 
 */
 #include "proto/device_id.h"
-#include <TFT.h>    // Arduino LCD library
+#include <TFT_ST7735.h> // Graphics and font library for ST7735 driver chip
 #include <SPI.h>    // SPI library
 #include <Keypad.h> // Keypad library
 #include <math.h>   // Math library


void displaySWR() {                                         // display SWR values
  dtostrf(valueSWR, 5, 2, DisplayValueSWR);
  TFTscreen.stroke(0, 255, 0);
  TFTscreen.setTextSize(2);
  TFTscreen.text(DisplayValueSWR, 40, 5);
}

void EraseDisplaySWR() {                                   // erase display SWR values
  TFTscreen.stroke(0, 20, 30);
  TFTscreen.setTextSize(2);
  TFTscreen.text(DisplayValueSWR, 40, 5);
}

double stepsToUH(double x) {

void displayC1steps() {                                       // display C1 steps values
  dtostrf(valueRotateC1, 5, 0, DisplayValueC1);
  if (isBusy) {
    tft.setTextColor(TFT_YELLOW);
  } else {
    tft.setTextColor(TFT_GREEN);
  }
  tft.setTextSize(1);
  tft.drawString(DisplayValueC1, 55, 72, 1);
}

void EraseDisplayC1steps() {                                   // erase display C1 steps values
  tft.setTextColor(TFT_BLACK);
  tft.setTextSize(1);
  tft.drawString(DisplayValueC1, 55, 72, 1);
}

void displayValueC1pF() {                                         // display C1 values in pF
  dtostrf(stepsC1topF(valueRotateC1), 4, 1, DisplayValueC1pF);
  if (isBusy) {
    tft.setTextColor(TFT_YELLOW);
  } else {
    tft.setTextColor(TFT_GREEN);
  }
  tft.setTextSize(2);
  tft.drawString(DisplayValueC1pF, 40, 55, 1);
}

void ErasDisplayValueC1pF() {                                   // erase display C1 values in pF
  tft.setTextColor(TFT_BLACK);
  tft.setTextSize(2);
  tft.drawString(DisplayValueC1pF, 40, 55, 1);
}

void displayC1() {                                             // display C1 values
