Attempting to make gps unit with screen. GPS unit communicates over serial (Adafruit Ultimate GPS Breakout) and I can get GPS data through USB to my pc with Adafruit GPS library softwareserial examples. The screen communicates over I2C (Sunfounder OLED-SSD1306 Module) and I can get display with Adafruit SSD1306 examples. However I cannot get both to happen simultaneously. Board is Adafruit Metro Mini 5v 16MHZ. GPS is using pin 8 for TX and pin 9 for RX. Display is using A4 for SDA and A5 for SCL.
If "Adafruit_GPS GPS(&mySerial);" is not commented the screen will not display anything. If it is commented the screen displays just fine. How do I get both to function simultaneously?
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define OLED_RESET -1
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
#include <Adafruit_GPS.h>
#include <SoftwareSerial.h>
SoftwareSerial mySerial(8, 9);
Adafruit_GPS GPS(&mySerial);
void setup() {
if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
for(;;);
}
display.display();
delay(2000);
display.clearDisplay();
display.drawPixel(10, 10, SSD1306_WHITE);
display.display();
delay(2000);
testdrawchar();
}
void loop() {
}
void testdrawchar(void) {
display.clearDisplay();
display.setTextSize(1);
display.setTextColor(SSD1306_WHITE);
display.setCursor(0, 0);
display.cp437(true);
for(int16_t i=0; i<256; i++) {
if(i == '\n') display.write(' ');
else display.write(i);
}
display.display();
delay(2000);
}
