Wroom02 and OLED-091 - I2C-Init to early ?

Moderators: Voyager, BertB, rtenklooster, Stuntteam, grovkillen, TD-er

Post Reply
Message
Author
Micha_he
Normal user
Posts: 51
Joined: 07 Feb 2018, 19:14

Wroom02 and OLED-091 - I2C-Init to early ?

#1 Post by Micha_he » 09 Feb 2019, 15:23

I've this test-build:

- Wroom-02
- OLED-091 (DIY MORE, SSD 1306, 4pin) connected with I2C ( Default IO4/IO5)
- same 3.3V power-supply with the ESP
- Firmware 20190202 2MB

The display works, if I:
- fresh setup the display
- change the display-settings and submit it
- reboot the ESP via web-interface
- power on the ESP, while the display is supplied with the 3,3V

But the display shows nothing when I switch on the power-supply (from ESP & display), until I do some of the 4 points above !

Maybe the I2C-Init is to early (for this/my slow display) ??? Can I re-init the I2C-Bus with a rule ?
Or can we add a I2C-Init-Delay-Value (in sec) to the ESPEasy-web-inferface ?

Thanks,
Micha

Micha_he
Normal user
Posts: 51
Joined: 07 Feb 2018, 19:14

Re: Wroom02 and OLED-091 - I2C-Init to early ?

#2 Post by Micha_he » 19 Feb 2019, 16:01

No one with a similar problem?

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest