117 lines
2.1 KiB
C++
Executable File
117 lines
2.1 KiB
C++
Executable File
/*
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LiquidCrystal Library - Custom Characters The circuit:
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* LCD RS pin to digital pin 12
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* LCD Enable pin to digital pin 11
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* LCD D4 pin to digital pin 5
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* LCD D5 pin to digital pin 4
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* LCD D6 pin to digital pin 3
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* LCD D7 pin to digital pin 2
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* LCD R/W pin to ground
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* 10K potentiometer:
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* ends to +5V and ground
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* wiper to LCD VO pin (pin 3)
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* 10K poterntiometer on pin A0
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https://mikeyancey.com/hamcalc/lcd_characters.php
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*/
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// include the library code:
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#include <LiquidCrystal.h>
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// initialize the library with the numbers of the interface pins
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LiquidCrystal lcd(12, 11, 9, 8, 7, 6);
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// make some custom characters:
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byte heart[8] = {
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0b00000,
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0b01010,
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0b11111,
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0b11111,
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0b11111,
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0b01110,
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0b00100,
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0b00000
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};
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byte smiley[8] = {
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0b00000,
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0b00000,
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0b01010,
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0b00000,
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0b00000,
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0b10001,
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0b01110,
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0b00000
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};
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byte frownie[8] = {
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0b00000,
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0b00000,
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0b01010,
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0b00000,
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0b00000,
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0b00000,
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0b01110,
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0b10001
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};
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byte armsDown[8] = {
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0b00100,
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0b01010,
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0b00100,
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0b00100,
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0b01110,
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0b10101,
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0b00100,
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0b01010
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};
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byte armsUp[8] = {
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0b00100,
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0b01010,
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0b00100,
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0b10101,
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0b01110,
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0b00100,
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0b00100,
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0b01010
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};
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void setup() {
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// initialize LCD and set up the number of columns and rows:
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lcd.begin(16, 2);
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// create a new character
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lcd.createChar(0, heart);
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// create a new character
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lcd.createChar(1, smiley);
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// create a new character
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lcd.createChar(2, frownie);
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// create a new character
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lcd.createChar(3, armsDown);
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// create a new character
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lcd.createChar(4, armsUp);
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lcd.setCursor(0, 0);
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// Print a message to the lcd.
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lcd.print("I ");
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lcd.write(byte(0)); // when calling lcd.write() '0' must be cast as a byte
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lcd.print(" Arduino! ");
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lcd.write((byte) 1);
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}
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void loop() {
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// read the potentiometer on A0:
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int sensorReading = analogRead(A0);
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// map the result to 200 - 1000:
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int delayTime = map(sensorReading, 0, 1023, 200, 1000);
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// set the cursor to the bottom row, 5th position:
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lcd.setCursor(4, 1);
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// draw the little man, arms down:
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lcd.write(3);
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delay(delayTime);
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lcd.setCursor(4, 1);
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// draw him arms up:
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lcd.write(4);
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delay(delayTime);
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}
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