OLED & LCD Displays

# Add the libraries you need
import oled_display

# Give your pins easy-to-remember names
i1 = set_name("hello_btn")

# ===== Digital name badge =====

# This code block executes only once
setup:
    oled_begin()  # starts the OLED
    o7 = set_function(SDA)  # cannot be changed
    o8 = set_function(SCL)  # cannot be changed
    hello_btn = set_input(push_button, active_low)
    oled_write(1, center, large, bold, "ASHA")  # write "ASHA" on OLED line 1 (large bold, centred)
    oled_write(3, center, small, regular, "Class 7 B")  # write "Class 7 B" on OLED line 3 (small, centred)
    oled_write(4, center, small, regular, "TinkerPy coder")  # write "TinkerPy coder" on OLED line 4 (small, centred)

# This code block executes forever
loop:
    if hello_btn == ON:  # when hello_btn is ON
        oled_emoji_animation("smile", 2, 5, 0)  # a smiling emoji fills the screen
        wait(3000)  # pause here for 3000 milliseconds before continuing
        oled_clear()  # clear everything off the OLED
        oled_write(1, center, large, bold, "ASHA")  # write "ASHA" on OLED line 1 (large bold, centred)
        oled_write(3, center, small, regular, "Class 7 B")  # write "Class 7 B" on OLED line 3 (small, centred)
        oled_write(4, center, small, regular, "TinkerPy coder")  # write "TinkerPy coder" on OLED line 4 (small, centred)

A name badge: the name in large bold letters, then two small lines. Press the button for a smiling emoji, then the badge comes back. Change ASHA to your own name (7 letters fit in large).

# Add the libraries you need
import oled_display
import dht11

# Give your pins easy-to-remember names
i1 = set_name("weather")

# ===== Live temperature display =====

# This code block executes only once
setup:
    oled_begin()  # starts the OLED
    o7 = set_function(SDA)  # cannot be changed
    o8 = set_function(SCL)  # cannot be changed
    weather = set_input(dht11)
    oled_write(1, left, small, bold, "Room temperature")  # write "Room temperature" on OLED line 1 (small bold, from the left)
    warned = 0  # set warned to 0

# This code block executes forever
loop:
    t = dht_temperature(weather)  # read the temperature in °C
    oled_write(2, center, large, bold, t + " C")  # write the value of t + " C" on OLED line 2 (large bold, centred)
    if t >= 35 and warned == 0:  # when t >= 35 and warned == 0
        oled_scroll(4, "Too hot! Drink water")  # keep scrolling "Too hot! Drink water" along OLED line 4
        warned = 1  # set warned to 1
    if t < 35 and warned == 1:  # when t < 35 and warned == 1
        oled_clear_line(4)  # also stops the scrolling
        warned = 0  # set warned to 0
    wait(2000)  # pause here for 2000 milliseconds before continuing

A live thermometer with a DHT11 on i1. The temperature and C are joined into one large text. At 35 °C a warning scrolls along line 4 once; the flag warned stops it from restarting every loop.

# Add the libraries you need
import dht11
import lcd_16x2

# Give your pins easy-to-remember names
i1 = set_name("weather")
i2 = set_name("light_btn")

# ===== Room meter on the LCD =====

# This code block executes only once
setup:
    lcd_begin(0x27)  # the LCD’s I2C address (most: 0x27 or 0x3F; lcd_begin() finds it)
    weather = set_input(dht11)
    light_btn = set_input(push_button, active_low)
    o7 = set_function(SDA)  # cannot be changed
    o8 = set_function(SCL)  # cannot be changed
    lcd_scroll(1, "Welcome to the room meter")  # keep scrolling "Welcome to the room meter" along LCD line 1
    wait(6000)  # pause here for 6000 milliseconds before continuing
    lcd_clear()  # clear everything off the LCD

# This code block executes forever
loop:
    t = dht_temperature(weather)  # read the temperature in °C
    h = dht_humidity(weather)  # read the humidity in %
    lcd_clear_line(1)  # clear line 1 of the LCD
    lcd_write(1, 1, "Temp:")  # write "Temp:" on LCD line 1, from place 1
    lcd_write(1, 7, t)  # write the value of t on LCD line 1, from place 7
    lcd_write(1, 10, "C")  # write "C" on LCD line 1, from place 10
    lcd_clear_line(2)  # clear line 2 of the LCD
    lcd_write(2, 1, "Humidity:")  # write "Humidity:" on LCD line 2, from place 1
    lcd_write(2, 11, h)  # write the value of h on LCD line 2, from place 11
    lcd_write(2, 14, "%")  # write "%" on LCD line 2, from place 14
    if light_btn == ON:  # when light_btn is ON
        lcd_backlight(ON)  # switch the LCD backlight ON
    else:  # otherwise
        lcd_backlight(OFF)  # switch the LCD backlight OFF
    wait(2000)  # pause here for 2000 milliseconds before continuing

A room meter on the 16x2 LCD: a welcome message scrolls first, then each line shows a label, a number and its unit. Hold the button to light the backlight.

# Add the libraries you need
import oled_display

# Give your pins easy-to-remember names
i1 = set_name("hand")

# ===== Robot pet eyes =====

# This code block executes only once
setup:
    oled_begin()  # starts the OLED
    o7 = set_function(SDA)  # cannot be changed
    o8 = set_function(SCL)  # cannot be changed
    hand = set_input(ir_sensor, active_low)
    mood = 0  # set mood to 0

# This code block executes forever
loop:
    if hand == ON and mood != 1:  # when hand is ON and mood != 1
        oled_eye_animation("happy", 0, 6, 500)  # happy eyes, for ever
        mood = 1  # set mood to 1
    if hand == OFF and mood != 2:  # when hand is OFF and mood != 2
        oled_eye_animation("sleepy", 0, 3, 2000)  # sleepy eyes, for ever
        mood = 2  # set mood to 2

Robot pet eyes: happy when a hand is near the IR sensor, sleepy when it goes away. The mood variable makes each animation start only once, so it can play smoothly.