Arduino Robot and TFT Display

by Visual Micro 22. May 2013 19:22

I just read the article below about the new arduino tft that shows the code to draw a sensor value on the screen instead of serial debug :)

It is a nice little Arduino shield

I recon the visual micro debugger could have an option to print some breakpoint data to the screen for the users. It would be a hell of a  lot easier :)

Maybe a debugger visualization can be created in c# to replicate the shield? Any offers anyone? 

#include <TFT.h>  // Arduino LCD library
#include <SPI.h>

// pin definition for the Uno
#define cs   10
#define dc   9
#define rst  8  

// pin definition for the Leonardo
// #define cs   7
// #define dc   0
// #define rst  1 

// create an instance of the library
TFT TFTscreen = TFT(cs, dc, rst);

// char array to print to the screen
char sensorPrintout[4];

void setup() {
  // Put this line at the beginning of every sketch that uses the GLCD:

  // clear the screen with a black background
  TFTscreen.background(0, 0, 0);
  // write the static text to the screen
  // set the font color to white
  // set the font size
  // write the text to the top left corner of the screen
  TFTscreen.text("Sensor Value :\n ",0,0);
  // ste the font size very large for the loop

void loop() {

  // Read the value of the sensor on A0
  String sensorVal = String(analogRead(A0));
  // convert the reading to a char array
  sensorVal.toCharArray(sensorPrintout, 4);

  // set the font color
  // print the sensor value
  TFTscreen.text(sensorPrintout, 0, 20);
  // wait for a moment
  // erase the text you just wrote
  TFTscreen.text(sensorPrintout, 0, 20);

Share The Arduino Serial Port With The Debugger

by Visual Micro 5. May 2012 17:16

The example below shows a single Arduino Serial Port being used for both debug and static serial messages.

The example goes one step further by making use of the DEBUG symbol allowing the static messages to only be included in the program when debuging is enabled for the project.


In the example above the code in the Serial.begin() in the setup() function is not required because both the debugger and the project are using the same port. However, if the defined(DEBUG) condition is removed from the code then Serial.begin() would be required. Therefore it is safer to add Serial.begin() if your sketch code directly uses the Serial port.

The same would apply if the debug "Remote Port" on the project properties was set to a port other than "Serial". In this case you would certainly need to initialise the Serial port.