LILYGO T-Halow-P4

📦 Project Versions

T-Halow-P4 is a high-performance upgrade version of the T-Halow series, based on ESP32-P4 main controller, integrating ESP32-C6 auxiliary processor and T-Halow module. Please select the corresponding documentation based on your needs:

Note: T-Halow-P4 and T-Halow use the same AT Command Set.

Regarding the SDK for the TX-AH module, Taixin provides non-OS drivers, refer to: taixin-nonos-driver

🚀 Product Overview

LILYGO T-Halow-P4 is a high-performance IoT development board based on ESP32-P4 main controller, integrating ESP32-C6 auxiliary processor and T-Halow long-range communication module. Designed for scenarios requiring high-performance processing, long-range communication, and multimedia applications, suitable for intelligent security, industrial monitoring, remote inspection, and other professional applications.

Core Features

• ✅ High-Performance Processing: ESP32-P4 main controller, supports complex graphics and video task processing
• ✅ Dual-Core Collaboration: ESP32-C6 auxiliary processor, supports Wi-Fi 6 and Bluetooth 5.3
• ✅ Long-Range Communication: T-Halow module supports Wi-Fi HaLow (802.11ah)
• ✅ Multimedia Interfaces: Onboard MIPI-DSI display interface and MIPI-CSI camera interface
• ✅ Image Processing: Supports JPEG image decoding (1080P 30fps), PPA, 2D DMA
• ✅ Video Encoding: Supports H264 encoding, JPEG encoding, 1080P video
• ✅ Rich Peripherals: Supports SPI, I2S, I2C, LED PWM, Ethernet, etc.

📊 Hardware Specifications

Pin Definition (PINMAP)

I2C Pins:

• I2C_SCL: IO8
• I2C_SDA: IO7

Halow Module Pins:

• AH_CMD: IO44
• AH_CLK: IO43
• AH_D3: IO42
• AH_D2: IO41
• AH_D1: IO40
• AH_D0: IO39
• AH_TX: IO12
• AH_RX: IO13

ESP32-C6 Pins:

• ESP32C6_CMD: IO19
• ESP32C6_CLK: IO18
• ESP32C6_D3: IO17
• ESP32C6_D2: IO16
• ESP32C6_D1: IO15
• ESP32C6_D0: IO14
• ESP32C6_WAKEUP: IO6

Camera/Display Pins:

• TOUCH_SCL: IO8
• TOUCH_SDA: IO7
• TOUCH_INT: IO11
• TOUCH_RST: IO10
• MIPI_DSI_RST: IO9

                                   GND                                                                   GND
                ┌────────────────────────────────────────────────┐             ┌─────────────────────────────────────────────────────────┐
                │                                                │             │                                                         │
                │                                                │             │                                                         │
                │                                                │             │                                                         │
                │                                                │             │                                                         │
                │                                                │             │                                                         │
                │                                                │             │                                                         │
                │                                                │             │                                                         │
                │                                                │             │                                                         │
                │                                ┌───────────────┴─────────────┴──────────────────┐                                      │
                │                                │                                                │                           ┌──────────┴───────────┐
                │                                │                                                │      DSI DATA 1P          │                      │
                │                                │                                                ├───────────────────────────┤                      │
    ┌───────────┴─────────┐ CSI DATA 1P          │                                                │                           │                      │
    │                     ├──────────────────────┤                                                │      DSI DATA 1N          │                      │
    │                     │                      │                                                ├───────────────────────────┤                      │
    │                     │ CSI DATA 1N          │                  ESP32-P4                      │                           │                      │
    │       Camera        ├──────────────────────┤                                                │      DSI CLK N            │      LCD Screen      │
    │                     │                      │                                                ├───────────────────────────┤                      │
    │                     │ CSI CLK N            │                                                │                           │                      │
    │                     ├──────────────────────┤                                                │      DSI CLK P            │                      │
    │                     │                      │                                                ├───────────────────────────┤                      │
    │                     │ CSI CLK P            │                                                │                           │                      │
    │                     ├──────────────────────┤                                                │      DSI DATA 0P          │                      │
    │                     │                      │                                                ├───────────────────────────┤                      │
    │                     │ CSI DATA 0P          │                                                │                           │                      │
    │                     ├──────────────────────┤                                                │      DSI DATA 0N          │                      │
    │                     │                      │                                                ├───────────────────────────┤                      │
    │                     │ CSI DATA 0N          │                                                │                           │                      │
    │                     ├──────────────────────┤                                                │                           └──────────────────────┘
    │                     │                      │                                                │
    └───────┬──┬──────────┘                      │                                                │
            │  │           I2C SCL               │                                                │
            │  └─────────────────────────────────┤                                                │
            │              I2C SDA               │                                                │
            └────────────────────────────────────┤                                                │
                                                 └────────────────────────────────────────────────┘

📡 Technical Features Introduction

Wi-Fi HaLow (802.11ah)

Wi-Fi HaLow is a long-range, low-power Wi-Fi standard optimized for IoT. With the same transmission power, it offers longer transmission distance and stronger wall penetration capability compared to traditional 2.4GHz/5GHz Wi-Fi.

