The development board is a circuit board used for embedded system development, including a series of hardware components such as a central processing unit, memory, input devices, output devices, data paths/buses, and interfaces for external resources.When it comes to development boards, we must mention the price-performance king MCU – the ESP 32 development board.1. Powerful FunctionsThe biggest highlight is the built-in WiFi + Bluetooth! Let’s take a look at the specifications of the ESP32 to understand its strengths.● Built-in WiFi and Bluetooth means that there is no need for additional Ethernet or WiFi modules, making it highly integrated;● Dual Core CPU with a clock speed of 80, 160, or 240MHz. This is quite a lot of computing power for such a compact chip;● Advanced Peripheral Interfaces: I2C, SPI, CAN, etc., enabling a wide range of applications, not just a Wi-Fi MCU;
● Ample Memory: The ESP32 includes 512KB of on-chip SRAM and supports external memory, which may reach up to 4 to 8MB depending on the motherboard. This means the ESP32 is suitable for heavier tasks, such as connecting cameras, recognizing speech, and streaming data from the internet.
2. Affordable PriceThe ESP32 indeed has a very high cost-performance ratio! Not only is it powerful, but it is also inexpensive.Without counting flash, it costs only 9 yuan!What can you buy for 9 yuan these days?! But you can get an ESP32, allowing development enthusiasts to unleash their creativity.Moreover, amidst the pandemic’s impact, the semiconductor supply chain faces shortages, but the ESP 32 is not affected! No shortages, no price hikes, with such a high cost-performance ratio, what reason is there not to use it?3. Nearly Invincible in IoTSome netizens bluntly stated that in the IoT field, the ESP 32 might leave STM32 with no room to shine in the future. Although this view is somewhat biased, it is not entirely unreasonable.STM32 is a general-purpose chip with broader applications; while the ESP 32 is a dedicated IoT chip, its computing power, startup speed, stability, durability, and the number and types of operable IOs are all sufficient, making it incredibly useful.
First, the ESP32’s on-chip resources and pin interfaces are particularly rich, making it more than sufficient to create various smart devices for IoT scenarios.Currently, Wi-Fi is still the most widely used protocol for IoT products, while BLE and BLE Mesh have developed rapidly in the past two years, and Zigbee has gradually declined. The ESP32 supports both Wi-Fi and Bluetooth, and with its extremely high cost-performance ratio, its prospects are limitless.Secondly, among embedded developers, the ESP series chips are deeply rooted in people’s hearts, and there are many interesting developer projects available on platforms like Taobao/Bilibili in China and YouTube abroad.ESP8266 has too few resources and only supports Wi-Fi, while the price of the ESP32 is already very cheap. If you want to create a smart device, choosing the ESP32 is completely fine.Lastly, we are now in the era of IoT, and the developed smart devices should not just stay on the development board; we hope they can be remotely controlled and accessed.However, achieving full-chain development that includes smart device development, connecting to cloud services, and mobile device programs is still quite challenging. TheESP32 has a cloud-integrated full-chain development framework, making it very convenient for developing remote hardware applications, such as creating a gas/flame/formaldehyde detection device at home that sends alerts to your phone in case of danger.
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