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ThingPulse / esp8266-oled-ssd1306

Driver for the SSD1306 and SH1106 based 128x64, 128x32, 64x48 pixel OLED display running on ESP8266/ESP32
https://thingpulse.com
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WebKit8 OLED display not working #148

Closed palsbo closed 5 years ago

palsbo commented 7 years ago

I have an ESP8266 with buildin OLED (https://www.aliexpress.com/item/ESP8266-WIFI-Chip-0-91-inch-OLED-CP2014-32Mb-Flash-ESP-8266-Module-Internet-of-things/32822165059.html)

It useses SDA=pin 2 and SCL=pin 14, and it works with Adafruuit_SSD1306 library but only when I define by using Adafruit_SSD1306 display(OLED_RESET);

where OLED_RESET = 4

"Normal OLED modules" require OLED = 0; I gues this is the reason it is not working with your library.

Any ideas on how to get it to work?

zdar commented 7 years ago

You have to use correct pins for constructor (supplied documentation is not correct):

SSD1306xxx display(0x3c, 4, 5);

and You have to reset display manually before library init

// reset display pinMode(16, OUTPUT); digitalWrite(16, LOW); delay(50); digitalWrite(16, HIGH);

spblinux commented 5 years ago

@squix78: Would you mind to put the hint of zdar to the readme page of your library?

It took me quite a while of reading to find this information and I can confirm that displays like TTGO ESP8266 0.91 inch OLED for arduino for nodemcu require this reset command; SDA=D4, SCL=D5, RST=D2 with 10ms delay in my case. (Luxury version would be to add it to the constructor.) - Used for JLInfoTicker which is based on ThingPulse ESP8266 OLED SSD1306.

stale[bot] commented 5 years ago

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.