![]() ![]() Here TTL signal can be obtained by T2IN Pin from the microcontroller and this pin is connected to Pin2 of DB-9 port of your computer like Rxd. Pin-7(T2OUT): It provides the converted TTL signal in the form of RS-232.Pin-6(Vs-): The negative terminal of a capacitor is connected to this pin & 5 volts is provided to the positive terminal of the capacitor.Pin-5(C2-): The negative terminal of a capacitor is connected where the positive terminal is connected to Pin4.Pin-4(C2+): The positive terminal of a capacitor is connected to this pin.Pin-3(C1-): The negative pin of the capacitor is connected to this pin and the positive pin is connected to pin1.Pin-2(Vs+): The capacitor’s positive leg is connected to it by grounding the negative leg.Pin-1(C1+): The positive terminal of a capacitor is connected to this pin.
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