WT99P4C5-S1 Feature Introduction

1. Introduction

WT99P4C5-S1 is a high-performance multimedia development board launched by Shenzhen Wireless-tag Co., Ltd., based on the Espressif ESP32-P4 chip (RISC-V dual-core processor, main frequency 400MHz). The core board model is WT0132P4-A1. This development board focuses on full-featured interfaces and multimedia processing capabilities. Application scenarios cover smart home control, industrial HMI, medical equipment, security monitoring, and multimedia terminals, emphasizing low cost, low power consumption, and high integration, suitable for rapid prototyping of products such as IPC and AIoT.

1.1 🔧 Core Hardware Configuration

• Main Control Chip: Uses Espressif ESP32-P4 + ESP32-C5 dual-core heterogeneous architecture, integrating dual-band Wi-Fi 6 (802.11ax 2.4/5GHz) and Bluetooth 5.0 (BR/EDR + BLE) wireless communication, supporting high-throughput data transmission and low-latency IoT interaction. Simultaneously equipped with a RISC-V 400MHz high-performance processor, balancing RF stability and edge computing capabilities.

• Network Interface: Integrated RJ45 Ethernet port (achieving 10/100Mbps auto-negotiation via IP101GRI PHY chip), supporting high-speed wired network direct connection; simultaneously supports optional Wi-Fi 6 dual-band wireless module (2.4/5GHz 802.11ax), achieving wired/wireless dual-stack coordination, ensuring network redundancy and reliable transmission in industrial scenarios.

• Multi-protocol Data Channels: Natively supports six types of communication ports: Serial (UART×3), Ethernet, Wi-Fi 6, Bluetooth 5.0, USB 2.0 OTG, and RS-485. Developers can freely implement data routing and protocol conversion between ports (such as UART ↔ Ethernet passthrough) via ESP-IDF SDK, meeting customized industrial control logic requirements.

1.2 🛠️ Design Features

1. RS-485 interface, via SIT3088EESA transceiver. Functionality complies with TIA/EIA-485 standard, achieving 14Mbps independent transceiver. Connects to the ESP32-P4 chip on the WT0132P4-A1 core board via UART. Meets industrial communication requirements.
2. Onboard RJ45 Ethernet port, connected to the ESP32-P4 chip on the WT0132P4-A1 core board. Meets Ethernet communication requirements.
3. Full-speed USB 2.0 Type-C interface, can be developed via ESP-IDF.
4. Onboard power indicator LED and physical switch, convenient for power control.
5. High-speed USB 2.0 Type-C/Type-A interface.
6. Development board supports 4-bit mode MicroSD card, can store or play audio files from the MicroSD card.
7. MIPI CSI FPC connector (pitch 0.5mm, pin count 22) for connecting external camera modules, enabling image transmission.
8. MIPI DSI FPC connector (pitch 0.5mm, pin count 22) for connecting LCD expansion boards.
9. Onboard ES8311 low-power mono audio codec. I2S communication. Supports onboard microphone and speaker (maximum support 4 Ω 3.0W).
10. The ESP32-C5 on the WT0132P4-A1 core board connects to the ESP32-P4 chip via SIDO. Provides Wi-Fi 6 capability for the development board.

1.3 📡 Main Application Scenarios

• Industrial Control: Connect to PLC/sensors via RS-485 interface, Ethernet + Wi-Fi 6 dual-redundant networks ensure data transmission reliability.
• HMI Human-Machine Interaction: 7-inch RGB screen + capacitive touch support for localized monitoring interface development (based on embedded GUI frameworks like LVGL).
• Security and Visual Processing Terminal: MIPI-CSI/DVP dual camera interface supports 1080P@30fps image capture, paired with ESP32-P4's 400MHz RISC-V core for edge AI inference (e.g., face recognition).
• Smart Home Central Control System: ES8311 audio codec supports voice broadcast and local command recognition, combined with HMI Human-Machine Interaction to achieve: smart speaker with screen, home energy management host, etc.

1.4 ⚙️ Development Advantages

• Main control ESP32-P4 can be developed using Espressif SDK ESP-IDF. The ESP32-C5 can be controlled via AT commands.
• Co-processor ESP32-C5 can be further developed using ESP-IDF.
• Official basic function examples provided for easy learning and reference.

2. Pin Description

3. Power Characteristics

You can choose one of the following power supply methods for the WT99P4C5-S1 series development board:

• External power supply via the Type-C debugging interface;
• External power supply via the USB Type-C interface;
• External power supply via the USB Type-A interface;
• Use the 3V3 power input port and connect the corresponding voltage via Dupont wires;