Easy Thermometer
This project is financially low-cost.
Everyone who knows the basics of electronics and programming can do it.
EXPANDED TECHNICAL DETAILS
Temperature Sensing
This thermometer typically uses the LM35 analog linear temperature sensor or the DS18B20 digital sensor.
- LM35 Processing: The Arduino reads the analog voltage (10mV per degree Celsius). The raw 10-bit ADC value (0-1023) is scaled to Celsius:
Temp = (Voltage * 100).
- DS18B20 Alternative: Uses the OneWire protocol for high-precision digital communication (up to 12-bit resolution), requiring only one digital pin for multiple sensors.
Display Integration
The system frequently interfaces with a 16x2 LCD (HD44780) or a small OLED (SSD1306).
- Data Refresh: To ensure stability and prevent flickering, the code implements a "sampling window" where multiple readings are averaged before updating the display every 500ms to 1s.
ข้อมูล Frontmatter ดั้งเดิม
title: "Easy Thermometer v1"
description: "An easy to build thermometer using Arduino, digital temperature sensor, and LCD display."
author: "hixel"
category: "Sensors & Environment"
tags:
- "environmental sensing"
views: 7661
likes: 3
price: 870
difficulty: "Easy"
components:
- "1x Resistor 4.75k ohm"
- "1x Resistor 221 ohm"
- "1x Jumper wires (generic)"
- "1x DS18B20 Programmable Resolution 1-Wire Digital Thermometer"
- "1x Arduino UNO"
- "1x Breadboard (generic)"
- "1x Standard LCD - 16x2 White on Blue"
tools: []
apps:
- "1x Arduino IDE"
downloadableFiles: []
documentationLinks: []
passwordHash: "ac1bbee912c7517c2afd5fbe7eadeed3e76ddf7141d2cc675ab0596825d9194f"
encryptedPayload: "U2FsdGVkX1/hrLQFwfIUyFgyclmJyxk/R333uF4ulAR3cm4hCS2f/eyH43/RoQ+aU+oaHu0ixiXm+H3jeBo2Gv5v6NrqkUzCUEWedB0HU9c="
seoDescription: "Build an easy Thermometer with Arduino, digital temperature sensor, and LCD display. Ideal DIY project for beginners."
videoLinks: []
heroImage: "https://cdn.jsdelivr.net/gh/bigboxthailand/arduino-assets@main/images/projects/easy-thermometer-v1-6aff6f_cover.jpg"
lang: "en"