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by masharif46
Wed May 20, 2015 6:53 pm
Forum: Open Hardware
Topic: Arduino_GPRS_Shield
Replies: 1
Views: 5346

Arduino_GPRS_Shield

hello,

I want to connect with AT89C52 Microcontroller. My program is ready . but I can't find Tx and Rx port for microcontroller to GSM . Because in This GSM total 4 Tx and Rx port .

1. Software Tx and Rx port.
2. Hardware Tx and Rx port
3. Serial Tx and Rx port
4. UART Tx and Rx port

This 4 Tx ...

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