I tell you, I adapted an old code for a work of the university an oled screen, copy the example code to make the screen work, and it works but the adafruit logo appears, but I don't see it anywhere, any idea?
#define rfReceivePin A0 //RF Receiver data pin = Analog pin 1
#define rfTransmitPin 2 //RF Transmitter pin = digital pin 1
#define button 4 //The button attached to digital pin 3
#define ledPin 13 //Onboard LED = digital pin 4
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels
#define OLED_RESET -1 // Reset pin # (or -1 if sharing Arduino reset pin)
#define SCREEN_ADDRESS 0x3C ///< See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
const int dataSize = 500; //Arduino memory is limited (max=1700)
byte storedData[dataSize]; //Create an array to store the data
const unsigned int threshold = 100; //signal threshold value
int maxSignalLength = 255; //Set the maximum length of the signal
int dataCounter = 0; //Variable to measure the length of the signal
int buttonState = 1; //Variable to control the flow of code using button presses
int buttonVal = 0; //Variable to hold the state of the button
int timeDelay = 105; //Used to slow down the signal transmission (can be from 75 - 135)
void setup() {
Serial.begin(9600);
if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
Serial.println(F("SSD1306 allocation failed"));
}
display.display();
delay(2000); // Pause for 2 seconds
pinMode(rfTransmitPin, OUTPUT);
pinMode(ledPin, OUTPUT);
pinMode(button, INPUT);
}
void loop() {
digitalWrite(button, HIGH);
buttonVal = digitalRead(button);
if (buttonState > 0 && buttonVal == LOW) {
display.clearDisplay();
display.setTextSize(1);
display.setTextColor(WHITE);
display.setCursor(0, 0);
display.println("Capturando señal...");
display.display();
initVariables();
listenForSignal();
}else{
display.clearDisplay();
display.setTextSize(1);
display.setTextColor(WHITE);
display.setCursor(0, 0);
display.println("esperando boton...");
display.display();
}
digitalWrite(button, HIGH);
buttonVal = digitalRead(button);
if (buttonState < 1 && buttonVal == LOW) {
display.clearDisplay();
display.setTextSize(1);
display.setTextColor(WHITE);
display.setCursor(0, 0);
display.println("Señal enviada!");
display.display();
sendSignal();
}else{
display.clearDisplay();
display.setTextSize(1);
display.setTextColor(WHITE);
display.setCursor(0, 0);
display.println("esperando boton...");
display.display();
}
delay(20);
}
void initVariables() {
for (int i = 0; i < dataSize; i++) {
storedData[i] = 0;
}
buttonState = 0;
}
void listenForSignal() {
digitalWrite(ledPin, HIGH);
delay(1000);
digitalWrite(ledPin, LOW);
while (analogRead(rfReceivePin) < threshold) {
//Wait here until an RF signal is received
}
digitalWrite(ledPin, HIGH);
//Read and store the rest of the signal into the storedData array
for (int i = 0; i < dataSize; i = i + 2) {
//Identify the length of the HIGH signal---------------HIGH
dataCounter = 0; //reset the counter
while (analogRead(rfReceivePin) > threshold && dataCounter < maxSignalLength) {
dataCounter++;
}
storedData[i] = dataCounter; //Store the length of the HIGH signal
//Identify the length of the LOW signal---------------LOW
dataCounter = 0; //reset the counter
while (analogRead(rfReceivePin) < threshold && dataCounter < maxSignalLength) {
dataCounter++;
}
storedData[i + 1] = dataCounter; //Store the length of the LOW signal
}
storedData[0]++; //Account for the first AnalogRead>threshold = lost while listening for signal
digitalWrite(ledPin, LOW);
}
void sendSignal() {
digitalWrite(ledPin, HIGH);
for (int i = 0; i < dataSize; i = i + 2) {
//Send HIGH signal
digitalWrite(rfTransmitPin, HIGH);
delayMicroseconds(storedData[i]*timeDelay);
//Send LOW signal
digitalWrite(rfTransmitPin, LOW);
delayMicroseconds(storedData[i + 1]*timeDelay);
}
digitalWrite(ledPin, LOW);
delay(1000);
}
the logo appears as if it were that, a startup logo, like when you turn on your cell phone the logo appears, but I don't want it to appear, I want to place one of my own