念慈菴

USB2COM

 
Overview

CH552G USB to dual UART

Compatible with ch551/ch552/ch554

Use software to simulate UART and elicit DTR and RTS at the same time
The firmware is modified based on https://github.com/diodep/ch55x_dualserial . The io ports of DTR and RTS are changed and two breathing lights are added. DTR and RTS will be invalid when using the original firmware.
参考设计图片
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Update:2025-06-19 15:58:46

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