WT9932P4-TINY Feature Introduction

⚠ Note: Due to power design, the FPC pin sequence is reversed compared to traditional Raspberry Pi. Carefully check the FPC pin sequence in the layout diagram when connecting.

1. Introduction

The WT9932P4-TINY from Wireless-tag's TINY open-source development board series is a pure microcontroller development board based on Espressif's ESP32-P4, focusing on compact and lightweight application scenarios. The ESP32-P4 is Espressif's new generation high-performance, low-power MCU, featuring a dual-core RISC-V processor with a maximum frequency of 400MHz, integrating rich peripherals and interface resources, supporting high-speed communication such as USB 2.0 OTG, MIPI CSI/DSI, SDIO, Ethernet, CAN FD, etc. It also includes built-in AI accelerator and graphics acceleration engine, capable of handling complex tasks like voice recognition, image processing, and edge computing. Its flexible storage expansion solution is compatible with PSRAM, external Flash, and large-capacity memory mapping, suitable for multi-tasking and large-scale application development. The design purpose of WT9932P4-TINY is to help developers quickly get started with ESP32-P4, providing a cost-effective, compact, and easy-to-learn-and-practice development platform in the open-source ecosystem.

1.1 🔧 Core Hardware Configuration

• Core Module: The development board uses Wireless-tag's WT0132P4-A1 module, which integrates core functions such as DCDC power supply, crystal oscillator, and Flash, greatly simplifying peripheral circuit design, allowing the development board to be designed with only two layers.
• MIPI Interface: The development board brings out MIPI CSI and MIPI DSI interfaces. The interfaces use the same pin sequence as Raspberry Pi, facilitating subsequent screen and camera development.
• SD Card Interface: The back of the development board supports 4-line SDIO. Users can solder and use the 4-line SD card interface themselves, making it convenient to use SD cards.

1.2 🛠️ Design Features

1. Core Configuration: Centered around the high-performance Espressif ESP32P4 chip, meeting embedded development performance requirements.
2. Compact Size: Only 69x28mm small specification, suitable for space-constrained application scenarios.
3. Stable Design: Built based on the WT0132P4‑A1 module, using two-layer board design, ensuring stability while reducing costs.
4. Image Interfaces: Onboard MIPI DSI and CSI FPC interfaces, supporting display output and image capture functions.
5. Flexible Expansion: All pins are brought out, pin headers support breadboard connection, facilitating peripheral expansion.
6. Status Indication: Equipped with onboard RGB LED, enabling multi-color status indication and interactive effects.
7. Convenient Interfaces: Features Type‑C FUSB and HUSB interfaces, offering fast transmission and support for reversible plugging, convenient for debugging and power supply.

2. Pin Description

Left Pin Header:

Right Pin Header:

3. Power Characteristics

You can choose one of the following power supply methods for the WT9932P4-TINY series development board:

• External power supply via the FUSB interface;
• External power supply via the HUSB interface;
• Use the 5V power input port and connect the corresponding voltage via Dupont wires;