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Small round LCD module 1.47 inch IPS screen 172 by 320 pixels SPI connector gold pins on green PCB

WaveShare

WaveShare 1.47inch Round LCD Display Module 172x320 SPI

SKU CH-JPXG-BKV4V

Round 1.47inch IPS LCD with 172×320 resolution, 262K colours and SPI interface for Raspberry Pi, Arduino or STM32

  • CPU TypeOther
  • 47inch round IPS screen gives 172×320 resolution for sharp visuals
  • 262K RGB colours deliver vivid images on a 17.39×32.35 mm display
  • SPI interface uses few IO pins and works with Raspberry Pi, Arduino, STM32
  • 3V or 5V supply voltage matches common controller boards
  • Ready-to-run examples for Raspberry Pi, Arduino and STM32 speed up development

1.47inch Round LCD for Embedded Projects

This 1.47inch round LCD module delivers a 172×320 pixel IPS panel with 262K RGB colours for clear, colourful readouts. The SPI interface keeps pin count low, so it connects directly to Raspberry Pi, Arduino or STM32 boards without extra level-shifting hardware. Development examples are included to accelerate firmware integration.

Low-Power 3.3V/5V Operation

The module runs from a single 3.3V or 5V rail, drawing minimal current for battery-powered or USB-fed devices. The ST7789V3 driver handles refresh internally, so the host processor stays idle most of the time. No backlight control circuitry is required on the main board, reducing both component count and thermal load.

Compact 22.0×38.5mm Footprint

At 22.0 by 38.5mm the board fits tight enclosures and leaves PCB area free for sensors, radios or additional displays. Four mounting holes simplify mechanical integration without custom brackets. The 17.39×32.35mm active area sits behind a durable cover glass, protecting the IPS panel from scratches during assembly and field use.

Highlights

  • 47inch round IPS screen gives 172×320 resolution for sharp visuals
  • 262K RGB colours deliver vivid images on a 17.39×32.35 mm display
  • SPI interface uses few IO pins and works with Raspberry Pi, Arduino, STM32
  • 3V or 5V supply voltage matches common controller boards
  • Ready-to-run examples for Raspberry Pi, Arduino and STM32 speed up development

Specifications

CPU TypeOther

Questions about this item

How do I wire the SPI pins to a Raspberry Pi and which voltage level do I set?

Connect the module's SPI pins to the Pi's hardware SPI bus (MOSI, MISO, SCLK, CS, DC, RST) and power it from the 3.3 V rail; the board accepts 3.3 V or 5 V but logic must match the supply voltage or the display will not work.

What component is most likely to need replacement after long-term operation?

The ST7789V3 driver IC and the IPS liquid-crystal panel are the only active parts; the backlight LEDs will dim first after many thousands of hours, so plan to replace the whole module when brightness drops.

At what point does the 3.3 V supply become a bottleneck during continuous updates?

The SPI interface and ST7789V3 driver run at 3.3 V logic; sustained full-frame refreshes at 172×320 resolution draw constant current, so voltage droop on a weak regulator will cause missing pixels or frozen frames before any thermal limit appears.

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