and burn-out (a new part
    from the pop-up).
The body is drawn as on the real part and to true scale against our Arduino.
The TEP signature and the pop-up are TEP additions.

TWO DEVICES (search "IRLED" or "UVLED" in Pick Devices):
  IRLED5MM940TEP   "IR LED 5 mm 940 nm V1.0" in TEPIRUV.LIB (Optoelectronics > LEDs), prefix D,
  model TEPIRUV.DLL. Pins A (long leg) and K.
  UVLED5MM395TEP   "UV LED 5 mm 395 nm V1.0" in TEPIRUV.LIB (Optoelectronics > LEDs), prefix D,
  model TEPIRUV.DLL. Pins A and K.

THE POP-UP
Click the part at Run. Tabs:
    LED        IR: the last frame (NEC FRAME, NEC REPEAT, ON, OFF), the LED to the eye and to a
    camera, the last frame's marks on a time line with
               its decoded address and command, and eight live values. UV: the state, the LED drawn
               large, the right series resistor for
               3.3 to 12 V, and eight live values. The toolbar: New part.
    Graphs     the live values over the last 2, 6 or 15 s. Live / Freeze.
    Event log  every change and warning; filters All / Changes / Warnings, Pause, Clear
    Check      what the part is doing and what to look at, each with a verdict (green = fine, amber
    = check, red = wrong)
    Settings   theme, text size, open at Run, window size
    Help       report a bug, suggest a feature, article, updates, donate, forum; Copy diagnostics
    for a bug report

TEST STATUS
V1.0: verified in Proteus 8.5 on 31 Oct 2026 (the demo project as shipped: an A4 sheet, an Arduino UNO V4.0).
What the runs showed (the model's own numbers and the sketch's monitor):
  * The project loads and starts cleanly; both LEDs are off.
  * Each tap on SW1 sent an NEC frame on the IR LED, read back by its pop-up: address 0x00 with
    commands 0x45 (POWER), 0x46 (VOL+) and 0x15 (VOL-),
    every inverse checked; leader about 9.0 ms + 4.5 ms; carrier 39.0 kHz at 32 % duty; 31.3 mA peak
    through 100 ohm at 1.24 V.
  * A tap is long enough for one NEC repeat code; holding SW1 sent a repeat code every 108 ms, each
    one recognised (9 ms + 2.25 ms + a stop mark).
  * Paused while it sent, the pop-up showed the LED dark to the eye and glowing to a phone camera.
  * SW2 switched the UV LED on: 11.0 mA through 150 ohm at 3.13 V, a violet glow.
  * The pop-up: LED, Graphs, Event log, Check - all four pages followed the run, for both LEDs.

INSTALLATION (about 2 minutes)
1. Close Proteus. Extract the WHOLE ZIP to a normal folder (e.g. Desktop).
2. Copy everything in "Proteus Library Files" (TEPIRUV.LIB, TEPRESISTOR.LIB, TEPBUTTON.LIB and our
Arduino library V4.0, ArduinoV4TEP.LIB, with the ARDUINO UNO V4.0 used by the demo) to the LIBRARY
folder of Proteus, for example:
     C:\Program Files (x86)\Labcenter Electronics\Proteus 8 Professional\LIBRARY
   (use the folder that already holds Proteus's own .LIB files).
3. Copy TEPIRUV.DLL, TEPRESISTOR.DLL, TEPBUTTON.DLL and TEPARDUINO.DLL from "Proteus Model Files" to
the MODELS folder (...\Proteus 8 Professional\MODELS).
4. Delete TEPIRUV.IDX from the LIBRARY folder if it is there (Proteus makes a new index).
5. Start Proteus. In Pick Devices (P) search "IRLED or UVLED".

RUN THE DEMO
"Proteus Simulation\IR-UV-LED-Remote-ArduinoUnoV4.pdsprj" (an A4 sheet) - keep the .hex file and the
DLLs beside the project.
  ARD1:   Arduino UNO V4.0 running IR_Remote_Demo.hex, its serial monitor built in (window "TEP
  Arduino UNO - ARD1").
  D1, R1: the IR LED on D3 through 100 ohm.   D2, R2: the UV LED on D9 through 150 ohm (our
  resistors).
  SW1, SW2: our push buttons from D4 and D5 to GND (INPUT_PULLUP).
  1. Press Run. Open D1's pop-up.
  2. Click SW1 (or Press on its pop-up): an NEC code - POWER, VOL+, VOL- in turn. Hold it (Hold
  down) for repeat codes.
  3. Click SW2: the UV LED on or off.
Closed the monitor? Click the UNO's USB port.

