Description

“PDScreen” device family is an Industrial grade (-30...85 deg C) Smart Touch HMI TFT Displays which support different powering options and API communication interfaces (like I2C, UART, Ethernet) to operate as HMI touch module giving the system a full power of graphical user interface (GUI).

Media types supported

PD.Screen supports such a media types (should be stored into PD.Screen 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.

Ideal for Outdoor usage

PD.Screen is optimized for Outdoor usage consuming the minimal power possible together with immediate boot-up makes it very power-efficient solution. Typical current consumption @12V = 260 mA (with max brightness = 1008 Lux)

Ideal for :

• Post boxes

• Outdoor vending machines

• Parking Solutions

• Outdoor terminals

• Cigarette kiosks

• Autonomous 24h outdoor grocery stores

• Public transportation multi info-display systems with a single central controller

• Entrance/Security controllers (special glass could be installed : IK9/IK10)

The API commands are send via I2C/UART using defined format (in the documentation) giving the ability for users to use all-in-one solution for any kind of outdoor applications.

PD.Screen family

PDScreen modules family consist of 4” , 7”, 10.1” industrial-grade TFT matrixes + driver board with a firmware which gives a user a simple interface to interact by using I2C / Uart / Ethernet. All the complex hardware-type interfaces and commands between PDScreen MCU / RAM / Flash and peripherals are translated into the easy-to-implement interface commands which could be read and write to the several communication interfaces of the PDScreen modules. There are examples written in Python included which shows several examples, also the API included into the document attached to evaluate the principles and command list. PDScreen module based on the newest STM32 microcontroller utilizing the power and cost-effectivines of the latest industry standarts. STM32 MCU is designed by EU-based company - STMicroelectronics.

There are several PDScreen variants available : PDScreen 7inch m30 : 7-inch capacitive touch TFT module PDScreen 7inch m30 nt : 7-inch without touch support

ProtoDevs GmbH supports the helpdesk line in case of additional questions or PDScreen hardware / firmware / software customization requests - https://www.protodevs.de/forum/

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.
• 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).
• Ethernet speed: up to Fast Ethernet (100 Mbps).
• USB speed: up to USB 2.0 Full Speed (480 Mbps).

Simplified block diagram

(For PDScreen 7inch m30 ETH v.1.5): Block diagram

Additional resources

• PD.Screen Font Encoder could be downloaded from our web forum (Web-Portal-link)

• 3D CAD Models (STEP) could be downloaded from our web forum (Web-Portal-link)