Project Files of Raspberry Pi Pico 2 W Library for Proteus: BME680, CCS811, TFT

RASPBERRY PI PICO 2 W LIBRARY FOR PROTEUS - V1.0 (YOUR PICO 2 W ARDUINO SKETCH, WI-FI, AN AIR QUALITY STATION)
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/raspberry-pi-pico-2-w-library-for-proteus.html
Report a bug or suggest a feature (our forum):
  https://www.theengineeringprojects.com/forum/category/raspberry-pi-pico-2-w-proteus-library
The demo's parts are our libraries (included) - their articles:
  BME680:
    https://www.theengineeringprojects.com/2026/10/bme680-gas-sensor-library-for-proteus-v1-0.html
  CCS811:
    https://www.theengineeringprojects.com/2026/10/ccs811-air-quality-sensor-library-for-proteus-v1-0.html
  ST7789 TFT:
    https://www.theengineeringprojects.com/2026/10/st7789-tft-lcd-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 first Pico W library (the same pins and the same Wi-Fi):
  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
Raspberry-Pi-Pico-2-W-TEP-v1.0/
|-- Proteus Library Files/
|   |-- TEPBME680.LIB                                    66.2 KB   the BME680 (demo), to LIBRARY
|   |-- TEPCCS811.LIB                                    58.5 KB   the CCS811 (demo), to LIBRARY
|   |-- TEPLAPTOP.LIB                                    39.5 KB   the laptop (demo), to LIBRARY
|   |-- TEPMOBILE.LIB                                    13.1 KB   the phone (demo), to LIBRARY
|   |-- TEPPICO2W.LIB                                    32.1 KB   the Raspberry Pi Pico 2 W, to LIBRARY
|   |-- TEPST7789.LIB                                    85.8 KB   the ST7789 TFT (demo), to LIBRARY
|-- Proteus Model Files/
|   |-- TEPBME680.DLL                                   342.0 KB   the BME680, to MODELS
|   |-- TEPCCS811.DLL                                   330.5 KB   the CCS811, to MODELS
|   |-- TEPNET.DLL                                       2.44 MB   the board + monitors + network, to MODELS
|   |-- TEPST7789.DLL                                   315.0 KB   the ST7789 TFT, to MODELS
|-- Arduino Code/
|   |-- Pico2W_Air_Station/Pico2W_Air_Station.ino         7.8 KB   the demo sketch
|   |-- TEP Boards for Proteus/hardware/                649.3 KB   the Arduino IDE add-on 1.17.0 (158 files)
|-- Proteus Simulation/
|   |-- Pico2W_Air_Station.hex                          123.3 KB   the demo sketch (U1)
|   |-- Pico-2-W-Air-Quality-Station.pdsprj              28.1 KB   the demo: an air quality station
|   |-- TEPBME680.DLL                                   342.0 KB   copy of the model
|   |-- TEPCCS811.DLL                                   330.5 KB   copy of the model
|   |-- TEPNET.DLL                                       2.44 MB   copy of the model
|   |-- TEPST7789.DLL                                   315.0 KB   copy of the model
|-- README.txt                                          ~13.8 KB   this file
Total: 7.90 MB (unzipped). The source code of the models is not included.

WHAT IS IT?
Proteus 8 has no Raspberry Pi RP2350 model and no Infineon CYW43439 Wi-Fi chip, so this is NOT a real RP2350. It is the
Raspberry Pi Pico 2 W - the 51 x 21 mm board with its 2 x 20 castellated pins, the RP2350, the CYW43439 under its can,
the PCB antenna, micro-USB, BOOTSEL and the LED - that runs YOUR Pico 2 W Arduino sketch in Proteus:
  * You write a normal Pico 2 W sketch for the arduino-pico core (Earle Philhower's "Raspberry Pi Pico/RP2040/RP2350"
    board package): GP0 .. GP22 and GP26 .. GP28 as pins 0 .. 28, A0 .. A2, LED_BUILTIN, BOOTSEL, analogReadTemp(),
    Serial, Serial1, Wire, SPI, WiFi, WebServer, HTTPClient and LEAmDNS (MDNS) - and compile it in the Arduino IDE with
    our board package "TEP Boards for Proteus" 1.17.0 (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 Pico's pins, 3.3 V logic, GP26 .. GP28 (0 .. 1023 for 0 .. 3.3 V), the LED, BOOTSEL, RUN, the built-in
    serial monitor on the USB (Serial) and the Wi-Fi radio (the CYW43439's job on the real board).
  * Wi-Fi: a virtual router (TEP-WiFi, password 12345678) with DHCP (192.168.1.101 for U1), mDNS names (pico2w.local),
    TCP and UDP between all the TEP Wi-Fi parts in the design (boards, modules, the Laptop and Mobile WiFi Monitors).
The Pico 2 W has the Pico W's board, pins and layout; this library draws it with the RP2350 on the board and the silk
"Pico 2 W". TEP additions: a red PWR LED (the real board has none), the antenna colours (green on Wi-Fi, orange sending,
cyan receiving), the PANEL pad (or the can) 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 RP2350: 150 MHz, 520 KB), int is 16 bits (the real
board: 32 bits - use long for big numbers), no second core, no PIO, no RISC-V cores, no Bluetooth, no MicroPython. See
MODEL SCOPE
AND LIMITS.

