SCINTIX P4 is an ESP32-P4 RISC-V Compute Module with an ESP32-C6 for wireless connectivity that’s compatible with Raspberry Pi CM4/CM5 carrier boards, at least partially.

It should be the first MCU-based system-on-module in Raspberry Pi CM4/CM5 form factor, and RELOC says the SCINTIX P4 gives access to displays, cameras, Ethernet, USB, and all the peripherals the ESP32-P4 exposes when connected to a carrier board. It can also be programmed in standalone mode through its built-in USB Type-C port.

SCINTIX P4 (RM-CMP4) specifications:

• SoC – Espressif Systems ESP32-P4NRW32X
  •  CPU
    • Dual-core RISC-V @ 400 MHz with AI instruction extensions and single-precision FPU
    • Single-core RISC-V LP (low-power) MCU @ up to 40 MHz
  • GPU – 2D Pixel Processing Accelerator (PPA)
  • VPU – H.264 and JPEG codecs support
  • Memory – 768 KB HP L2MEM, 32 KB LP SRAM, 8 KB TCM, 32MB PSRAM
  • Storage – 128 KB HP ROM, 16 KB LP ROM
• Storage – 32MB SPI NOR flash
• Networking
  • Microchip KSZ8091RNACA Fast Ethernet transceiver
  • 2.4 GHz Wi-Fi 6, Bluetooth 5, and 802.15.4 (Zigbee / Thread / Matter) via ESP32-C6 module connected via  SDIO + UART to the ESP32-P4
• USB – 1x USB Type-C port for power and programming
• 2x 100-pin Hirose DF40C-100DO-0.4V(51) B2B connectors compatible with Raspberry Pi CM4/CM5 carrier boards
  • Display – 2-lane MIPI DSI
  • Camera – 2-lane MIPI CSI
  • Networking – 10/100Mps Ethernet
  • USB – USB 2.0 OTG
  • I/Os – 40x GPIO
• Power Supply  – 5V DC input via USB-C port or B2B connectors
• Dimensions – 55.0 × 40.0 × 5.0 mm; 8 mm thick including 1.27 mm programming connectors
• Weight – 8.2 grams
• Temperature Range – -20 to 70°C

While it looks neat, in practise, you’d lose HDMI and PCIe interfaces, USB is limited to 2.0 speed (480 Mbps), and Ethernet to 100 Mbps. It still exposes MIPI CSI/DSI camera and display interfaces and GPIOs. In our article about the ESP32P4C5 Core Board with two Raspberry Pi-compatible MIPI connectors, we noted that ESP32-P4 could only support the original Raspberry Pi Camera Module (OV5647), but not the more recent Sony IMX-based modules, and the situation is better for the official Raspberry Pi displays, although this requires an out-of-tree library, at least for now.

On the software side, it will obviously not run Raspberry Pi OS, and instead, RELOC mentions full compatibility with Espressif’s ESP-IDF SDK and demos,  and Arduino and PlatformIO support out of the box. As an upcoming crowdfunding campaign, nothing has been released yet, but RELOC promises schematics, Bill of Materials, pinout diagrams, 3D mechanical models, firmware examples covering the main features of the board (Wi-Fi / BLE, Ethernet, display, camera, etc.), a complete demo project showcasing the full board capabilities, and component libraries compatible with CAD tools such as KiCad. There’s no video demo of the solution either for now.

RELOC has set up a page on Crowd Supply for a future launch, but I also noticed the product page on the RELOC website says that the SCINTIX P4 is available and to contact them for pricing.

Jean-Luc Aufranc (CNXSoft)

Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.

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SCINTIX P4 是一款基于 ESP32-P4 RISC-V 的计算模块，配备 ESP32-C6 提供无线连接，至少部分兼容 Raspberry Pi CM4/CM5 载板。

这应该是首款采用 Raspberry Pi CM4/CM5 外形尺寸的基于 MCU 的系统级模块，RELOC 表示 SCINTIX P4 在连接载板后可访问显示屏、摄像头、以太网、USB 以及 ESP32-P4 暴露的所有外设。它还可以通过内置的 USB Type-C 端口以独立模式进行编程。

SCINTIX P4 (RM-CMP4) 规格：

• SoC – 乐鑫科技 ESP32-P4NRW32X
  • CPU
    • 双核 RISC-V @ 400 MHz，带有 AI 指令扩展和单精度 FPU
    • 单核 RISC-V LP（低功耗）MCU @ 最高 40 MHz
  • GPU – 2D 像素处理加速器 (PPA)
  • VPU – 支持 H.264 和 JPEG 编解码器
  • 内存 – 768KB HP L2MEM、32KB LP SRAM、8KB TCM、32MB PSRAM
  • 存储 – 128KB HP ROM、16KB LP ROM
• 存储 – 32MB SPI NOR 闪存
• 网络
  • Microchip KSZ8091RNACA 快速以太网收发器
  • 2.4 GHz Wi-Fi 6、蓝牙 5 和 802.15.4（Zigbee / Thread / Matter），通过 ESP32-C6 模块经 SDIO + UART 连接至 ESP32-P4
• USB – 1 个 USB Type-C 端口，用于供电和编程
• 2 个 100 针 Hirose DF40C-100DO-0.4V(51) B2B 连接器，兼容 Raspberry Pi CM4/CM5 载板
  • 显示 – 2 通道 MIPI DSI
  • 摄像头 – 2 通道 MIPI CSI
  • 网络 – 10/100Mbps 以太网
  • USB – USB 2.0 OTG
  • I/O – 40 个 GPIO
• 电源 – 通过 USB-C 端口或 B2B 连接器提供 5V 直流输入
• 尺寸 – 55.0 × 40.0 × 5.0 mm；包含 1.27 mm 编程连接器时厚度为 8 mm
• 重量 – 8.2 克
• 温度范围 – -20 至 70°C

虽然看起来简洁，但实际上你会失去 HDMI 和 PCIe 接口，USB 局限于 2.0 速度（480 Mbps），以太网限制为 100 Mbps。它仍然提供 MIPI CSI/DSI 摄像头和显示接口以及 GPIO。在我们关于 ESP32P4C5 Core Board 具有两个兼容 Raspberry Pi 的 MIPI 连接器 的文章中，我们指出 ESP32-P4 仅能支持原始的 Raspberry Pi 摄像头模块 (OV5647)，而非更新的基于 Sony IMX 的模块。对于官方 Raspberry Pi 显示屏，情况稍好，但这至少目前需要 一个外部库。

在软件方面，它显然无法运行 Raspberry Pi OS，而 RELOC 表示完全兼容乐鑫的 ESP-IDF SDK 和演示，并开箱即用支持 Arduino 和 PlatformIO。作为即将进行的众筹项目，目前尚未发布任何内容，但 RELOC 承诺提供原理图、物料清单、引脚图、3D 机械模型、涵盖主板主要功能（Wi-Fi / BLE、以太网、显示、摄像头等）的固件示例、展示主板全部功能的完整演示项目，以及与 KiCad 等 CAD 工具兼容的组件库。目前也还没有该解决方案的视频演示。

RELOC 已在 Crowd Supply 上为即将推出的产品设立页面，但我也注意到 RELOC 网站上的产品页面 显示 SCINTIX P4 已有供货，需联系他们获取报价。

Jean-Luc Aufranc (CNXSoft)

Jean-Luc 于 2010 年作为兼职开始了 CNX Software，之后辞去软件工程经理的职务，并于 2011 年下半年开始全职撰写每日新闻和评测。

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