IIC/I2C/TWI/SPI 5V Serial Interface Board Module for Arduino 1602LCD Display

Description

Arduino control board IO port is only 20, plus some sensor, SD card Han, relay modules and more, IO port is not enough, The original 1602/2004 screen requires 7 IO port can drive up, we have developed this module can help you save five IO ports, we send arduino library

Product parameters:

1. Dimensions: 41.5mm (length) * 19mm (W) * 15.3mm (height)
2. Weight: 5g
3. PCB Color: Black
4. Supply Voltage :2.5-6V
5. Supports the I2C protocol
6. With backlight power control, can be connected via jumper settings are backlight power. Plug the jumper to connect the backlight off, unplug the jumper to disconnect the backlight power
7. Contrast can be adjusted by turning the blue potentiometer clockwise increase, counterclockwise weakened. Potentiometer design on the front, enabling customers to freely adjust anytime
8. Modules can be cascaded to cascade up to eight. By short-circuiting A0/A1/A2 modify the device address. The default address is 0x27.

Links

• https://arduino-info.wikispaces.com/LCD-Blue-I2C#v3
• http://www.netzmafia.de/skripten/hardware/RasPi/Projekt-LCD/
• http://tutorials-raspberrypi.de/hd44780-lcd-display-per-i2c-mit-dem-raspberry-pi-ansteuern/

Ändern der Adresse (Übersetzung von "www.instructables.com/id/1602-2004-LCD-Adapter-Addressing/" von PiotrS)

Dies ist eine einfache Anleitung wie die i2C Adresse des 1602 2004 LCD Adapters geändert wird. Nach einem frustrierendem Versuch, die Adresstabelle im Netz zu finden habe ich mich entschieden sie zu erstellen.

Schritt 1: Die Adressschalter finden

Wenn Ihr Adapter irgendwie so aussieht wie meiner, sollten die 3 Schalter genau wie in obigem Bild sein. Wenn sie Sie gefunden haben betrachten Sie sie genau. Fabrikeinstellung (in meinem Fall) war, dass keiner von Ihren verbunden war, was bedeutet das die Adresse des Gerätes 0x27 ist.

Step 2: Changing the address

To chang the address, all You nead to do is make a solder connections on the jumpers, in one of 8 combinations, above you have my address table. Now once you know how to change the address take your arduino plug the 4 cables to your LCD and be creative :)

Step 3: Plug everything together

the picture should help you achieving thisgoal

Step 4: A simple coding to check if it works + Librarys

LCD_I2C_2004.ino

i2c_lcd.ino

LiquidCrystal_I2C.zip

Quelle: