Ref. [Raspberry Pi Picoでデュアルコアを使ってみる_JP](https://rikoubou.hatenablog.com/entry/2022/09/08/153621)
```
/* Core 0 */
void setup() {
}
void loop() {
}
/* Core 1 */
void setup1() {
}
void loop1() {
}
```
## Seeed Studio Xiao ESP32C3
Ref. [Seeed Studio XIAO ESP32C3でBLE ① Arduino IDEで準備_JP](https://www.denshi.club/cookbook/arduino/xiao-esp32c3/seeed-studio-xiao-esp32c3ble-1-arduino-ide.html)
[How to use Seeed Studio XIAO in your PCB Design](https://www.seeedstudio.com/blog/2022/08/19/how-to-use-seeed-studio-xiao-in-your-pcb-design/)
-[Seeed Studio XIAO Series Package and PCB Design](https://www.seeedstudio.com/blog/wp-content/uploads/2022/08/Seeed-Studio-XIAO-Series-Package-and-PCB-Design.pdf)
-[Seeed Fusion PCBA Open Parts Library: Component Library for Autodesk Eagle](https://github.com/SeeedFusion/OPL_Eagle_Library)