ONE DEVICE (search "PICO 2 W" in Pick Devices):
  RASPBERRY PI PICO 2 W  "Raspberry Pi Pico 2 W" V1.0 (Microprocessor ICs > Raspberry Pi Boards), prefix U, model
  TEPNET.DLL The panel (a TEP pop-up window; the PANEL pad opens it): Wi-Fi (a phone: OPEN PICO 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: PWR and the LED, the RUN and BOOTSEL keys, 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 25 Oct 2026 with the demo project as shipped. What the Proteus run showed:
* Pico-2-W-Air-Quality-Station: the monitor printed "BME680 found, CCS811 found", joined TEP-WiFi (192.168.1.101) and
  "mDNS: http://pico2w.local/"; fresh air: "24.5 C  45 %RH  1013.3 hPa  gas 117.4 kOhm  eCO2 487 ppm  TVOC 13 ppb  GOOD"
  and GOOD in green on the ST7789.
* The laptop (192.168.1.21) and the phone (192.168.1.41) opened http://pico2w.local/ (HTTP 200) with the readings.
* MEETING on the CCS811's pop-up: eCO2 809, 1160, 1366 ppm - MODERATE, then POOR in red on the screen; the LED and the
  PWR LED lit; the laptop's REFRESH showed Air POOR.
* ALARM 1500 on the phone: "alarm 1500 ppm (page)", the air MODERATE (1456 - 1493 ppm), the LED off.
* VENTILATE on the CCS811's pop-up: the eCO2 fell from 1493 to 720 ppm in about 30 s of simulation - GOOD again.
* About 63 s of simulation, no errors; about 13 % of real time with the three pop-ups, 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). TEPPICO2W.LIB is the Pico 2 W;
   the others are the demo's parts: TEPBME680.LIB, TEPCCS811.LIB, TEPST7789.LIB, TEPLAPTOP.LIB and TEPMOBILE.LIB.
3. Copy the DLLs from "Proteus Model Files" (TEPNET.DLL, TEPBME680.DLL, TEPCCS811.DLL, TEPST7789.DLL) to the MODELS
   folder (...\Proteus 8 Professional\MODELS) - replace an older TEPNET.DLL (this one is the first that knows the Pico 2
   W).
4. Delete TEPPICO2W.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 > Raspberry Pi Pico 2 W (TEP Proteus).
6. Start Proteus. In Pick Devices (P) search "PICO 2 W".

RUN THE DEMO
Keep the .hex file and the DLLs beside the project in "Proteus Simulation".
Pico-2-W-Air-Quality-Station.pdsprj - U1 the Pico 2 W (Pico2W_Air_Station.hex) reads U2 = the BME680 and U3 = the CCS811
on I2C (SDA GP4, SCL GP5) and draws on TFT1 = the 1.54" ST7789 (SPI: SCK GP18, MOSI GP19, CS GP17, DC GP20, RES GP21,
BLK GP22); PC1 the Laptop WiFi Monitor and MOB1 the Mobile WiFi Monitor open http://pico2w.local/. All three parts are
the Advance versions: each opens its pop-up window at Run.
Press Run. The screen shows GOOD in fresh air. On the CCS811's pop-up click MEETING (1400 ppm): POOR, the LED lights. On
the phone tap ALARM 1500: MODERATE. Click VENTILATE on the CCS811's pop-up: the air clears, GOOD again. REFRESH on the
page shows the new values.
Air: GOOD below 800 ppm eCO2 and 220 ppb TVOC, POOR from the alarm level (1000 ppm, or the page's 800 / 1500) or 660 ppb
TVOC, MODERATE between. The LED lights while the air is POOR.
The sensors' VCC: in the demo the BME680's and the CCS811's VCC go to Proteus' power rail (a power terminal) - their
models read VCC as a digital level, which the board's 3V3 (an analog source) does not give them; on a real board both
sit on the Pico's 3V3. Closed a window? The micro-USB of the board opens the monitor, the PANEL pad the panel.

