B4R Question rAdafruitSSD1306 lib (does NOT work) vs. Inline C (works)

KMatle · Aug 21, 2019

I have an ESP32 with an onboard OLED Display. @Peter Simpson wrote a nice example which works like a charm. Peter showed some connection parms but it doesn't work with the lib. The I2cScanner shows no devices.

Could someone explain the problem? Is it a bug in the lib?

Peter Simpson said:
Of course I've seen that library @Erel
I've previously posted code snippets on here using your SSD1306 library. For starters it's missing some methods like 'display.drawProgressBar', and in any case it does not connected to this particular ESP32 with built in OLED display.

Look at the difference yourself.

B4X:

Initialising using C: SSD1306 display(0x3c, 5, 4); 'Built-in OLED display

B4X:

Initialising using B4R: SSD.InitializeHSPI(9, 8, 10) '7 pin OLED display or SSD.InitializeI2C(4, 0x3c) '4 pin OLED display

https://www.b4x.com/android/forum/threads/radafruitssd1306-oled-displays.68906/#content

https://www.b4x.com/android/forum/t...-in-oled-display-progress-bar-inline-c.81391/

Erel · Aug 22, 2019

These are two completely different libraries.

The B4R library is based on: https://github.com/adafruit/Adafruit_SSD1306

B4R Question rAdafruitSSD1306 lib (does NOT work) vs. Inline C (works)

KMatle

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Erel

B4X founder

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B4R Question rAdafruitSSD1306 lib (does NOT work) vs. Inline C (works)

KMatle

Expert

Erel

B4X founder

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