Hello everyone! I am using the SIM800L module to send SMS through a TivaC TM4C123GXL board, but its clock is 80MHz, and the library only accepts 20, 16 or 8 MHz. In Arduino it worked perfectly, this code found on a website. How do I reduce the TM4C123 clock in Power software? Is there another solution? Thanks in advance!
The code:
#include <SoftwareSerial.h>
SoftwareSerial sim(3, 4);
int _timeout;
String _buffer;
String number = ""; //here I inserted my number phone
void setup() {
delay(4000); //delay for 7 seconds to make sure the modules get the signal
Serial.begin(960