RP2350 development board with LCD 1.46" 480x480, touch - Waveshare 32868

Description

The RP2350-Touch-LCD-1.46B is designed for compact projects requiring a graphical user interface, touch input, and integration of multiple peripheral functions on a single board. The device is based on the RP2350B microcontroller designed by Raspberry Pi, featuring a unique dual-core, dual-architecture design with selectable ARM Cortex-M33 cores or Hazard3 RISC-V cores, clocked up to 150 MHz.

The integrated round IPS display with a 1.46" diagonal and 480x480 resolution provides good readability and wide viewing angles. The capacitive touch panel supports up to 5 touch points and communicates via the I2C interface with interrupt support, enabling smooth and responsive user interaction.     

The board is equipped with a 6-axis IMU sensor, RTC clock, audio codec, microphone, speaker, and a TF card slot. The USB Type-C connector enables drag-and-drop programming and operation in USB 1.1 host and device modes. This version is supplied without a protective glass layer, while maintaining full touch functionality.

                                                                                                                                    Onboard resources

1. RP2350B - Dual-core and dual-architecture design, up to 150MHz operating frequency
2. QMI8658 - 6-axis IMU includes a 3-axis gyroscope and a 3-axis accelerometer
3. 1.27mm pin header - adapting GPIO and other functional pins
4. RTC chip - PCF85063 RTC chip
5. Batt. recharge manager
6. Microphone
7. RTC batt. header - for connecting rechargeable RTC batt.
8. Power indicator
9. USB Type-C port - for programming, USB 1.1 with device and host support
10. Charge indicator - Lithium batt. charge indicator, lights up when charging, off when fully charged (the light status is uncertain when the batt. is not connected) 
11. BOOT button - Press it when resetting to enter download mode
12. ES8311 - low-power audio codec chip
13. 16MB Flash
14. Speaker
15. PWR button - for power supply ON/OFF, supports custom functions
16. MX1.25 batt. header - MX1.25 2PIN connector, for 3.7V Lithium batt., supports charging and discharging
17. TF card slot
18. Amplifier chip

                                                                                                                                       Pin definition

Features

• Microcontroller: RP2350B
• Architecture: Dual-core ARM Cortex-M33 or dual-core Hazard3 RISC-V
• Maximum clock frequency: up to 150 MHz
• RAM: 520 kB SRAM
• Flash memory: 16 MB
• Display: Round 1.46" IPS, capacitive touch
• Display resolution: 480 x 480
• Color depth: 65k
• Touch support: Up to 5 points, I2C interface, interrupt support
• IMU sensor: 6-axis accelerometer and gyroscope
• RTC: PCF85063
• USB interface: USB Type-C, USB 1.1 host and device
• Interfaces: 2x I2C, 2x UART, GPIO, ADC, PWM, PIO
• GPIO count: 14 multifunction pins
• Card slot: TF
• Audio: ES8311 codec, microphone, speaker
• Power supply: 5 V via USB Type-C or 3.7 V Li-Ion/Li-Po battery
• Battery connector: MX1.25 2-pin
• Power-saving modes: Sleep, dormant
• Supported environments: C/C++, MicroPython, Arduino IDE
• Weight: 12 g