GEOMETRY_64_48 and drawStringf method added

[thorsten-l]

I did only to few little changes to get my 64x48 Shield working and i really needed the possibility to do a 'printf' like formatted output. So i implemented a drawStringf method.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[Testato]

This PR solve the Issue #73
Please accept it

[marcelstoer]

@thorsten-l sorry the PRs weren't processed in due time over the last year. Can I ask you to resolve the conflicts in src/OLEDDisplay.cpp? I had to merge a large PR from @helmut64 first, sorry.

[marcelstoer]

Can you please fix the formatting in this switch statement (indentation), thanks.

[LennartHennigs]

could you please approve this change request? it has been opened since 2018 and it basically works...

[marcelstoer]

I approved it a year ago and we would have merged it if all feedback had been addressed or if we had been given permission to edit the file in question ourselves.

[LennartHennigs]

Hey Marcel,
thanks for replying.
Isn't the only todo open: to fix the indenting of one code block?

Cheers
l.

[LennartHennigs]

please reopen this PR and accept the fix

[rin67630]

MiniOLED is perfectly working , but DrawStringf is only documented, does not compile...
Can we hope for a Christmas gift?

[thorsten-l]

#include <Arduino.h>
#include <SSD1306Brzo.h>

SSD1306Brzo display(0x3c, D2, D1, GEOMETRY_64_48 );

static char buffer[32];
static unsigned long counter;

void setup() {
  Serial.begin(115200);
  counter = 0l;
  display.init();
  display.flipScreenVertically();
}

void loop() {
  Serial.printf( "c=%lu\n", counter );
  display.clear();
  display.drawStringf( 10, 10, buffer, "c=%lu", counter );
                            // ^^^^^^ shared buffer to save memory
  display.display();
  delay( 1000 );
  counter++;
}

I just compiled and run this sample code successfully, with PlatformIO.

[thorsten-l]

[env:d1_mini]
platform = espressif8266
board = d1_mini
framework = arduino

lib_deps = 
  Brzo I2C@1.3.3
  https://github.com/ThingPulse/esp8266-oled-ssd1306

monitor_speed = 115200
upload_speed = 230400

with this platformio.ini file

[marcelstoer]

Thank you Thorsten 👍 🥇

[thorsten-l]

ESP-SSD1306-DrawStringf-Sample
A tiny bit more complex sample for drawStringf. Successfully tested with ESP8266 (D1 mini) and ESP32 (LOLIN32).
To give you a complete sample project.

[marcelstoer]

Way cool Thorsten! Thanks again for offering such excellent user support.