i make a M5 radio time simulator

[zijie2543]

M5电波表授时器 / M5-RTS or M5 Radio Time Simulator：M5-RTS 是一个基于 M5Stack Cardputer 的便携式多协议电波表信号模拟器。它可以模拟全球主流的电波授时信号，帮助你在无信号覆盖区域或室内深处校准你的卡西欧、西铁城、精工等电波手表。
M5-RTS is a portable, multi-protocol Radio Controlled Clock (RCC) signal simulator based on M5Stack Cardputer. It allows you to sync your Casio, Citizen, Seiko, and other radio-controlled watches anywhere in the world, even without a real radio signal.
https://github.com/junelee220/m5-rts/