Name: China Discount 3.5-inch COF HMI Touchscreen Manufacturers Suppliers Factory - Low Price
Brand: Kinseal
SKU: 305740121

The ASTG035W023-COF series is a compact, high-reliability Human Machine Interface (HMI) module designed for industrial embedded applications. Utilizing Chip-On-Flex (COF) packaging, it offers a slim profile and robust performance in harsh environments.

Display: 3.5" TFT LCD, 320×480 resolution, 65K colors, 250 cd/m² brightness.

Touch Options: Resistive touch (Model R) or No-touch (Model N); supports external capacitive touch panels.

Performance: 200MHz ARM Cortex-M4F core, built-in 2MB PSRAM, 10MB SPI NOR Flash.

Interfaces: 1× UART (TTL), 1× CAN bus, USB 2.0 (Device), reserved GPIOs, RTC, and Buzzer interfaces.

Software: Compatible with HMILite Configuration Software for drag-and-drop UI design; supports Modbus, Mitsubishi, Siemens, Delta, and custom protocols.

Reliability: Passed IEC 61000-4-2 ESD (±4KV Air), IEC 61000-4-4 EFT (±4KV), and -20℃ to +70℃ high/low-temperature aging tests.

Ideal for: Industrial control panels, medical instruments, automation terminals, and vehicle displays.

Default Communication Ports

UART2: Primary communication port for PLC/MCU interaction.
CAN1: Default CAN bus interface.
USB: Used for firmware downloads via HMILite software.

Rich GPIO Resources

The module reserves multiple General Purpose Input/Output pins (GINT) operable via macro commands, supporting PWM, ADC, and I2C expansion for external sensors and actuators.

🚀 Compact 3.5" COF HMI Module for Industrial IoT

✅ 320×480 High Resolution Display

✅ Resistive / No-Touch Options

✅ UART + CAN Bus Communication

✅ Wide Temp Range: -20℃ to +70℃

✅ Zero-code UI Design with HMILite Software

KinSeal Intelligent Control – Dedicated to the Best Smart Control Terminals.

FAQ

Q: What is the difference between the R and N models?

A: The R model features a Resistive Touchscreen, ideal for button operation. The N model is Non-touch, intended for display-only applications or external touch solutions. All other hardware specifications are identical.

Q: What are the power requirements? Can I connect 5V?

A: The screen requires a strict DC 3.3V power supply with a maximum consumption of 1W. It does not support 5V direct input; connecting 5V will permanently damage the module.

Q: Do I need to write low-level driver code?

A: No. The module comes with pre-installed firmware. You only need to use our official HMILite Configuration Software to design the UI via drag-and-drop widgets, requiring no MCU programming.

Q: What communication interfaces and protocols are supported?

A: It features 1× UART (TTL) and 1× CAN Bus by default. The software supports Modbus, Siemens, Mitsubishi, Delta, and other major PLC protocols, including custom protocols.

Q: Is it reliable enough for industrial sites?

A: Yes. It operates in -20℃ to +70℃ environments and has passed rigorous industrial EMC tests: ±4KV ESD (Electrostatic Discharge) and ±4KV EFT (Electrical Fast Transient), ensuring no unexpected reboots.

Q: How do I download the project to the screen?

A: Simply connect the screen to your PC via the onboard USB port and use the HMILite software to download the compiled project with one click.

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