try:
input = raw_input
except NameError:
pass
try:
unichr = unichr
except NameError:
unichr = chr
lcd = CharLCD(cols=16, rows=2)
# if you have a backlight circuit, initialize like this (substituting the
# appropriate GPIO and BacklightMode for your backlight circuit):
#lcd = CharLCD(cols=16, rows=2, pin_backlight=7, backlight_mode=BacklightMode.active_high)
lcd.backlight = True
input('Display should be blank. ')
lcd.cursor_mode = CursorMode.blink
input('The cursor should now blink. ')
lcd.cursor_mode = CursorMode.line
input('The cursor should now be a line. ')
lcd.write_string('Hello world!')
input('"Hello world!" should be on the LCD. ')
assert lcd.cursor_pos == (0, 12), 'cursor_pos should now be (0, 12)'
lcd.cursor_pos = (0, 15)
lcd.write_string('1')
input = raw_input
except NameError:
pass
try:
unichr = unichr
except NameError:
unichr = chr
lcd = CharLCD(cols=16, rows=2)
# if you have a backlight circuit, initialize like this (substituting the
# appropriate GPIO and BacklightMode for your backlight circuit):
#lcd = CharLCD(cols=16, rows=2, pin_backlight=7, backlight_mode=BacklightMode.active_high)
lcd.backlight = True
input('Display should be blank. ')
lcd.cursor_mode = CursorMode.blink
input('The cursor should now blink. ')
lcd.cursor_mode = CursorMode.line
input('The cursor should now be a line. ')
lcd.write_string('Hello world!')
input('"Hello world!" should be on the LCD. ')
assert lcd.cursor_pos == (0, 12), 'cursor_pos should now be (0, 12)'
lcd.cursor_pos = (0, 15)
lcd.write_string('1')
def read_temp_f():
lines = read_temp_raw()
while lines[0].strip()[-3:] != 'YES':
time.sleep(0.2)
lines = read_temp_raw()
equals_pos = lines[1].find('t=')
if equals_pos != -1:
temp_string = lines[1][equals_pos+2:]
temp_f = (int(temp_string) / 1000.0) * 9.0 / 5.0 + 32.0 # TEMP_STRING IS THE SENSOR OUTPUT, MAKE SURE IT'S AN INTEGER TO DO THE MATH
temp_f = str(round(temp_f, 1)) # ROUND THE RESULT TO 1 PLACE AFTER THE DECIMAL, THEN CONVERT IT TO A STRING
return temp_f
void setup(void)
{
lcd.init(); // initialize the lcd
lcd.backlight();
Serial.begin(9600)
sensors.begin(); // turn on sensors for DS18b20
pinMode(buttonUp, INPUT); // Set INCREASE button to input
pinMode(buttonDown, INPUT); // Set DECREASE button to input
lcd.setCursor(0,0); // Set LCD cursor to first cursor spot
lcd.print("Temperature"); // Print "Temperature" to cursor spot on LCD
}
void loop(void)
{
sensors.requestTemperatures(); // Get temperature readings
lcd.setCursor(2,1);
lcd.print(sensors.getTempFByIndex(0)); // Print actual temperature
