Touch not working on WaveShare RP2350-Touch-LCD-3.5-C module


Author Message
Canada_Cold
Regular Member

Joined: 11/01/2020
Location: Canada
Posts: 56
Posted: 02:39pm 28 Apr 2026      

Hi Guys,

I just wanted to say thank you to Mick and Lyle for your help.  

Based on your suggestions I did a lot of testing and found I had made a very stupid mistake.   I had the parameters on the touch command reversed.    I did a total reset on the unit, reentered the updated commands and now the touch is working great.

Lyle, I hadn’t seen the “LIST SYSTEM I2C” command before and it was very helpful.    I’m going to try getting the RTC working next.  It’s a PCF85063 rather than a PCF8563 that is listed in the User Manual.  I’ll post something if I get it working.

Again, thanks for your help.

Don