I just bought Seeeduino GPRS
Which pin is used for communication with sim800?
Is that pin 7,8 SoftwareSerial and pin 9 power up/down ?
It says in wiki that
The SPI pins in this port: MISO, SCK, and MOSI, are also connected to digital pins 12, 13, and 11 respectively just like those of the Arduino Leonardo.
If you look at github sim800.h
#define SIM800_TX_PIN 8
#define SIM800_RX_PIN 7
#define SIM800_POWER_PIN 9
#define SIM800_POWER_STATUS 12
This I understand as pin 12 is used, will it then collide with spi on pins 11, 12 and 13 ?
Are there more pin which is used?