TX and RX pins on the SIM800H GPRS Shield
Account cancelled 2016-08-20 08:21:11 1683 Views1 Replies I have just received the SIM800H GPRS Shield for the Arduino.
This shield has the SIM800H chip which should have TX and RX pins. Can anyone advise where these TX and RX pins are exposed on this shield? There is nothing labeled on the chip or any info in the documentation.
I want to manually connect these TX/RX pins to the Arduino so I can setup SoftwareSerial to send AT commands.
Cheers!
This shield has the SIM800H chip which should have TX and RX pins. Can anyone advise where these TX and RX pins are exposed on this shield? There is nothing labeled on the chip or any info in the documentation.
I want to manually connect these TX/RX pins to the Arduino so I can setup SoftwareSerial to send AT commands.
Cheers!
2016-08-22 19:54:25 Hi damianveling，
The TX and RX pin is the digital port 0 and 1, you can find two labels near the digital port 0 and 1. You only need to insert the module onto the Arduino. More detailed info about how to enter into AT mode you can refer to the following link:
https://www.dfrobot.com/wiki/index.php?t ... T_mode_.3F Wendy.Hu
The TX and RX pin is the digital port 0 and 1, you can find two labels near the digital port 0 and 1. You only need to insert the module onto the Arduino. More detailed info about how to enter into AT mode you can refer to the following link:
https://www.dfrobot.com/wiki/index.php?t ... T_mode_.3F
Wendy.Hu 