Project Files of Arduino Nano RP2040 Connect Library for Proteus: TCS34725, Servo

ARDUINO NANO RP2040 CONNECT LIBRARY FOR PROTEUS - V1.0 (YOUR SKETCH, WIFININA, A COLOUR SORTER)
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/2026/10/arduino-nano-rp2040-connect-library-for-proteus.html
Report a bug or suggest a feature (our forum):
  https://www.theengineeringprojects.com/forum/category/arduino-nano-rp2040-connect-proteus-library
The demo's parts are our libraries (included) - their articles:
  TCS34725:
    https://www.theengineeringprojects.com/2026/09/tcs34725-proteus-library.html
  SG90 servo (with the PCA9685 library):
    https://www.theengineeringprojects.com/2026/10/pca9685-servo-driver-library-for-proteus-v1-0.html
  Laptop and phone:
    https://www.theengineeringprojects.com/2026/10/laptop-wifi-monitor-library-for-proteus.html
    https://www.theengineeringprojects.com/2026/10/mobile-wifi-monitor-library-for-proteus.html
The other RP2040 Wi-Fi board on the same board package, our Raspberry Pi Pico W:
  https://www.theengineeringprojects.com/2026/10/raspberry-pi-pico-w-library-for-proteus.html
Support us (the libraries are free):
  https://www.theengineeringprojects.com/donate

FILE STRUCTURE
Arduino-Nano-RP2040-Connect-TEP-v1.0/
|-- Proteus Library Files/
|   |-- TEPLAPTOP.LIB                                    39.5 KB   the laptop (demo), to LIBRARY
|   |-- TEPMOBILE.LIB                                    13.1 KB   the phone (demo), to LIBRARY
|   |-- TEPNANORP2040.LIB                                27.1 KB   the Arduino Nano RP2040 Connect, to LIBRARY
|   |-- TEPPCA9685.LIB                                  129.4 KB   the SG90 servo (demo), to LIBRARY
|   |-- TEPTCS34725.LIB                                 156.4 KB   the TCS34725 (demo), to LIBRARY
|-- Proteus Model Files/
|   |-- TEPNET.DLL                                       2.45 MB   the board + monitors + network, to MODELS
|   |-- TEPPCA9685.DLL                                  323.0 KB   the SG90 servo, to MODELS
|   |-- TEPTCS34725.DLL                                 537.0 KB   the TCS34725, to MODELS
|-- Arduino Code/
|   |-- RP2040Connect_Color_Sorter/RP2040Connect_Color_Sorter.ino    6.2 KB   the demo sketch
|   |-- TEP Boards for Proteus/hardware/                676.7 KB   the Arduino IDE add-on 1.21.0 (162 files)
|-- Proteus Simulation/
|   |-- Nano-RP2040-Connect-Color-Sorter.pdsprj          29.9 KB   the demo: a colour sorter
|   |-- RP2040Connect_Color_Sorter.hex                   54.6 KB   the demo sketch (U1)
|   |-- TEPNET.DLL                                       2.45 MB   copy of the model
|   |-- TEPPCA9685.DLL                                  323.0 KB   copy of the model
|   |-- TEPTCS34725.DLL                                 537.0 KB   copy of the model
|-- README.txt                                          ~13.6 KB   this file
Total: 7.70 MB (unzipped). The source code of the models is not included.

