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Circular development board with 1.28 inch IPS display and female headers

WaveShare

WaveShare RP2040 1.28" 240x240 IPS Development Board

SKU CH-G731-S2CZW

Development board with a 1.28 inch round IPS LCD at 240x240 pixels and an RP2040 microcontroller running up to 133 MHz

  • CPU TypeOther
  • RP2040 dual-core Arm Cortex-M0+ runs up to 133 MHz for responsive edge tasks
  • 28 inch 240×240 IPS panel shows 65 K colours for clear visuals
  • 2 MB on-board Flash plus 264 KB SRAM stores code and buffers
  • 30 GPIO pins on 1.27 mm pitch headers expand peripheral options
  • USB 1.1 Type-C enables drag-and-drop programming and host/device modes

RP2040 microcontroller with round IPS display

This development board combines an RP2040 chip with a 1.28inch 240x240 pixel IPS LCD that shows 65K colours. The dual-core Arm Cortex M0+ processor runs up to 133 MHz with 264KB SRAM and 2MB flash. A Type-C connector provides USB 1.1 device and host support plus drag-and-drop programming. It suits makers building compact IoT prototypes that need a small colour screen.

Upgrades from bare RP2040 modules without

The onboard round LCD removes the need to wire a separate screen for visual feedback. Lithium battery recharge and discharge headers enable portable operation without extra power circuitry. All GPIO pins are accessible through 1.27 pitch female headers, though some connect internally. Choose this board when a project requires immediate visual output and battery-ready mobility in one package.

Sustained operation with low-power sleep

The RP2040 supports low-power sleep and dormant states to extend battery life during long deployments. On-chip accelerated floating-point libraries and 8 programmable I/O state machines handle continuous sensor processing without overloading the cores. Peripherals include 2 SPI, 2 I2C, 2 UART, 4 ADC channels and 16 PWM outputs for steady control tasks. An onboard temperature sensor monitors thermal conditions during extended runs.

Highlights

  • RP2040 dual-core Arm Cortex-M0+ runs up to 133 MHz for responsive edge tasks
  • 28 inch 240×240 IPS panel shows 65 K colours for clear visuals
  • 2 MB on-board Flash plus 264 KB SRAM stores code and buffers
  • 30 GPIO pins on 1.27 mm pitch headers expand peripheral options
  • USB 1.1 Type-C enables drag-and-drop programming and host/device modes

Specifications

CPU TypeOther

Questions about this item

What header pitch is used for the 30 GPIO pins on this board?

The 30 GPIO pins are exposed through 1.27 pitch female headers, though some pins connect internally so check the wiki before multiplexing.

How do you program the RP2040 microcontroller on this development board?

Connect the Type-C USB cable, hold the BOOTSEL button while powering up, then drag a UF2 firmware file onto the mass-storage drive that appears.

When should the lithium battery connected to the recharge header be replaced?

Replace the lithium cell when it no longer holds enough charge for your mobile application; the onboard header supports recharge and discharge cycles.

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