ESP32-C5 5GHz/2.4GHz Dual-Band Wi-Fi 6 Dev Board vs Waveshare ESP32-S3 ETH Development Board

Price Comparison

The ESP32-C5 5GHz/2.4GHz Dual-Band Wi-Fi 6 Dev Board is priced at £14.39, while the Waveshare ESP32-S3 ETH Development Board costs £27.99. This price difference of £13.60 makes the ESP32-C5 a more budget-friendly option for developers seeking a versatile development board. While the ESP32-S3 offers additional features, the significant price gap may sway those with tighter budgets or those who prioritise cost-effectiveness in their projects.

Processor and Performance

The ESP32-C5 features a RISC-V 32-bit processor that operates at up to 240MHz, while the ESP32-S3 is built on a dual-core Xtensa 32-bit LX7 processor, also running at 240MHz. Although both processors provide similar clock speeds, the architecture difference may impact performance in specific applications. The ESP32-S3's dual-core advantage could benefit multitasking or complex processing needs, making it preferable for more demanding projects, while the ESP32-C5 remains suitable for general development tasks.

Memory and Storage

In terms of memory, the ESP32-C5 has 384KB of S-RAM, 320KB of ROM, and a substantial 16MB of Flash memory, along with 8MB of PSRAM. On the other hand, the ESP32-S3 is equipped with 512KB of S-RAM, 384KB of ROM, 16MB of Flash, and 8MB of PSRAM. This means the ESP32-S3 has a notable advantage in S-RAM, which may enhance its performance in memory-intensive applications. Both boards offer ample Flash memory, but the extra S-RAM in the ESP32-S3 can be crucial for applications that demand higher memory resources.

Connectivity Options

The ESP32-C5 supports dual-band Wi-Fi 6, allowing communication over both 2.4GHz and 5GHz frequencies. It also integrates Bluetooth 5 and IEEE 802.15.4 for Zigbee and Thread protocols. Conversely, the ESP32-S3 is limited to 2.4GHz Wi-Fi and Bluetooth 5. While the ESP32-S3 includes an onboard W5500 Ethernet chip for wired connectivity and optional Power over Ethernet (PoE) capabilities, the ESP32-C5's dual-band Wi-Fi could provide better wireless performance in environments with multiple devices competing for bandwidth.

Development Features

Both development boards include USB Type-C ports for ease of use, which simplifies programming and power supply. The ESP32-C5 supports various development frameworks, including ESP-IDF and Arduino IDE, facilitating rapid prototyping. The ESP32-S3 also provides compatibility with these frameworks and adds an onboard camera interface for image and video capture. This feature could be particularly advantageous for developers focusing on applications involving visual data, making the ESP32-S3 more appealing for specific project types.

Power Management

The ESP32-C5 features an onboard battery recharge management module and a reserved header for an external 3.7V Lithium battery. This design allows for greater flexibility in portable applications where battery life is crucial. In contrast, while the ESP32-S3 includes features for external connectivity and a PoE module, it does not specifically mention battery management or portable functionality. Therefore, for projects requiring battery-operated solutions, the ESP32-C5 may be the better choice due to its integrated power management.

Use Cases

The ESP32-C5 shines in IoT scenarios as a flexible multi-protocol device, making it ideal for smart gateways and device integration. Its dual-band Wi-Fi capabilities enhance its effectiveness in congested environments. Meanwhile, the ESP32-S3 is well-suited for applications requiring high-performance processing, especially those involving camera integration or Ethernet connectivity. The choice of board largely depends on the specific project requirements; the ESP32-C5 is excellent for general IoT development, while the ESP32-S3 caters to more specialised applications.

Which should you buy?

Choosing between the ESP32-C5 and the ESP32-S3 ultimately hinges on your project requirements and budget. If cost is a primary concern and your needs are relatively straightforward, the ESP32-C5, with its £14.39 price tag and robust feature set, provides excellent value. However, if your project requires more processing power, enhanced memory capabilities, or specific features like a camera interface and Ethernet support, the ESP32-S3, priced at £27.99, may justify the higher cost. Each board has distinct advantages, making the best choice dependent on your specific development goals and constraints.