RP2350 4.3inch Capacitive Touch Display Development Board, 800 × 480, 65K Color, Dual-core/architecture (WS-33167)
RP2350-Touch-LCD-4.3B
Integrates RGB interface LCD with 5-point capacitive touch, multiple peripheral interfaces

Version Options
RP2350-Touch-LCD-4.3B
Standard version, without case
RP2350-Touch-LCD-4.3B-BOX
With plastic case
Features
The RP2350-Touch-LCD-4.3B is a high-performance, highly integrated microcontroller development board designed by Waveshare. It integrates high-capacity Flash and PSRAM. Onboard 4.3inch capacitive HD LCD, RTC chip, TF card slot, and so on, combined with various communication interfaces for easy development and integration into products.
- RP2350B microcontroller chip designed by Raspberry Pi in the United Kingdom
- Adopts unique dual-core and dual-architecture design: dual ARM Cortex-M33 or dual Hazard3 RISC-V processors support, flexible clock running up to 150 MHz
- Built in 520KB Static RAM, with onboard 16MB Flash and 2MB PSRAM
- Type-C port for easier use
- Onboard 4.3inch capacitive touch LCD, 800 × 480 resolution, 65K color
- Supports capacitive touch control via I2C interface, 5-point touch with interrupt support
- Onboard CAN, RS485, I2C and digital isolated I/O interfaces, etc.
- Onboard voltage regulator, supports 7V ~ 36V wide range power supply
- Supports passive and active digital input with bi-directional optocoupler isolation, and the active digital input supports positive and negative voltages
- Supports digital output with optocoupler isolation, provides higher driving capability with up to 450mA sinking current
- USB 1.1 with device and host support
- Low-power sleep and dormant modes
- Drag-and-drop programming using mass storage over USB
- Accurate clock and timer on-chip
- Built-in temperature sensor for real-time monitoring of chip temperature
- 12 × programmable I/O (PIO) state machines for custom peripheral support
Application Scenarios

IPS Display Panel
Excellent display performance, 160° wide viewing angle

Capacitive 5-point touch
supports touch function with I2C interface, 5-point touch for flexible operation and smooth multi-point UI interaction

Supports multiple peripherals
Supports the expansion of multiple peripherals via CAN, RS485, I2C and isolated I/O interfaces
Supports Two wiring methods
Comes with two types of screw terminals, allowing for bottom or back wiring, which is more convenient to integrate into various application scenarios such as DIN rail or embedded devices
Bottom Wiring
Back Wiring
Back Wiring
Note: the case version does not support bottom wiring.
dual-core, dual-architecture
The unique dual-core, dual-architecture capability of RP2350B allows users to choose between a pair of industry-standard Arm Cortex-M33 cores, and a pair of open-hardware Hazard3 cores, giving developers a chance to experiment with the RISC-V architecture in a stable, well-supported environment

Supports C/C++, MicroPython, Arduino IDE
Comprehensive SDK, Dev Resources, Tutorials To Help You Easily Get Started

What's On Board
- RP2350B
Dual-core and dual-architecture design, up to 150 MHz operating frequency
- Debug interface
- Optocoupler isolation
- 4.3inch display panel connector
- 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)
- RTC Batt holder
specification: CR927
- MX1.25 Lithium Batt header
for 3.7V Lithium Batt, supports charging and discharging, with charging current of up to 500mA
- Batt power supply ON/OFF
ON: connect the Batt; OFF: disconnect the Batt
- CAN and RS485 terminal resistor switches
disabled by default
- Digital input
5V ~ 36V, supports passive / active input (NPN or PNP)
- 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
- Digital output
5V ~ 36V, open-drain output, output load: 450mA per channel (MAX)
- RS485 port screw terminal
- CAN port screw terminal
- I2C port screw terminal
VOUT pin output 5V/3.3V (switching by onboard resistor)
- 7V ~ 36V DC power supply terminal
- Touch panel connector
- RESET button
- BOOT button
Press it when resetting to enter download mode
- USB Type-C port
for programming, USB 1.1 with device and host support
- TF card slot
- 2MB PSRAM
- 16MB Flash
- XL2515QF20
optional for dedicated plastic case
Supports installing 60 × 30 × 6 (mm) (L × W × H) lithium Batt
* for reference only, the Lithium Batt is NOT included.
multiple installation methods
* for reference only, the rail bracket, wall bracket and monitor arm are not included.
The mounting hole spacing on the back of the case is 75mm.
outline dimensions
RP2350-Touch-LCD-4.3B (without case)
RP2350-Touch-LCD-4.3B-BOX (with plastic case)

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