01 What this can become
Smart plugs, room sensors, a small gateway.
Use it to prove an idea when tutorials and modules are easy to buy.
CPU / main boards
ESP32-DevKitC
The usual first board. It can join Wi-Fi and talk to a phone.
CPU / main boards
Wi-Fi + BluetoothClassic ESP32
ESP32
02 Hardware
- Chip: ESP32 (dual-core Xtensa, often 240 MHz)
- Radio: Wi-Fi 4, Bluetooth Classic + BLE
- USB: on-board USB-UART for flash and logs
- I/O: two pin headers, 3.3V logic
- Watch: TX current spikes; keep metal away from the antenna.
03 When to pick it
Pick it when you need both Wi-Fi and a phone link, and the supply chain is mature. If you want native USB or less power, look at S3 / C3 / C6.
中文
主控 / CPU
ESP32-DevKitC
最常见的起步板。能上网，也能跟手机连。
主控 / CPU
Wi-Fi + 蓝牙经典 ESP32
ESP32
01 能做成什么
家用插座、环境传感、简单网关。
已经有大量教程和模组库存时，先用这一块验证想法。
02 硬件
- 芯片： ESP32（双核 Xtensa，常见 240 MHz）
- 无线： Wi-Fi 4，经典蓝牙 + BLE
- USB： 板载 USB-UART 下载和日志
- 引出： 两侧排针，3.3V 逻辑
- 注意： 发射电流较大，电源要留余量；天线侧不要靠金属。
03 什么时候选它
要 Wi-Fi 和手机近场都有、成本敏感、供应链成熟时选它。不需要经典蓝牙、想要更省电或 USB 原生时，看 S3 / C3 / C6。