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G120 LCD Backpack


#1

Check out the 3.7" capacitive touch LCD “backpack” I just finished for the G120 HDR module.


#2

That looks pretty neat. I have board that uses the G120 and WiFi that connects direct to a 5" LCD in a similar manner. If you enable the RAM over clocking it is amazing how much faster the G120 whizzes along.

What is the resolution on your LCD?


#3

The lcd is the 3.5" Newhaven. Its 320 x 240 resolution.


#4

Ah, I didn’t see they had a 3.5" CAP touch display.

Do you have touch drivers working as Simon created a very nice one for these controllers.

https://www.ghielectronics.com/community/codeshare/entry/794

I’ve adapted this to work with the G400 software I2C too.

Even though Simon states that it shouldn’t really be used with a shared I2C bus it can as long as you use a semaphore to handle the I2C access. I have a bunch of I2C ADC’s being sampled every 10ms and touch works just fine.