This is a simple test of 4 Serial Ports of PL2303G, including simple read/write.
You can download the source code from our official website to further develop your own Android application.
https://www.prolific.com.tw/TW/CustomerLogin.aspx
Updated on
3 Sept 2025
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Data safety
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Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.