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92 lines
2.3 KiB
92 lines
2.3 KiB
2 years ago
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#include <SPI.h>
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#include <Wire.h>
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#include <Adafruit_GFX.h>
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#include <Adafruit_SSD1306.h>
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// OLED FeatherWing buttons map to different pins depending on board.
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// The I2C (Wire) bus may also be different.
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#if defined(ESP8266)
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#define BUTTON_A 0
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#define BUTTON_B 16
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#define BUTTON_C 2
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#define WIRE Wire
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#elif defined(ESP32)
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#define BUTTON_A 15
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#define BUTTON_B 32
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#define BUTTON_C 14
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#define WIRE Wire
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#elif defined(ARDUINO_STM32_FEATHER)
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#define BUTTON_A PA15
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#define BUTTON_B PC7
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#define BUTTON_C PC5
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#define WIRE Wire
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#elif defined(TEENSYDUINO)
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#define BUTTON_A 4
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#define BUTTON_B 3
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#define BUTTON_C 8
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#define WIRE Wire
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#elif defined(ARDUINO_FEATHER52832)
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#define BUTTON_A 31
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#define BUTTON_B 30
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#define BUTTON_C 27
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#define WIRE Wire
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#elif defined(ARDUINO_ADAFRUIT_FEATHER_RP2040)
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#define BUTTON_A 9
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#define BUTTON_B 8
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#define BUTTON_C 7
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#define WIRE Wire1
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#else // 32u4, M0, M4, nrf52840 and 328p
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#define BUTTON_A 9
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#define BUTTON_B 6
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#define BUTTON_C 5
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#define WIRE Wire
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#endif
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Adafruit_SSD1306 display = Adafruit_SSD1306(128, 32, &WIRE);
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void setup() {
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Serial.begin(9600);
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Serial.println("OLED FeatherWing test");
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// SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
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display.begin(SSD1306_SWITCHCAPVCC, 0x3C); // Address 0x3C for 128x32
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Serial.println("OLED begun");
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// Show image buffer on the display hardware.
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// Since the buffer is intialized with an Adafruit splashscreen
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// internally, this will display the splashscreen.
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display.display();
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delay(1000);
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// Clear the buffer.
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display.clearDisplay();
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display.display();
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Serial.println("IO test");
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pinMode(BUTTON_A, INPUT_PULLUP);
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pinMode(BUTTON_B, INPUT_PULLUP);
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pinMode(BUTTON_C, INPUT_PULLUP);
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// text display tests
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display.setTextSize(1);
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display.setTextColor(SSD1306_WHITE);
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display.setCursor(0,0);
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display.print("Connecting to SSID\n'adafruit':");
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display.print("connected!");
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display.println("IP: 10.0.1.23");
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display.println("Sending val #0");
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display.setCursor(0,0);
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display.display(); // actually display all of the above
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}
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void loop() {
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if(!digitalRead(BUTTON_A)) display.print("A");
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if(!digitalRead(BUTTON_B)) display.print("B");
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if(!digitalRead(BUTTON_C)) display.print("C");
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delay(10);
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yield();
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display.display();
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}
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