Finish sms send with hex 1A
Set Passcode in declared variables as desired code in String format
Passcode blocks everything but answer and background tasks
Run the ts_calibration.ino first
Check for SIM pin code lock, AT+CLCK="SC",2, if return 0 off if return 1 on (must be 0)

Read the RA8875 header file for my added functions
Availbe colors are black,blue,red,green,cyan,magenta,yellow,white
TFT functions use the values x,y,w,h with x and y starting points at top left
TFT usable pixels Max X value is 479  Max Y value is 271
Pixel definition is (Y bottom line start, X left starting line, Y top line start, X right ending lines)

draw number pad background for testing
tft.fillRect(100, 5, 379, 266, RA8875_BLACK); // x,y,w,h X and Y start at top left
tft.drawLine(100, 90, 479, 90, RA8875_WHITE);
tft.drawLine(100, 181, 479, 181, RA8875_WHITE);