1602 LCD on RPi B+

From EnigmaGuy Wiki
Jump to navigation Jump to search

What will be needed?

  • SaintSmart 1602 backlighted I2C LCD (search E-Bay for "1602 LCD I2C")

1602 LCD I2C

  • MB102 BreadBoard (also available on E-Bay)
  • Raspberry PI GPIO Extension Board v2.2

GPIO board

  • Bi-Directional Module 5V to 3.3V

3.3 to 5V converter

  • Male to Female Dupont wires
  • 140pcs Solderless Breadboard Jumper Cable Wire Kit

Jumper cable kit

Final connection

Final Connection

Software

  • Login to Raspberry Pi B+
  • sudo vi /etc/modules and add following
i2c-dev
  • sudo vi /etc/modprobe.d/raspi-blacklist.conf and comment following
# blacklist spi and i2c by default (many users don't need them)

#blacklist spi-bcm2708
#blacklist i2c-bcm2708
  • Run following commands and reboot
sudo adduser pi i2c
reboot
  • Connect LCD and run "i2cdetect -y 1" to find where is the device connected
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: -- -- -- -- -- -- -- 27 -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- -- -- UU -- -- -- -- 
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: -- -- -- -- -- -- -- --
Retrieved from "https://wiki.enigma14.eu/index.php?title=1602_LCD_on_RPi_B%2B&oldid=119"