Linear scale thermometer
Arduino thermometer with LED scale, mechanical servo motor scale or mechanical scale with stepper motor drive. Range: from
-50°C (-60°F) to 50°C (120°F). If LEDs used, negative temperature can be shown on blue LEDs and positive on
red LEDs. Advanced variant - big model of thermometer (up to 10 m long).
Temperature can be read with DS18B20 sensor, and there can be light sensor (for model lighting while dusk). If there is winch
used in model, it's positon should have manual or automatic calibration and position sensor.