Hello !
Trace: • STM_IoT_1: Reading MAC address of the WiFi • STM_4: 1-Wire Temperature Sensor • Force sensor • STM_8: Controlling Smart LED stripe • Other Sensors • Kahejuhtme liides TWI/I2C • Sensors and Sensing • STM_IoT_3: Connecting to the MQTT broker and publishing data • RealTerm: Serial/TCP Terminal • Taimerid

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en:iot-open:practical:hardware:sut:stm32:emb5_1 [2024/04/10 20:02] – ktokarzen:iot-open:practical:hardware:sut:stm32:emb5_1 [2024/04/10 20:20] (current) – [Steps] ktokarz
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 You are going to use a library to handle the LCD. It means you need to add it to your ''platformio.ini'' file. Use the template provided in the hardware reference section and extend it with the library definition: You are going to use a library to handle the LCD. It means you need to add it to your ''platformio.ini'' file. Use the template provided in the hardware reference section and extend it with the library definition:
 <code bash> <code bash>
-lib_deps = adafruit/Adafruit LiquidCrystal@^2.0.2+lib_deps = arduino-libraries/LiquidCrystal@^1.0.7
 </code> </code>
  
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 Declare GPIOs controlling the LCD, according to the hardware reference: Declare GPIOs controlling the LCD, according to the hardware reference:
 <code c> <code c>
-#define LCD_RS 2 +const int rs = PC5, en = PB11, d4 = PB12, d5 = PB13, d6 = PB14, d7 = PB15;
-#define LCD_ENABLE 1 +
-#define LCD_D4 39 +
-#define LCD_D5 40 +
-#define LCD_D6 41 +
-#define LCD_D7 42+
 </code> </code>
  
 === Step 3 === === Step 3 ===
-Declare a static instance of the LCD controller class and preconfigure it with appropriate control GPIOs:+Declare an instance of the LCD controller class and preconfigure it with appropriate control GPIOs:
 <code c> <code c>
-static Adafruit_LiquidCrystal lcd(LCD_RS, LCD_ENABLE, LCD_D4, LCD_D5, LCD_D6, LCD_D7);+LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
 </code> </code>
  
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 Initialise class with display area configuration (number of columns, here 16 and rows, here 2): Initialise class with display area configuration (number of columns, here 16 and rows, here 2):
 <code c> <code c>
-lcd.begin(16,2); +lcd.begin(16, 2);
 </code> </code>
  
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   * ''.setCursor(x,y)'' - set cursor, writing will start there;   * ''.setCursor(x,y)'' - set cursor, writing will start there;
   * ''.print(contents)'' - prints text in the cursor location; note there are many overloaded functions, accepting various arguments, including numerical.   * ''.print(contents)'' - prints text in the cursor location; note there are many overloaded functions, accepting various arguments, including numerical.
 +
 +A simple example can be the Hello World:
 +<code c>
 +lcd.print("hello, world!");
 +</code>
  
 ==== Result validation ==== ==== Result validation ====
en/iot-open/practical/hardware/sut/stm32/emb5_1.1712779356.txt.gz · Last modified: 2024/04/10 20:02 by ktokarz
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