Waveshare 31522 ESP32-P4 4 Inch Round Touch Display Development Board 720 × 720 Resolution

This product is a high-performance development board based on the ESP32-P4 chip, featuring a dual-core plus single-core RISC-V architecture

1. 0 HS for high-speed connectivity and features an onboard 40-pin GPIO expansion header compatible with select Raspberry Pi HATs, enabling broader application adaptability. The ESP32-P4 chip integrates digital signature peripherals and a dedicated key management unit to ensure data and operational security; designed for high-performance and high-security applications, it fully meets the demanding requirements of embedded systems regarding HMI support, edge computing capabilities, and I/O connectivity. High-performance MCU featuring RISC-V 32-bit dual-core and single-core processors. 128 KB HP ROM, 16 KB LP ROM, 768 KB HP L2MEM, 32 KB LP SRAM, 8 KB TCM. Powerful image and audio processing capabilities; interfaces include a JPEG codec, Pixel Processing Accelerator (PPA), Image Signal Processor (ISP), and H.264 video encoder. 32 MB PSRAM stacked within the chip package; 32 MB NOR Flash integrated externally. Onboard peripheral interfaces include MIPI-CSI, MIPI-DSI, USB
2. 0 OTG HS, SDIO
3. 0 TF card slot, dual microphones (supporting echo cancellation), speaker terminals, and RTC battery terminals. Onboard 2 × 20 pin header exposing 28 additional programmable GPIOs. Security mechanisms: Secure Boot, Flash encryption, hardware encryption accelerators, and a hardware random number generator. It also supports hardware access protection, enabling Access Permission Management (APM) and separation of privileges. Specifications:. Resolution: 720 × 720 pixels (H×V). Color Gamut: 60% NTSC. Contrast Ratio: 1200:1. Touch Controller IC: GT9271. Communication Interface: MIPI 2-lane. Brightness: 350 cd/m2. Outline Dimensions: 126.00 × 126.00 (mm). Display Area: 101.52 × 101.52 (mm)