Waveshare ESP32-S3 1.47inch Dual Core 240MHz Processor Board vs IoTCrazy ESP32-WROOM-32U Dev Board with 3dBi Antenna
Updated August 2026 — The Waveshare ESP32-S3 offers advanced features for HMI applications, while the IoTCrazy board is a budget-friendly option with enhanced wireless range.
The Waveshare ESP32-S3 offers advanced features for HMI applications, while the IoTCrazy board is a budget-friendly option with enhanced wireless range.
Why Waveshare ESP32-S3 1.47inch Dual Core 240MHz Processor Board is better
Display
Waveshare has an onboard LCD screen.
Memory
Waveshare features 16MB Flash and 8MB PSRAM.
Power Management
Waveshare has flexible clock settings for low power consumption.
Why IoTCrazy ESP32-WROOM-32U Dev Board with 3dBi Antenna is better
Price
IoTCrazy is more affordable at C$18.99.
Wireless Range
IoTCrazy includes a detachable 3dBi antenna.
Beginner Friendly
IoTCrazy is fully compatible with Arduino IDE.
Overall score
Specifications
| Spec | Waveshare ESP32-S3 1.47inch Dual Core 240MHz Processor Board | IoTCrazy ESP32-WROOM-32U Dev Board with 3dBi Antenna |
|---|---|---|
| Display | Yes | No |
| Wi-Fi | 2.4GHz | 2.4GHz |
| Bluetooth | BLE 5 | BLE |
| USB Port | Full-speed | Standard |
| Development IDE | Custom | Arduino IDE |
Dimension comparison
Overview of the Products
In this comparison, we will look at the Waveshare ESP32-S3 1.47inch Dual Core 240MHz Processor Board and the IoTCrazy ESP32-WROOM-32U Dev Board with 3dBi Antenna. The Waveshare board is priced at C$28.99, while the IoTCrazy board is more budget-friendly at C$18.99. Both boards are designed for microcontroller development and cater to the growing demand for IoT applications, but they offer different features and capabilities that might appeal to various users.
Features and Specifications
The Waveshare ESP32-S3 features a dual-core 240MHz processor along with an onboard 1.47inch LCD screen, enabling the smooth execution of GUI programs. It boasts high-capacity Flash and PSRAM, with a total of 16MB Flash and 8MB PSRAM. In contrast, the IoTCrazy ESP32-WROOM-32U utilises a powerful dual-core MCU with 520KB SRAM, but it lacks an integrated display. Instead, it comes with a detachable 3dBi antenna, enhancing its wireless range significantly, making it well-suited for IoT and smart home projects.
Connectivity Options
Connectivity is crucial for microcontroller boards, and both products cater to this need but in different ways. The Waveshare board supports 2.4GHz Wi-Fi and Bluetooth BLE 5, making it versatile for various applications. Additionally, it has multiple IO interfaces and an onboard TF card slot for external storage. On the other hand, the IoTCrazy board is also equipped with Wi-Fi and Bluetooth capabilities, but its standout feature is the detachable 3dBi antenna that significantly improves Wi-Fi and BLE connectivity. This could be beneficial for projects requiring reliable long-range communication.
Development and Programming
Both boards support popular development environments, but they have different strengths. The Waveshare ESP32-S3 is designed for quick development, particularly for Human-Machine Interfaces (HMIs), thanks to its onboard display and extensive peripheral interfaces. This makes it suitable for developers who want to create applications with a user interface. Conversely, the IoTCrazy ESP32-WROOM-32U is fully compatible with the Arduino IDE and ESP-IDF, making it more beginner-friendly and ideal for rapid prototyping without the need for complex setups.
Power Management
Power management is an essential consideration, especially for IoT applications where devices often run on batteries. The Waveshare board features flexible clock settings and multiple power modes that help achieve low power consumption depending on the scenario. This adaptability can significantly extend battery life in low-power applications. In comparison, while the IoTCrazy board does not specify detailed power management features, its robust design and dual-core MCU are built to handle multitasking efficiently, which is essential for maintaining reliable performance in IoT applications.
Build Quality and Durability
When it comes to build quality, both products offer reliable designs but cater to different user preferences. The Waveshare ESP32-S3 features a sleek design with an acrylic sandwich panel that includes a built-in RGB LED for aesthetic appeal. This could attract users interested in creating visually engaging projects. The IoTCrazy board, on the other hand, comes securely packaged in an anti-static bag with foam protection, ensuring that it arrives without damage. The high-quality soldering of components indicates a focus on durability, making it a solid choice for long-term projects.
Target Audience
The target audience for these boards differs slightly. The Waveshare ESP32-S3 is particularly suited for developers focused on HMI applications, thanks to its LCD screen and user-friendly interfaces. This makes it a good option for those who want to create interactive devices. Conversely, the IoTCrazy ESP32-WROOM-32U is aimed at hobbyists and beginners who want to dive into IoT development without overwhelming complexity. Its compatibility with standard development environments and enhanced wireless range make it appealing for smart home enthusiasts and IoT project starters.
Price Comparison
Price plays a significant role in the decision-making process for many customers. The Waveshare ESP32-S3 is priced at C$28.99, which reflects its advanced features such as the LCD screen and higher memory capabilities. In contrast, the IoTCrazy ESP32-WROOM-32U is more affordable at C$18.99, making it a compelling option for those on a budget. The lower price point does not significantly sacrifice functionality, especially for users primarily interested in enhancing wireless connectivity.
Which should you buy?
Choosing between the Waveshare ESP32-S3 and the IoTCrazy ESP32-WROOM-32U ultimately depends on your specific project requirements and budget. If you need a board with a display, extensive memory, and features tailored for HMI applications, the Waveshare board may be the better choice despite its higher price. However, if you are looking for a budget-friendly solution that excels in wireless range and is beginner-friendly, the IoTCrazy board offers excellent value. Consider your project goals, budget, and desired features before making your final decision.
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