RS232 adapter with LED indicators
TXD and RXD lines are high level while idle – this is why LEDs are ON. During data transmission LEDs are blinking.
Read more: http://www.scienceprog.com/build-your-own-rs232-adapter-with-led-indicators/
TXD and RXD lines are high level while idle – this is why LEDs are ON. During data transmission LEDs are blinking.
Read more: http://www.scienceprog.com/build-your-own-rs232-adapter-with-led-indicators/
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