THE PINS (the label on the board, what it can do in the simulation)
  GP0 / GP1          Serial1 TX / RX (UART0, as in arduino-pico), GPIO, interrupt
  GP2 .. GP22        GPIO, interrupt, analogWrite (PWM on any GP pin, as on the RP2350)
  GP4 / GP5          also Wire SDA / SCL (I2C0)
  GP16 .. GP19       also SPI MISO / CS / SCK / MOSI (SPI0)
  GP26 .. GP28       A0 .. A2: analogRead 0 .. 1023 for 0 .. 3.3 V; also GPIO
  LED_BUILTIN        the LED (the CYW43's GPIO on the real board; 32 here - write LED_BUILTIN, not a number)
  3V3 / VBUS         3.3 V (the board's logic) and 5 V (the USB's)
  GND / AGND, RUN    ground; RUN is the reset (LOW holds the board in reset)
  VSYS, 3V3_EN, VREF drawn, not modelled
Serial is the USB (the board's monitor), not GP0 / GP1. 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 Raspberry Pi Pico 2 W (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 NTP 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 Pico 2 W per design (its USB serial and LED
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 Raspberry Pi Pico 2 W (TEP Proteus)
  and export the binary again.
* "BME680 NOT FOUND" / "CCS811 NOT FOUND" in the monitor, and NO POWER on the sensor's pop-up: its VCC needs a digital
  supply (the power terminal, as in the demo); its SDA / SCL must be on GP4 / GP5.
* The TFT stays black: SPI_MODE0 in tft.init() (the only mode Proteus's AVR SPI clocks), CS GP17, DC GP20, RES GP21, BLK
  HIGH.
* The board stays on "Connecting to TEP-WiFi": 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/raspberry-pi-pico-2-w-proteus-library

LICENCES AND THIRD-PARTY NOTES
* The board model and the Wi-Fi network (TEPNET.DLL), the symbols and artwork (TEPPICO2W.LIB, TEPLAPTOP.LIB,
  TEPMOBILE.LIB) and the sensor and display models (TEPBME680, TEPCCS811, TEPST7789 .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, WebServer, HTTPClient, LEAmDNS and the other libraries and our core files are MIT
  (LICENSE-MIT.txt).
* The demo sketch uses Adafruit's BME680 (BSD) with the Unified Sensor library (Apache 2.0), CCS811 (MIT), GFX (BSD),
  ST7735 and ST7789 (MIT) and BusIO (MIT) libraries - 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. Raspberry Pi, Pico and RP2350 are trademarks of
  Raspberry Pi Ltd, CYW43439 a name of Infineon Technologies. 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 Adafruit libraries, open Arduino
Code\Pico2W_Air_Station, select Raspberry Pi Pico 2 W (TEP Proteus) and use Sketch > Export Compiled Binary. For a real
Pico 2 W install Earle Philhower's "Raspberry Pi Pico/RP2040/RP2350" package, select "Raspberry Pi Pico 2 W" and upload
- the same sketch.

MODEL SCOPE AND LIMITS
Modelled: the Pico 2 W's header pins on a hidden ATmega2560 (Proteus's AVR model, 16 MHz, 3.3 V); digital I/O,
analogRead (GP26 .. GP28), PWM and attachInterrupt on any pin through the board model; BOOTSEL, the LED, analogReadTemp,
RUN; Serial (the USB monitor), Serial1 on GP0 / GP1, Wire on GP4 / GP5 and SPI on GP16 .. GP19 (the AVR's hardware);
Wi-Fi station mode, DHCP, mDNS, TCP, UDP and NTP; the other TEP Wi-Fi parts on the same network.
Not modelled: the RP2350 itself (two Cortex-M33 or Hazard3 cores at 150 MHz, 520 KB of RAM, PIO, its security features),
the CYW43439 as a chip and its Bluetooth, the flash chip, VSYS / 3V3_EN / ADC_VREF, real TLS. The simulation runs below
real time.

VERSION
TEP Raspberry Pi Pico 2 W library V1.0 (Oct 2026). Device RASPBERRY PI PICO 2 W (TEPPICO2W.LIB / TEPNET.DLL), TEP Boards
for Proteus 1.17.0 (adds the Pico 2 W). Demo sketch Pico2W_Air_Station V1.0. Demo parts: BME680, CCS811 and TFT 1.54"
ST7789 (the Advance versions), LAPTOP WIFI MONITOR and MOBILE WIFI MONITOR.