WHAT IS IT?
Proteus 8 has no Raspberry Pi RP2040 or u-blox NINA-W102 model, so this is NOT a real RP2040. It is the Arduino Nano
RP2040 Connect - the Nano's 45 x 18 mm board with its 2 x 15 castellated pins, the RP2040, its 16 MB flash, the
NINA-W102 Wi-Fi module with its antenna, the LSM6DSOX IMU, micro-USB, RESET and the ON and L LEDs - that runs YOUR Nano
RP2040 Connect sketch in Proteus:
  * You write a normal Nano RP2040 Connect sketch (D0 .. D13, A0 .. A7, LED_BUILTIN, Serial, Serial1, Wire, SPI, Servo,
    WiFiNINA with WiFi.begin, WiFiServer, WiFiClient, WiFiUDP, WiFi.getTime ...) and compile it in the Arduino IDE with
    our board package "TEP Boards for Proteus" 1.21.0 (in Arduino Code - see INSTALLATION).
  * Inside the board, Proteus's own ATmega2560 model runs the compiled sketch at 16 MHz; our model (TEPNET.DLL) wraps
    it: the Nano's pins, 3.3 V logic, A0 .. A7 (0 .. 1023 for 0 .. 3.3 V), the RESET button, the L LED on D13, the ON
    LED, the built-in serial monitor on the USB (Serial) and the Wi-Fi radio (the NINA-W102's job on the real board).
  * Wi-Fi: a virtual router (TEP-WiFi, password 12345678) with DHCP (192.168.1.101 for U1), TCP and UDP between all the
    TEP Wi-Fi parts in the design (boards, modules, the Laptop and Mobile WiFi Monitors).
TEP additions: the antenna colours (green on Wi-Fi, orange sending, cyan receiving), the PANEL pad (or the NINA module)
opens the board's panel, the micro-USB opens the serial monitor.
Limits (say them before you start): 16 MHz, 8 KB of RAM (the real RP2040: two cores at 133 MHz, 264 KB), int is 16 bits
(the real board: 32 bits - use long for big numbers), no second core, no PIO, no Bluetooth; the on-board IMU (LSM6DSOX),
the microphone (MP34DT05) and the NINA's RGB LED are drawn, not modelled. See MODEL SCOPE AND LIMITS.

ONE DEVICE (search "RP2040 CONNECT" in Pick Devices):
  ARDUINO NANO RP2040 CONNECT  "Arduino Nano RP2040 Connect" V1.0 (Microprocessor ICs > Arduino Wi-Fi Boards), prefix U,
  model TEPNET.DLL. The panel (a TEP pop-up window; the PANEL pad opens it): Wi-Fi (a phone: OPEN NANO PAGE, the
  router's list), Pins (every pin live), Test, Settings, Help. The serial monitor (115200 baud) has Monitor, Plotter and
  Board tabs (the Board tab: the ON and L LEDs, the RESET key, every pin). Like every TEP window it has no Windows title
  bar.
The same TEPNET.DLL also runs our other Wi-Fi boards and the Laptop / Mobile WiFi Monitors; it replaces any older
TEPNET.DLL (keep only this newest one in MODELS).

TEST STATUS
V1.0: verified in Proteus 8.5 on 26 Oct 2026 with the demo project as shipped. What the Proteus run showed:
* Nano-RP2040-Connect-Color-Sorter: the monitor printed "TCS34725 ready", "Connecting to TEP-WiFi" and "Sorter page:
  http://192.168.1.101/", then "Item #1: RED (R 80 % G 12 % B 6 %) - chute to 30 degrees"; the antenna green on Wi-Fi;
  the board's panel: on TEP-WiFi at 192.168.1.101.
* The laptop (192.168.1.21) opened http://192.168.1.101/json and the phone (192.168.1.41) http://192.168.1.101/ (HTTP
  200) with the last item, its colour shares and the counts.
* GREEN on the TCS34725's pop-up: "Item #2: GREEN (R 0 % G 100 % B 0 %) - chute to 90 degrees" - the ON and L LEDs lit,
  the servo at 90 degrees; BLUE: item #3, 150 degrees; YELLOW: "Item #4: OTHER (R 50 % G 50 % B 0 %) - chute to 180
  degrees"; the laptop's JSON: "items":4, one of each colour.
* RESET on the phone: "Counts reset (the web page)", the counts back to zero.
* About 27 s of simulation, no errors, with the pop-up, the panel, the monitor and both tools open.