WIRING (the same in Proteus and on a real board)
  pin - 100 ohm - IR LED - GND   : about 31 mA, a pin's safe most; a transistor gives an IR LED its
  full 100 mA and range
  pin - 150 ohm - UV LED - GND   : about 11 mA
REAL HARDWARE:
 * A remote's carrier is 36 to 40 kHz (38 kHz is common); the receiver ignores steady light and
   answers only to that carrier.
 * Check an IR LED with a phone camera: the eye sees nothing.
 * For range, drive an IR LED with a transistor at 100 mA or more, in short bursts.
 * Never look into a lit UV LED from close by; it makes paper, cloth and some inks glow.

THE DEMO SKETCH ON THE SERIAL MONITOR (IR_Remote_Demo V1.0, 9600 baud)
There are no commands. SW1 sends a code (and repeat codes while held), SW2 switches the UV LED; the
sketch prints each.
EXPECTED MONITOR OUTPUT
  IR remote and UV LED - The Engineering Projects
  SW1 sends a code, SW2 switches the UV LED
  Sent NEC 0x00 0x45 (POWER)
    held: 1 repeat code

PROPERTIES (double-click the part > Edit Properties)
  Forward voltage at 20 mA, V      1.2 (IR) or 3.3 (UV)
  Maximum current, mA              100 (IR) or 30 (UV)
Every run starts again from the properties.

LINKS.INI (OPTIONAL)
The Help page cards of the pop-up open web pages. To point them somewhere else without a new DLL,
put a text file named links.ini next to TEPIRUV.DLL with lines KEY=URL, for example:
  ARTICLE=https://www.theengineeringprojects.com/...
Keys: WEBSITE, FORUM, BUG_REPORT, FEATURE_REQUEST, ARTICLE, USER_GUIDE,
UPDATE_CHECK, DONATE. Only http:// and https:// links are used; lines starting
with # are comments.

TROUBLESHOOTING
* The IR LED seems dead: it is invisible - open its pop-up, or look through a phone camera.
* No NEC frame in the pop-up: the carrier or the timing is off, or the frame was cut short (the log
  names a burst that was not NEC).
* The code reads wrong: the bits go LSB first; the command's inverse must make 0xFF with it.
* The UV LED is dim: it needs about 3.3 V; check the resistor for that Vf.
* The part is not simulated: TEPIRUV.DLL is missing from MODELS and from the project folder. No UNO
  / no monitor window: TEPARDUINO.DLL is missing, or click the UNO's USB port.

BUG REPORTS AND FEATURE REQUESTS
Please post them in our forum with a screenshot, the Serial Monitor text, the
simulation log and the pop-up's Copy diagnostics text:
  https://www.theengineeringprojects.com/forum/category/ir-uv-led-proteus-library

SUPPORT US
This library is free. If it saves you time, please support our work:
  https://www.theengineeringprojects.com/donate

WEBSITE
  https://www.theengineeringprojects.com/

LICENCES AND THIRD-PARTY NOTES
* The model (TEPIRUV.DLL), the symbols and artwork, the other parts of ours in the demo and the
  Arduino Library V4.0 (ArduinoV4TEP.LIB / TEPARDUINO.DLL, with its built-in TEP Serial Monitor
  Advance) are made by The Engineering Projects. The models use only standard Windows libraries; no
  Visual C++ redistributable is needed.
  The C++ source code is not included.
* Arduino UNO V4.0 (ArduinoV4TEP.LIB / TEPARDUINO.DLL, our Arduino Library V4.0 - its
  microcontroller is Proteus's own AVR model): The Engineering Projects,
  https://www.theengineeringprojects.com/2026/10/arduino-uno-library-for-proteus-v40.html
* The .hex file is built from the demo sketch and the Arduino AVR core 1.8.6, which includes
  LGPL-licensed code; its source code is available at
  https://github.com/arduino/ArduinoCore-avr/tree/1.8.6
* Proteus is a product of Labcenter Electronics and is not included. Arduino is a trademark of Arduino SA.
  This library is not made or endorsed by Arduino or Labcenter.

REBUILDING THE FIRMWARE (OPTIONAL)
The HEX file is supplied; Arduino IDE is not needed to run the demo. To edit the sketch, open
Arduino Code\IR_Remote_Demo\IR_Remote_Demo.ino, select Arduino Uno and use Sketch > Export Compiled
Binary. Replace the simulation's .hex with the exported HEX. The sketch needs 4,026 bytes of flash
and 229 bytes of RAM.

MODEL SCOPE AND LIMITS
Modelled: the LED junction, the glow, PWM, over current and burn-out; for the IR LED the carrier's
frequency and duty, marks and spaces, NEC frames
and repeat codes, the camera's view.
Not modelled: the light reaching another part (an IR receiver), the beam angle, other remote
protocols (shown as bursts).

VERSION
TEP IR / UV LED library V1.0 (Nov 2026). Devices IRLED5MM940TEP and UVLED5MM395TEP (TEPIRUV.LIB /
TEPIRUV.DLL). Demo sketch IR_Remote_Demo V1.0. Demo board: ARDUINO UNO V4.0 (TEP Arduino Library
V4.0) with its built-in serial monitor.