The µLCD-32PTU is a compact intelligent display module from 4D Systems, featuring a 3.2-inch TFT LCD (240 × 320) with integrated resistive touchscreen. Powered by the PICASO processor with the EVE (Extensible Virtual Engine) core, it serves as a ready-made GUI for embedded projects.

The module combines the LCD screen, audio amplifier with speaker, micro-SD card slot, LiPo battery support, and general-purpose I/O into a single unit. A simple 5-pin serial interface (VCC, TX, RX, GND, RESET) connects to any host device.

Key Features

• 3.2-Inch TFT LCD – 240 × 320 resolution, 65K colours with integrated 4-wire resistive touch panel
• PICASO Processor – 4D-Labs processor with EVE virtual core engine
• Simple 5-Pin Interface – VCC, TX, RX, GND, RESET for easy host connection
• Dual Serial Ports – 2× asynchronous hardware UART (300–600K baud)
• I2C Master – Built-in I2C interface
• 13 GPIOs – Supports fast 8-bit parallel data transfer; 30-pin expansion header
• micro-SD Card Slot – FAT16 file access for multimedia storage and data logging (HC cards supported for >4 GB)
• Audio – PWM audio pin, on-board amplifier with 8 Ω speaker for WAV playback
• LiPo Battery Support – Built-in charger with automatic changeover
• 14 KB Flash + 14 KB SRAM – For user code and variables
• 4DGL Graphics Library – Full-colour images, animations, icons, video clips, and Windows font support

Specifications

• Display: 3.2-inch TFT, 240 × 320, 65K colours
• Processor: 4D-Labs PICASO
• Operating Voltage: 4.0–5.5 V (single supply)
• Timers: 8× 16-bit with 1 ms resolution
• Viewing Area: 48.6 × 64.8 mm
• Dimensions: 56.32 × 92.19 × 15.9 mm (including corner plates)
• Mounting: 4× corner plates with 2.7 mm holes

Resources

• Datasheet (PDF)