RP2350 Development Board with 4.3″ Touch LCD 800 × 480 - Waveshare 33110

Description

Waveshare 33110 is a development board designed for building HMI user interfaces, control systems, and industrial and embedded applications. The board is based on the RP2350B microcontroller, developed by Raspberry Pi, featuring a dual-core, dual-architecture design that allows operation on either ARM Cortex-M33 cores or Hazard3 RISC-V cores, with a maximum clock frequency of up to 150 MHz.

The board is equipped with a 4.3-inch IPS capacitive touch display with a resolution of 800 × 480 and 65K color depth, providing a 160° viewing angle and smooth graphical user interface performance. The touch panel supports 5-point capacitive touch, communicates via the I2C bus, and offers interrupt support, facilitating the development of advanced user interfaces.

Integrated communication interfaces CAN, RS485, and I2C, along with optically isolated digital inputs and outputs, enable direct connection of sensors, actuators, and automation systems. Support for passive and active digital inputs (NPN, PNP) and open-drain digital outputs with optocoupler isolation allows operation in industrial environments with increased electrical requirements.

Power is supplied from a 7 V ~ 36 V DC range, and the board also supports a 3.7 V lithium battery with a built-in charging circuit. The available USB Type-C port enables programming and communication in USB 1.1 device and host modes. The board supports development in C/C++, MicroPython, and Arduino IDE, with extensive documentation and development resources provided by Waveshare.

The Standard version is delivered without an enclosure, with the option of bottom or rear wiring using the included 16-pin screw terminal.

                                                                                                                   Supports multiple peripheral devices

                                                           Enables expansion with multiple peripheral devices via CAN, RS485, I2C and isolated I/O interfaces

                                                                                                                                     Controller board layout

1. RP2350B - Dual-core and dual-architecture design, up to 150 MHz operating frequency
2. Debug interface
3. Optocoupler isolation
4. 4.3inch display panel connector
5. Status Indicators - DONE: Lithium Batt charging completed indicator; CHG: Lithium Batt charging indicator; PWR: Power supply indicator(the CHG will blink and DONE will light on when connecting with DC power supply and without Lithium Batt connected or Batt switch is OFF)
6. RTC Batt holder - specification: CR927
7. MX1.25 Lithium Batt header - for 3.7V Lithium Batt, supports charging and discharging, with charging current of up to 500mA
8. Batt power supply ON/OFF - ON: connect the Batt; OFF: disconnect the Batt
9. CAN and RS485 terminal resistor switches - disabled by default
10. Digital input - 5V ~ 36V, supports passive / active input (NPN or PNP)
11. Input signal common terminal - NC: dry contact passive input - Connect to power supply positive: digital input low active, for NPN wet contact active input, 5V ~ 36V DC; Connect to power supply negative: digital input high active, for PNP dry contact active input, 5V ~ 36V DC
12. Digital output - 5V ~ 36V, open-drain output, output load: 450mA per channel (MAX)
13. RS485 port screw terminal
14. CAN port screw terminal
15. I2C port screw terminal - VOUT pin output 5V/3.3V (switching by onboard resistor)
16. 7V ~ 36V DC power supply terminal
17. Touch panel connector
18. RESET button 
19. BOOT button - Press it when resetting to enter download mode 
20. USB Type-C port - for programming, USB 1.1 with device and host support
21. TF card slot
22. 2MB PSRAM
23. 16MB Flash
24. XL2515QF20

Features

• Microcontroller
  • Model: RP2350B
  • Architecture: dual-core, dual-architecture
  • Cores: 2 × ARM Cortex-M33 or 2 × Hazard3 RISC-V
  • Maximum clock frequency: 150 MHz
• Memory
  • SRAM: 520 KB
  • Flash: 16 MB
  • PSRAM: 2 MB
• Display
  • Diagonal size: 4.3 inches
  • Panel type: IPS
  • Resolution: 800 × 480
  • Color depth: 65K
  • Viewing angle: 160°
• Touch Panel
  • Type: capacitive
  • Touch points: 5
  • Interface: I2C
  • Interrupt support
• Communication Interfaces
  • CAN
  • RS485
  • I2C
  • USB 1.1 (device, host)
• Digital Inputs and Outputs
  • Digital inputs: 5 V ~ 36 V, passive and active (NPN, PNP)
  • Digital outputs: open-drain, 5 V ~ 36 V
  • Maximum load current: 450 mA per channel
• Power Supply
  • Supply voltage: 7 V ~ 36 V DC
  • Lithium battery support: 3.7 V
  • Maximum charging current: 500 mA
• Additional Features
  • RTC with battery backup
  • Built-in temperature sensor
  • Low-power operating modes
  • Drag-and-drop programming over USB
  • 12 programmable PIO state machines
• Physical Elements
  • Buttons: RESET, BOOT
  • USB Type-C port
  • TF card slot
  • Touch panel connector

Kit includes

• 1 × RP2350-Touch-LCD-4.3B – development board (Standard version, without case)
• 1 × 16-pin screw terminal for wiring