using multiple I2C displays -- different types

[pisicaverde]

There may be an issue when using an ESP8266 + a SH1106 OLED + an alphanumeric LCD display with i2c adapter, on same pins, but with different adresses. The behavior is somehow similar with issue138 -- both of them are updating only if there is a display.init() and lcd.begin() before any command.

Switching to brzo_i2c has disabled any updates to liquidCrystalDisplay.

#include "SH1106.h"
SH1106Wire display(0x3c, D1, D2);

#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 20, 4);

void setup() {
  display.init(); display.clear(); display.drawString(0, 0, "OLED ready"); display.display();
  lcd.begin(D1, D2); lcd.backlight(); lcd.setCursor(0, 1); lcd.print("LCD ready");
}

void loop() {
  display.init();
  display.clear(); display.drawString(0, 0, "Hello: " + String(millis())); display.display();

  lcd.begin(); 
  lcd.setCursor(0,1) ; lcd.print("Hello: " + String(millis())); 

  delay(100);
}

But calling display.init() & lcd.begin() flickers the screen and worse, it crashes the ESP8266.

Any ideas/workarounds are greatly welcomed.

[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.

[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.