AMOLED Display 1.75" 466×466 with RP2350, Touch, IMU (with enclosure) - Waveshare 33734

Description

RP2350-Touch-AMOLED-1.75 is a compact development board featuring a 1.75" AMOLED display with 466 × 466 px resolution and a capacitive touch panel, integrated with a dedicated protective enclosure. The design is based on the RP2350A microcontroller developed by Raspberry Pi, utilizing a dual-core, dual-architecture concept. The chip supports either two ARM Cortex-M33 cores or two Hazard3 RISC-V cores, operating at up to 150 MHz.

The AMOLED panel supports 65K colors, brightness up to 700 cd/㎡, and a 100000:1 contrast ratio. The CO5300 display driver communicates via QSPI, while the CST9217 touch controller uses the I2C interface, enabling efficient GPIO resource usage. AMOLED technology ensures high contrast, a 178° wide viewing angle, fast response time, and precise image detail reproduction.

The board integrates a 6-axis QMI8658 IMU including a 3-axis accelerometer and a 3-axis gyroscope, a PCF85063 RTC chip, ES8311 audio codec, onboard microphone, and an MX1.25 speaker connector for an 8 Ω 2 W speaker. The construction is delivered in the version with protective enclosure. The AXP2101 power management IC supports charging and control of a 3.7 V Li-Ion battery via an MX1.25 2PIN connector, enabling portable applications.

The board provides a USB Type-C port with USB 1.1 device and host support, drag-and-drop programming via USB mass storage, and a set of interfaces including SPI, I2C, UART, ADC, PWM, and programmable PIO state machines. Support for C/C++, MicroPython, and Arduino enables integration with multiple development environments.

1. RP2350A - Dual-core and dual-architecture design, up to 150 MHz operating frequency
2. Debug interface
3. PCF85063 - RTC chip
4. PWM button - for system power supply ON/OFF, supports custom function
5. MX1.25 2PIN speaker header - for connecting 80 2W speaker
6. MX1.25 Lithium Batt header - for 3.7V Lithium Batt, supports charging, discharging, and adjustable charging current
7. Microphone - Audio capture
8. ES8311 - Low-power audio codec chip
9. Type-C port - for downloading programs, USB 1.1 with device and host support 
10. Onboard IPEX 1 GPS connector - for connecting GPS antenna (for the GPS version only, with built-in LC76G module)!!
11. AXP2101 - highly integrated power management chip
12. 2.54mm pitch 8PIN female header - for easy external debugging or sensor connection
13. QMI8658 - 6-axis IMU includes a 3-axis gyroscope and a 3-axis accelerometer 
14. PSRAM interface - compatible with mainstream PSRAM chips for user expansion and upgrades
15. BOOT button - press it when resetting to enter download mode
16. TF Card slot

Features

• Microcontroller
  • Chip: RP2350A
  • Architecture: dual-core, dual-architecture ARM Cortex-M33 or Hazard3 RISC-V
  • Operating frequency: up to 150 MHz
  • SRAM: 520 KB
  • Flash memory: 16 MB
  • PSRAM interface: expansion pads available
• AMOLED display
  • Diagonal: 1.75"
  • Resolution: 466 × 466 px
  • Colors: 65K
  • Brightness: 700 cd/㎡
  • Contrast ratio: 100000:1
  • Viewing angle: 178°
  • Interface: QSPI
  • Driver IC: CO5300
  • Touch: capacitive
  • Touch controller: CST9217 via I2C
• Sensors and RTC
  • IMU: QMI8658 6-axis (3-axis accelerometer, 3-axis gyroscope)
  • RTC: PCF85063
  • Temperature sensor: built into the microcontroller
• Audio
  • Audio codec: ES8311
  • Microphone: onboard
  • Speaker connector: MX1.25 for 8 Ω 2 W
• Interfaces
  • USB: Type-C, USB 1.1 device and host
  • SPI: 1
  • I2C: 2
  • UART: 2
  • ADC: 4 × 12-bit
  • PWM: 5 channels
  • PIO: 12 programmable state machines
  • TF slot: microSD
  • Debug header: 2.54 mm pitch pins
• Power supply
  • Battery connector: MX1.25 2PIN for 3.7 V Li-Ion
  • Power management IC: AXP2101
  • Low-power modes: sleep, dormant

Kit includes

• RP2350-Touch-AMOLED-1.75 with enclosure ×1
• 8 Ω 2 W speaker ×1