I2C LED 16x2 support
Started by cris bar




4 posts in this topic
cris bar

13 posts 4 threads Joined: Aug 2021
16-08-21, 19:56 -
#1
Helloo!

Trying hard to make work samplerbox on RPI3b+, Hifiberry DAC and LCD 16x2 1602A, chip PCF8574T

I can make it sound thru my controller! Nice... But, I can see nothing on the display, just full lighted blue color when is ON, no characters.
I have change configuration.txt to 

USE_I2C_LCD = TRUE
I2C_LCD_ADDR=0x27     
I2C_LCD_PORT=1 ---> not sure about this number...


Also changed in file modules/I2C_lCD.py the adress to 0x27 (it was 0x3f)

The wiring from I2C to RPI is:

GPIO2 = Data
GPIO3 = Clock
PIN 4 = VCC
PIN 6 = GND


I even tried without the DAC and the same PINS above with no results.

AM I MISSING SOMETHING??

IM USING Linux Samplerbox 4.14.30-v7+

PLease help because is very frustrating!!
THANK YOU!


Messages In This Thread
I2C LED 16x2 support - by cris bar - 16-08-21, 19:56
RE: I2C LED 16x2 support - by hansehv - 17-08-21, 00:11
RE: I2C LED 16x2 support - by hansehv - 17-08-21, 11:59
RE: I2C LED 16x2 support - by cris bar - 17-08-21, 13:21
RE: I2C LED 16x2 support - by hansehv - 17-08-21, 23:12