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Elie Morisse

Member Since: May 30, 2014

Country: France

  • The design is pretty ingenious but shouldn't that work only in half-duplex? If the RS-232 device is sending a 0x00 byte (ie TX stays at a positive voltage), wouldn't the capacitor gets depleted if on the other end we're setting our TX (RX on the schematic) low hence the device's RX to +5V? Then the next "1" sent to the RS-232 would be 0V instead of -9V which seems rather problematic.

    It's still of great help whenever there's no MAX232-like ICs around but the description is misleading if it's not equivalent

No public wish lists :(