T-Halow-P4 equipped with Taixin TX-AH module supports:

• Operating frequency band: 730–950MHz
• Channel bandwidth: 1/2/4/8MHz adjustable
• Physical throughput: 150Kbps – 32.5Mbps
• Transmission distance: Up to several kilometers (depending on environment)

ESP32-P4 High-Performance Processing

ESP32-P4 is a high-performance processor designed for complex graphics and video tasks:

• Supports JPEG image decoding (1080P 30fps)
• Pixel Processing Accelerator (PPA)
• 2D DMA image accelerator
• Supports H264 and JPEG video encoding

ESP32-C6 Wireless Connectivity

ESP32-C6 provides advanced wireless connectivity capabilities:

• Supports Wi-Fi 6 (802.11ax)
• Bluetooth 5.3
• Uses esp-hosted-mcu solution
• Communicates with ESP32-P4 via SDIO

🔄 Quick Start

Development Environment Setup

The project examples are compiled in ESP-IDF v5.4.1 environment. When using T-Halow-P4, ensure ESP-IDF version ≥ 5.4.1.

Environment Setup Steps:

1. Install ESP-IDF v5.4.1+ (refer to official documentation)
2. Clone T-Halow-P4 project repository
3. Enter examples directory and select example program

Project Compilation and Flashing

Compilation Steps:

cd ~/examples/xxx
idf.py set-target esp32p4
idf.py build

Download Mode Setup:

1. Plug in USB, open serial port tool
2. Hold BOOT button without releasing
3. Press RST button and release immediately
4. Serial output "wait for download" indicates entering download mode
5. Release BOOT button, close serial port

Program Flashing:

idf.py -p PORT flash

Halow Module Usage

Halow module connects to ESP32-P4 via SPI + UART:

• SPI: For data transmission, using Taixin official drivers
• UART: For sending/receiving AT commands and displaying runtime information

Data transmission link:

ESP32P4 -> SPI/SDIO -> Halow -> RF(AP) -> RF(STA) -> SPI/SDIO -> Halow -> ESP32P4

📚 Official Documentation (English)

For more information about the TX-AH module, please visit Taixin's official website: Resources Download

📊 TX-AH Model Comparison

Remarks:

1. Differences between P series modules and early A series modules:
   • (1) P series bottom-left silkscreen starts with P, A series starts with R
   • (2) P series PIN4/5 require power supply, A series do not
2. Modules default without shielding case, shielded versions add -S suffix to module name (S indicates Shield)

🚀 Quick Start

🟢 PlatformIO is recommended as these examples were developed on PlatformIO. 🟢

PlatformIO Development Environment

1. Install Visual Studio Code and Python, clone or download this project;
2. Search for and install the PlatformIO extension in VSCode extensions;
3. Restart VSCode after installation;
4. Open this project, PlatformIO will automatically download required third-party libraries and dependencies, first-time process may take longer, please be patient;
5. After all dependencies are installed, open the platformio.ini configuration file, uncomment and select example programs in example, then press Ctrl+S to save;
6. Click ☑️ at the bottom of VSCode to compile the project, insert USB and select COM port in VSCode;
7. Finally click ➡️ button to download the program to Flash;

Arduino IDE Development Environment

1. Install Arduino IDE

2. Copy and paste all files from this project/lib/ to Arduino library path (usually C:\\Users\\username\\Documents\\Arduino\\libraries);

3. Open Arduino IDE, click File -> Open in the upper left corner, open the example under this project/example/xxx/xxx.ino;

4. Configure Arduino as follows, then click the upper left button in Arduino to compile and download;

🧭 Application Scenarios

• 🏭 Industrial Security Monitoring: High-performance image processing + HaLow long-range communication
• 🌾 Agricultural Environmental Monitoring: Large-scale farmland sensor data collection and remote monitoring
• 🏗️ Construction Site Inspection: Long-range video inspection and equipment status monitoring
• 🔬 Scientific Field Data Collection: Long-range reliable data transmission and multimedia processing
• 📡 IoT Gateway: Connecting large numbers of low-power sensor nodes
• 🎥 Smart Camera: Remote monitoring system supporting H264 encoding

⚠️ Important Notes

❗ For more TX-AH module resources, please refer to Taixin's official website: Resources Download Address

📚 Resources Download

Official Documentation

• T-Halow-P4 GitHub Repository
• Taixin non-os WiFi Driver Development Guide
• Taixin AH Module AT Command Development Guide
• AT Command Set Documentation

Development Resources

• ESP-IDF Official Documentation
• Taixin Driver Download
• AH-V1.6-SDK Instructions

Dependencies

• espressif/esp_hosted^1.4.1
• espressif/esp_wifi_remote^0.8.5
• espressif/esp_lcd_ek79007^1.0.2
• lvgl/lvgl