![]() I intend to experiment some projects around serial in the coming days and i was not started it right :) Thanks for pointing me back to the right direction ! ![]() I was misled by the fact I could measure around 6v on some pairs. (googling around, ttl is mentionned thus with this chipset). This converter uses a prolific 2303 chipset. Oki indeed it seems my converter is RS232, not TTL ( ). The Arduino will expect 0V for '0' and between 3.5V-5V for '1'. Also, what I mean by polarity is that RS232 uses a -negative or low voltage to represent a '1' and a high positive voltage to represent a '0'. RS232 signals are not normally 0V to 5V, they usually range from -10 to 10 (or more). What do you mean with the polarity? tx + gnd wire should give me 5v, same for rx + gnd not? and i thouht that then the rx or tx should be my positive wire and gnd my negative wire? or am I completely wrong?
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