- #ARDUINO LCD LIBRARY PROBLEMS INSTALL#
- #ARDUINO LCD LIBRARY PROBLEMS SERIAL#
- #ARDUINO LCD LIBRARY PROBLEMS CODE#
#ARDUINO LCD LIBRARY PROBLEMS CODE#
then you see your button values and fixed in code /* Created by Ark Bramwell, July 2010 Modified by keen Date: Function: this program will test the LCD panel and the buttons */ //Sample using LiquidCrystal library #include #include // select the pins used on the LCD panel LiquidCrystal lcd(8, 9, 4, 5, 6, 7) // define some values used by the panel and buttons int lcd_key = 0 int adc_key_in = 0 #define btnRIGHT 0 #define btnUP 1 #define btnDOWN 2 #define btnLEFT 3 #define btnSELECT 4 #define btnNONE 5 // read the buttons int read_LCD_buttons()
#ARDUINO LCD LIBRARY PROBLEMS SERIAL#
zip file (previously downloaded).Thats cool, but you just adjust your button values using serial viewer. Go to Arduino IDE -> Sketch -> Include Library -> Add. The previous two libraries can also be installed manually:ĭownload both libraries from the following two links:Īdafruit Nokia 5110 LCD library -> direct linkĪdafruit graphics library -> direct link The second library is Adafruit graphics library which can be installed also from Arduino IDE library manager.
#ARDUINO LCD LIBRARY PROBLEMS INSTALL#
The first library is a driver for the Nokia 5110 LCD (PCD8544 controller) which can be installed from Arduino IDE library manager (Sketch -> Include Library -> Manage Libraries …, in the search box write “nokia” and install the one from Adafruit). The following Arduino code requires two libraries from Adafruit Industries: Interfacing Arduino with Nokia 5110 LCD code: Each voltage divider consists of 2.2k and 3.3k resistors, this drops the 5V into 3V which is sufficient. To connect the Arduino to the LCD module, I used voltage divider for each line which means there are 5 voltage dividers. The LCD module is supplied with 3.3V which comes from the Arduino board (VCC pin of the LCD is connected to Arduino 3.3V pin), BL pin is also connected to 3.3V.Īll Arduino UNO board output pins are 5V, connecting a 5V pin to the Nokia 5110 LCD may damage its controller circuit. The Nokia 5110 which is shown in the circuit diagram has 8 pins (from left to right): RST (reset), CE (chip enable), DC (or D/C: data/command), Din (data in), Clk (clock), VCC (3.3V), BL (back light) and Gnd (ground).Īs mentioned above, the Nokia 5110 LCD works with 3.3V only (power supply and control lines).