WROVER (v3) LCD not working with i2c

Reefhermit
Posts: 6
Joined: Mon Jan 23, 2017 4:33 pm

WROVER (v3) LCD not working with i2c

Postby Reefhermit » Wed Dec 13, 2017 5:25 pm

I cannot seem to write to the LCD display and read values from three devices on the I 2C bus at the same time. Individually the devices work fine and values can be displayed on the serial terminal. Also, the graphics example program works fine. Combining the two does not work. I can create an instance of the wrover_kit_lcd (wrover_kit_lcd display) but if I initialize as in [display.begin()] the values returned by the devices on the i2c are garbled.

Any help on this issue would be greatly appreciated.

Thanks in advance,

Ken

Reefhermit
Posts: 6
Joined: Mon Jan 23, 2017 4:33 pm

Re: WROVER (v3) LCD not working with i2c

Postby Reefhermit » Sat Dec 16, 2017 2:44 pm

Just as a follow up, I figured out what the problem is. The LCD is using Pin 21 and Pin 22 for the LCD.

I have tried everything my expertise in programming, which is limited, allows to change the SDA and SCL to different pins but have had no luck.

Any help on this front would be appreciated.

Thanks,

Ken

-Rudy-
Posts: 11
Joined: Sun Feb 05, 2017 1:08 am

Re: WROVER (v3) LCD not working with i2c

Postby -Rudy- » Fri Dec 29, 2017 4:36 pm

I don't know if you found a solution yet, but I have had to modify a device's library files when I had the same problem.

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