INSTALLATION (about 3 minutes)
1. Close Proteus. Extract the WHOLE ZIP to a normal folder (e.g. Desktop).
2. Copy everything in "Proteus Library Files" to the LIBRARY folder of Proteus, for example:
     C:\Program Files (x86)\Labcenter Electronics\Proteus 8 Professional\LIBRARY
   (on some PCs: C:\ProgramData\Labcenter Electronics\Proteus 8 Professional\LIBRARY). TEPNANORP2040.LIB is the board;
   the others are the demo's parts: TEPTCS34725.LIB, TEPPCA9685.LIB (the SG90 servo), TEPLAPTOP.LIB and TEPMOBILE.LIB.
3. Copy the DLLs from "Proteus Model Files" (TEPNET.DLL, TEPTCS34725.DLL, TEPPCA9685.DLL) to the MODELS folder
   (...\Proteus 8 Professional\MODELS) - replace an older TEPNET.DLL (this one is the first that knows the Nano RP2040
   Connect).
4. Delete TEPNANORP2040.IDX from the LIBRARY folder if it is there.
5. The Arduino IDE (only to compile your own sketches - the demo has its HEX file): copy the folder
   "Arduino Code\TEP Boards for Proteus\hardware" into your sketchbook folder (normally Documents\Arduino), so that
   Documents\Arduino\hardware\tep\avr\boards.txt exists (replace an older copy); restart the IDE. The Arduino AVR Boards
   platform must be installed (it comes with IDE 1.8.x; in IDE 2.x install "Arduino AVR Boards" from the Boards Manager
   once). Tools > Board > TEP Boards for Proteus > Arduino Nano RP2040 Connect (TEP Proteus).
6. Start Proteus. In Pick Devices (P) search "RP2040 CONNECT".

RUN THE DEMO
Keep the .hex file and the DLLs beside the project in "Proteus Simulation".
Nano-RP2040-Connect-Color-Sorter.pdsprj - U1 the Nano RP2040 Connect (RP2040Connect_Color_Sorter.hex) is a colour
sorter: U2 = the TCS34725 colour sensor on I2C (SDA A4, SCL A5) looks at the item and SERVO1 = an SG90 servo on D9 turns
the chute to the item's bin. PC1 the Laptop WiFi Monitor opens http://192.168.1.101/json, MOB1 the Mobile WiFi Monitor
the page http://192.168.1.101/. The TCS34725 is the Advance version: it opens its pop-up window at Run.
Press Run. The board joins TEP-WiFi; the sensor sees a red item: item #1 RED, the chute turns to 30 degrees. On the
TCS34725's pop-up click GREEN: item #2, the chute to 90 degrees, the L LED flashes for a second. BLUE: 150 degrees;
YELLOW (no colour over 55 %): OTHER, 180 degrees. RESET on the phone clears the counts. The sketch names the colour from
the red, green and blue shares of the light: RED, GREEN or BLUE when one share is over 55 %, else OTHER; every change of
colour is a new item.
The supplies: in the demo the sensor's VIN and the servo's V+ are on labels named VCC - Proteus' power rail; their
models read the supply as a digital level, which the board's 3.3V pin (an analog source) does not give them. On a real
board the TCS34725 sits on the 3.3V pin and the SG90 on 5 V (VUSB or a separate supply).
Closed a window? The micro-USB of the board opens the monitor, the PANEL pad the panel. The monitor (115200) prints one
line per item and takes STATUS and RESET.

THE PINS (the label on the board, what it can do in the simulation)
  RX0 / TX1          D0 / D1: Serial1 (not the USB), GPIO
  D2 .. D13          GPIO, interrupt, analogWrite (PWM on any pin through the board model), Servo
  D10 .. D13         also SPI SS / MOSI / MISO / SCK; D13 is also the L LED
  A0 .. A7           analogRead 0 .. 1023 for 0 .. 3.3 V; A4 / A5 Wire SDA / SCL (on the real board A6 / A7 are analog
  only) 3.3V / VUSB        3.3 V (the board's logic) and 5 V (the USB's)
  GND, RST           ground; RST LOW holds the board in reset
  AREF, REC, VIN     drawn, not modelled (REC: the RP2040's boot mode)
Serial is the USB (the board's monitor), not D0 / D1. The pins are 3.3 V logic.

PROPERTIES (double-click the board > Edit Properties)
  PROGRAM   the sketch's HEX (Arduino IDE: Sketch > Export Compiled Binary with Arduino Nano RP2040 Connect (TEP
  Proteus)) WIFISSID  the router in range (default TEP-WiFi);  WIFIPASS  its password (default 12345678)
  MONITOR   YES = the built-in serial monitor on the USB (Serial);  BAUD  its speed (115200, or AUTO)
  AUTOOPEN  YES = the monitor window opens at Run (the demo: YES)
  TIME      the clock WiFi.getTime() gives the sketch: PC (the PC's clock) or YYYY-MM-DD HH:MM:SS in UTC
The IP address follows the part's number: U1 192.168.1.101, U2 .102 ... One Nano RP2040 Connect per design (its USB
serial lines are hidden pins, and Proteus joins hidden pins of the same name across parts).

