: for the blue one you describe and linked above…i use it on my pi and it is quite fine to use on headless applications …for windows …or linux just use minicom as the console for it or putty if you wish …either work with the blue unit… the difference is the one in this thread is 5v or 3.3 volt adjustable logic state level …but u must dismantle the case and swap the voltage pin over…
have a read…@ Reymund15
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