“PD.Screen PRO” family is an Industrial grade (-30…+85 deg C) Smart Touch HMI TFT Display Platform which support different powering options and communication interfaces (like I2C, UART, CAN, USB, Ethernet, WiFi, Bluetooth, etc.) to operate as a peripheral HMI touch module or all-in-one MCU-based module giving the system a full power of graphical user interface (GUI).

Why PD.Screen_PRO exists

Traditional approaches (Raspberry Pi, custom MCU designs, or Arduino + display stacks) introduce long boot times, filesystem risks, driver complexity, and unpredictable behavior—especially in outdoor or industrial environments. PD.Screen_PRO eliminates those risks.

It replaces months or years of hardware, driver, and GUI development with a production-ready, API-controlled HMI solution.

⚡ Instant boot (milliseconds)

🧱 No OS, no filesystem, no corruption risk

🎯 Deterministic real-time GUI with native touch events

🔌 Pre-integrated industrial peripherals

🚀 Fastest time-to-market in its class

This PD.Screen_PRO module helps to achieve rapid time-to-market for makers and for the companies who need the outdoor touch-screen HMI with the Arduino-ease solution for different scenarios where the next peripherals are in need:

• a) QR-barcode scanner 1 (1D and 2D) type 1
• b) QR-barcode scanner 2 (1D and 2D) type 2
• c) STEP motor driver, for NEMA-17 or NEMA-21 or others
• d) RGBW LED strip supported, 1x LED onboard + connector to chain LEDs
• e) Thermoprinter interface (data + power)
• f) RS-485 interface, with daisy-chain connectors
• g) 100M Ethernet + PoE powering option
• h) UART on the dedicated connector (Payment terminal could be connected here)
• i) I2C on the dedicated connector
• j) CAN on the dedicated connector
• k) Dedicated connector for 4x4 Keyboard
• l) GPIO extension connectors for your own breadboards (connected to ESP32 via GPIO expanders)
• m) RTC onboard + battery holder

PD.Screen_PRO is a ready-to-deploy industrial HMI computer that replaces months/years of custom hardware + driver development with a simple API-based solution. No drivers. No low-level firmware. Control everything through simple API commands.

Best Fit for System Integrators / Product Developers / Industrial makers / Advanced DIY / Startups:

• Access control systems
• Smart lockers, Post/Parcel boxes
• Ticketing & kiosks
• Silence Pod controllers, quiet box interfaces
• Industrial automation HMIs / monitoring
• Off-grid & solar-powered systems

Free customization is possible for mass-production Customers. This product is designed for commercial and industrial systems. Volume pricing, OEM options, and long-term availability available on request.

PD.Screen_PRO modules family consist of 7”, 10.1” industrial grade TFT matrixes + driver board with a firmware that gives to user a simple interface to interact with.

All the complex hardware-type interfaces and commands between PD.Screen_PRO MCU / RAM / Flash and peripherals are translated into the easy-to-implement API interface commands which could be read and write by onboard ESP32 MCU.

There are examples for Arduino(TM) and Python(TM) included that show how simple it is to control specific interfaces, also the API description included into the Datasheet document to evaluate the principles and command list.

The additional 32-bit MCU implemented onboard so the module can be programmed as a standalone active device or peripheral device depending on the task. MCU onboard is ESP32 and there are several examples written for Arduino IDE to show the powerful way to interact with the peripherals (RGBW strips, QR-barcode scanners, Thermoprinters - for versions 1.8+, membrane and mechanical 4x4 keyboards, STEP motor, payment terminals, etc.).

Moreover, PD.Screen_PRO has GPIO extender connectors so the shields could be easily connected, the PRO_Shield example could be found on our Forum - made in Altium Designer eCAD system for easy production or customization.

Use-case scenarios for PD.Screen_PRO modules :

• 1) Off-grid Parking access controllers
• Outdoor/indoor smart touch-screen access controllers with WiFi/Bluetooth with the regular cellular automated calls support (PD.Screen_PRO + PD.Charger_GSM + PD.Cam)
• 2) Off-grid Post boxes, Smart Locker solutions
• Off-grid/on-grid Touch-screen platform for Post boxes, Smart Lockers (individual and communal), Commercial containers (PD.Screen_PRO + PD.Charger_GSM + PD.Relay_Board + PD.Cam)
• 3) Mobile connected Ticket terminal systems
• Touch-screen platform for Ticket systems with QR-Scan (1D / 2D) and Thermal printer support (PD.Screen_PRO)
• 4) Smart Dispensers for outdoor and indoor applications
• Touch-screen controller platform for different types of indoor/outdoor Smart Dispensers with embedded step motor controller (PD.Screen_PRO)
• 5) Silence Pods / Quiet Call Boxes controllers
• Touch-screen controller for Silence Pods / Quiet Call Boxes with embedded Fan, LED, Heater, motion control and connectivity (PD.Screen_PRO)
• 6) Stations for batteries multi-charging
• Monitoring controller platform for LiIon / LiFePo multi-battery charging (1 .. 50+ batteries at once with individual monitoring) with connectivity (PD.Screen_PRO + PD.Charger)
• 7) Outdoor Off-grid Sensor station platform with rich connectivity
• Solution for off-grid solar-powered multi-sensor installations (PD.Charger_GSM)
• 8) Meeting-room / operational-room touch-screen interactive informers
• for displaying and creating the calendar bookings with PoE powering, wired and wireless connectivity (PD.Screen_PRO)

The PD.Screen_PRO module's core is based on the newest STM32 microcontroller utilizing the power and cost effectiveness of the latest industry standards.  The ESP32 controls the Screen, touch events and all the peripherals via simple API commands so no need to write drivers, this concept makes it possible to roll-out almost any project with outstanding time-to-market speed.

The next interfaces are embedded on the full version of the PD.Screen_PRO (7 inch): UART speed: up to 1000000 (1 Mbps), firmware locked to 921000 (921 kbps) by default I2C speed: up to 1 megabit per second (1 Mbps) CAN speed: up to 1 megabit per second (1 Mbps) RS485 speed: up to 10 megabit per second (10 Mbps), up to 256 devices on the bus Ethernet with PoE speed: up to Fast Ethernet (100 Mbps) USB speed: up to USB 2.0 Full Speed (480 Mbps)

Media types supported PD.Screen_PRO supports such a media types (should be stored into PD.Screen_PRO memory uploaded via I2C or UART or LAN) BMP images with 24 bits per pixel color JPG images, colored with 24 bits per pixel color PNG images, with 24 bits per pixel color or 32 bits per pixel color (with A channel) Fonts in a special FNT format

Using of JPG images is preferrable as there is an embedded hardware support for JPG decoding (STM32 side).

Operational characteristics Operational temperature: -30 ... 85 C. Storage temperature: -55 to 150 C. Screen resolution : 800*480 pixels, 16.7M colors Screen brightness : 400 Cd/m2 MCU "PowerSave" Firmware version Performance : MCU frequency = 120 MHz, SRAM frequency = 60 MHz (default) MCU "FullSpeed" Firmware version Performance : MCU frequency = 550 MHz, SRAM frequency = 166 MHz Input voltages variants: 5V on USB Type C connector, 12V, 48V PoE for ETH version. ESD rating: Charged device model (CDM), per JEDEC specification JESD22-C101.