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Update TFTEtchASketch.ino #34

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Update TFTEtchASketch.ino #34

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62f58d4
Update TFTEtchASketch.ino
Diviector Jan 6, 2022
e1ca339
Update examples/Arduino/TFTEtchASketch/TFTEtchASketch.ino
Diviector Jan 13, 2022
4386d34
Update examples/Arduino/TFTEtchASketch/TFTEtchASketch.ino
Diviector Jan 13, 2022
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7 changes: 4 additions & 3 deletions examples/Arduino/TFTEtchASketch/TFTEtchASketch.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,7 @@ int erasePin = 2;
void setup() {
// declare inputs
pinMode(erasePin, INPUT);
digitalWrite(erasePin, HIGH);
// initialize the screen
TFTscreen.begin();
// make the background black
Expand All @@ -51,8 +52,8 @@ void loop() {
int yValue = analogRead(A1);

// map the values and update the position
xPos = xPos + (map(xValue, 0, 1023, 2, -2));
yPos = yPos + (map(yValue, 0, 1023, -2, 2));
xPos = xPos + (map(xValue, 0, 1023, 2, -3));
yPos = yPos + (map(yValue, 0, 1023, -2, 3));

// don't let the point go past the screen edges
if (xPos > 159) {
Expand All @@ -75,7 +76,7 @@ void loop() {
TFTscreen.point(xPos, yPos);

// read the value of the pin, and erase the screen if pressed
if (digitalRead(erasePin) == HIGH) {
if (digitalRead(erasePin) == LOW) {
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Suggested change
if (digitalRead(erasePin) == LOW) {

See explanation above.

TFTscreen.background(0, 0, 0);
}

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