TROUBLESHOOTING
* Nothing happens at Run: the HEX was not built with TEP Boards for Proteus - select Arduino Nano RP2040 Connect (TEP
  Proteus) and export the binary again.
* "TCS34725 NOT FOUND": SDA on A4, SCL on A5; the sensor's VIN on the power rail (VCC).
* The servo does not move: its SIG on D9, V+ on the power rail; chute.attach(9, 500, 2500).
* The board stays on "Not joined yet": the sketch's SSID / password differ from WIFISSID / WIFIPASS.
* An integer goes wrong above 32767: int is 16 bits on the hidden AVR - use long.
* The page shows old values: tap REFRESH (the monitors do not reload by themselves).

BUG REPORTS AND FEATURE REQUESTS
Please post them in our forum with a screenshot and the Serial Monitor text:
  https://www.theengineeringprojects.com/forum/category/arduino-nano-rp2040-connect-proteus-library

LICENCES AND THIRD-PARTY NOTES
* The board model and the Wi-Fi network (TEPNET.DLL), the symbols and artwork (TEPNANORP2040.LIB, TEPLAPTOP.LIB,
  TEPMOBILE.LIB) and the part models (TEPTCS34725, TEPPCA9685 .LIB / .DLL) are made by The Engineering Projects. The
  board's processor is Proteus's own ATmega2560 model. The source code of the models is not included.
* TEP Boards for Proteus (Arduino Code): its core, the variants and the EEPROM, SPI and Wire libraries are modified
  copies of the Arduino AVR core 1.8.6 - GNU Lesser General Public License 2.1 (LGPL 2.1, the text:
  LICENSE-LGPL-2.1.txt); its WiFi, WiFiNINA, Servo and the other libraries and our core files are MIT (LICENSE-MIT.txt).
* The demo sketch uses Adafruit's TCS34725 (BSD) with BusIO (MIT) - install them in the Arduino IDE (Library Manager) to
  compile it; the .hex is included.
* Proteus is a product of Labcenter Electronics and is not included. Arduino and Nano are trademarks of Arduino S.r.l.;
  RP2040 is a name of Raspberry Pi Ltd, NINA-W102 of u-blox. This library is not made or endorsed by them or by
  Labcenter.

REBUILDING THE FIRMWARE (OPTIONAL)
The HEX file is supplied. Install TEP Boards for Proteus (INSTALLATION step 5) and the libraries above, open Arduino
Code\RP2040Connect_Color_Sorter, select Arduino Nano RP2040 Connect (TEP Proteus) and use Sketch > Export Compiled
Binary. For a real Nano RP2040 Connect install "Arduino Mbed OS Nano Boards" in the Boards Manager and the WiFiNINA
library, select "Arduino Nano RP2040 Connect" and upload - the same sketch.

MODEL SCOPE AND LIMITS
Modelled: the Nano RP2040 Connect's header pins on a hidden ATmega2560 (Proteus's AVR model, 16 MHz, 3.3 V); digital
I/O, analogRead (A0 .. A7) 0 .. 1023 for 0 .. 3.3 V, PWM (analogWrite), Servo and attachInterrupt on any pin through the
board model; the RESET button, the L LED on D13, the ON LED; Serial (the USB, the board's monitor), Serial1 on D0 / D1,
Wire on A4 / A5 and SPI on D10 .. D13 (the AVR's hardware); WiFiNINA station mode, DHCP, TCP, UDP and WiFi.getTime; the
other TEP Wi-Fi parts on the same network.
Not modelled: the RP2040 itself (two Cortex-M0+ cores at 133 MHz, 264 KB of RAM, PIO, 32-bit int), the 16 MB flash, the
LSM6DSOX IMU, the MP34DT05 microphone, the NINA-W102 as a processor and its Bluetooth and RGB LED, AREF, REC and VIN.
The simulation runs below real time.

VERSION
TEP Arduino Nano RP2040 Connect library V1.0 (Oct 2026). Device ARDUINO NANO RP2040 CONNECT (TEPNANORP2040.LIB /
TEPNET.DLL), TEP Boards for Proteus 1.21.0 (adds the Nano RP2040 Connect). Demo sketch RP2040Connect_Color_Sorter V1.0.
Demo parts: TCS34725 (the Advance version), SG90TEP servo, LAPTOP WIFI MONITOR and MOBILE WIFI MONITOR.