The **EPC-R3720** is an industrial-grade RISC-based Box Computer developed by Advantech. It is specifically designed for Edge AI applications, leveraging the power of the NXP i.MX 8M Plus processor. Below is a detailed breakdown of its electronic components and hardware specifications. --- ### 1. Core Processing Unit The heart of the EPC-R3720 is the NXP i.MX 8M Plus SoC, which integrates high-performance computing with dedicated AI acceleration. | Component | Specification | | :--- | :--- | | **CPU** | Quad-core ARM Cortex-A53 (up to 1.8 GHz) | | **Co-Processor** | ARM Cortex-M7 (for real-time tasks) | | **NPU (Neural Processing Unit)** | 2.3 TOPS (Trillion Operations Per Second) | | **GPU** | Vivante GC7000UL (OpenGL ES 3.1, Vulkan, OpenCL 1.2) | --- ### 2. Memory and Storage The system uses high-reliability integrated memory and storage to withstand industrial environments. * **System Memory:** Up to 6GB LPDDR4 (standard models often come with 4GB). * **Flash Storage:** 16GB or 32GB eMMC for the OS and bootloader. * **Expansion Storage:** * 1x MicroSD Slot. * Optional M.2 support for additional SSD capacity. --- ### 3. Connectivity and I/O Interfaces The electronic layout is optimized for industrial automation and sensing. | Interface Type | Quantity/Details | | :--- | :--- | | **Ethernet** | 2x GbE (1x supporting TSN - Time Sensitive Networking) | | **USB** | 2x USB 3.2 Gen 1, 1x USB 2.0 (Internal header) | | **Display** | 1x HDMI 2.0 (up to 4K resolution) | | **Serial Ports** | 2x RS-232/422/485 (Software selectable) | | **CAN Bus** | 1x CAN FD (Flexible Data-rate) | | **GPIO** | 8-bit General Purpose I/O | --- ### 4. Wireless and Expansion Slots The PCB includes several M.2 slots to allow for modular hardware upgrades: * **M.2 2230 (E-Key):** Typically used for Wi-Fi and Bluetooth modules. * **M.2 3042/3052 (B-Key):** Used for 4G LTE or 5G cellular connectivity (includes a Nano-SIM slot). --- ### 5. Electrical Power and Environmental Designed for harsh deployments, the electronic components are rated for high thermal tolerance and power stability. * **Power Input:** 12V ~ 24V DC input. * **Operating Temperature:** 0 ~ 60°C (Standard) or -40 ~ 70°C (Extended/Industrial). * **Power Consumption:** Typically around 5W to 12W depending on NPU load. --- ### 6. Example Code: Interacting with GPIO To interact with the electronic pins via the Linux OS (typically Yocto or Debian), you can use the `sysfs` interface or specific libraries: ```bash # Example: Exporting a GPIO pin for a digital sensor echo "496" > /sys/class/gpio/export echo "out" > /sys/class/gpio/gpio496/direction echo "1" > /sys/class/gpio/gpio496/value ``` ---