WT9932C5-TINY Feature Introduction

1. Introduction

In the TINY series from wireless-tag, WT9932C5-TINY is a high-performance and lightweight development board based on Espressif’s new-generation ESP32-C5. It is designed for IoT wireless communication, smart home devices, and high-concurrency application scenarios. The ESP32-C5 adopts a single-core 32-bit RISC-V architecture with a maximum frequency of 240 MHz, achieving an excellent balance between performance and power consumption. Compared with previous generations, the ESP32-C5 supports advanced Wi-Fi 6 (802.11ax) and Bluetooth 5.3, providing significant improvements in throughput, latency, anti-interference capability, and connection stability—ideal for multi-device parallel wireless networks.

The chip features built-in hardware encryption engines, secure boot, and other security mechanisms, making it suitable for security-critical devices such as smart locks and access control systems. As a compact open-source development board, WT9932C5-TINY integrates a USB-to-serial converter, an RGB indicator LED, RESET/BOOT buttons, and exposes all available IO pins. It also supports switching to a USB-to-serial tool by shorting EN and GND. With a compact PCB size of just 23 × 38 mm, it still offers a 1A LDO regulator output and a well-organized interface layout, providing an efficient and convenient development experience for learning, prototyping, and mass production validation.

1.1 🔧 Core Hardware Specifications

• Main Controller: ESP32-C5 (32-bit RISC-V, up to 240 MHz)
• Module: WT0132C5-S5 (integrated ESP32-C5 chip)
• Wireless: Wi-Fi 6 (802.11ax) + Bluetooth 5.3 dual-mode
• USB-to-Serial: On-board CH343P
• Buttons: RESET, BOOT (supports flashing mode)
• LED: 1 × WS2812 RGB LED (IO6)
• Power: LDO regulator, up to 1A output
• Interface: Dual-row 15P × 2 (30 pins total), all GPIOs fully exposed
• Connectors: USB-C, 2.54 mm pin headers (breadboard-friendly)
• Debug Mode: Short EN to GND to switch into USB-TTL mode

1.2 🛠️ Design Highlights

• Compact size (PCB: 23 × 38 mm), highly integrated: ESP32-C5 module, USB-to-serial, power system, RGB LED, and buttons all integrated into a small footprint—ideal for space-constrained IoT applications.
• Enhanced wireless capability: With dual-band Wi-Fi 6 and Bluetooth 5.3, it offers superior throughput, lower latency, and improved anti-interference over ESP32-C3/C2 series—suitable for smart home, remote communication, and data transmission.
• Convenient debugging, dual-purpose design: On-board CH343P eliminates the need for an external serial adapter; shorting EN and GND turns the board into a USB-to-serial tool.
• Improved status and function monitoring: On-board RGB LED, power indicator, and RESET/BOOT buttons help with network indication, program testing, and entering download mode.
• Stable power and expandability: 1A LDO ensures stable power for sensors and peripherals; all GPIOs are exposed for prototyping and expanded development.

1.3 📡 Typical Application Scenarios

1. High-concurrency smart home devices
   Such as gateways, smart panels, and wireless repeaters, leveraging Wi-Fi 6 for more stable multi-device connectivity.
2. Mid-to-long-range wireless communication devices
   Enhanced anti-interference and low-latency performance are suitable for industrial control and long-range sensing nodes.
3. Prototyping and educational projects
   Complete interfaces and RGB indication make it ideal for IoT courses, research projects, and rapid prototyping.
4. USB-to-Serial debugging tool
   Short EN-GND to use it as a USB-TTL device for debugging other MCU modules.

1.4 ⚙️ Development Advantages

• Supports Wi-Fi 6 and BLE 5.3 with higher throughput, lower latency, and better anti-interference
• On-board CH343P enables one-cable USB-C debugging
• All GPIOs exposed for sensor/peripheral expansion
• RGB LED available for example projects, status indication, and debugging
• EN-GND shorting switches board into USB-TTL mode for tool reuse
• Small size, low power, low cost—ideal for mass production validation and long-term deployment
• Full support for ESP-IDF, Arduino, FreeRTOS, and other ecosystems

2. Pin Description

2.1 Left Side Pins

2.2 Right Side Pins

3. Power Characteristics

You may power the WT9932C5-TINY series development board using any of the following methods:

• Supply power via the USB Type-C interface
• Use Dupont wires to connect to the VCC power input
• Use Dupont wires to connect to the 5V power input