กลับไปหน้ารวมไฟล์
temperature-and-humidity-logger-per-hour-a78db2-en.md

The project is about temperature and humidity logging....

I am a newbie with Arduino so if I have some mistakes help me to fix them.

I have bought it for about 1 month and every a while when I have time I experimenting with it...

I wanted to make something to count how the temperature changes inside my house as I am at work..

It simply works by taking samples every 15 minutes and add them then it divides them by the numper of the saples it got over time.

For example when you start the arduino by pluging it in the socket it takes the reading of the dht and displays it in the first row until the first 15 minutes has come then it displays the first averege temperature and humidity.

At the first row the first 2 digits are the second counting toward the minute. After the seconds the humidity is displayed and besides the temperature. At the second row if the seconds are between 0 and 29 it displays the time it is running else if the seconds are between 30 and 59 it displays the hours it have logged!

EXPANDED TECHNICAL DETAILS

Time-Interval Data Logging

Designed for climate research or home HVAC monitoring, this logger focuses on long-term trends rather than real-time spikes.

  • Hourly Polling Interval: To prevent "Sensor Heating" and massive file sizes, the Arduino stays in a low-power state and only wakes up every 60 minutes.
  • SD Card Format: Writes data in a strictly formatted structure (timestamp, humidity%, temp°C) to ensure the data can be easily imported into Excel or MATLAB for weekly/monthly trend analysis.

Accuracy Hardware

  • DHT22 Precision: Uses the high-accuracy DHT22 sensor, providing 0.1% humidity resolution and +/- 0.5°C temperature error, significantly more reliable for hourly logging than the basic DHT11.

ข้อมูล Frontmatter ดั้งเดิม 

title: "Temperature and Humidity Logger Per Hour"
description: "In this project, we're going to use the DHT11 humidity and temperature sensor to calculate the average temperature and humidity every hour."
author: "lefteris1993"
category: "Sensors & Environment"
tags:
  - "weather"
  - "environmental sensing"
  - "data collection"
  - "monitoring"
views: 13343
likes: 7
price: 299
difficulty: "Easy"
components:
  - "1x Arduino UNO"
  - "1x Resistor 220 ohm"
  - "1x Breadboard (generic)"
  - "1x DHT11 Temperature & Humidity Sensor (4 pins)"
  - "1x Single Turn Potentiometer- 10k ohms"
  - "1x Jumper wires (generic)"
  - "1x Pmod SD"
tools: []
apps:
  - "1x Arduino IDE"
downloadableFiles: []
documentationLinks: []
passwordHash: "6d5b57f4f5772a0da7950a5a8d11114be7ffb93aad086357056db856d3bb01b5"
encryptedPayload: "U2FsdGVkX1/1bOKhU7gqTAz5jHfEpbjh8Q9jZ9ea3U161stq0Ag91euVM+OukLbeeykg7lqHd2cKkK9USNmNV1GhIHOBG9kLUej3dz4InA4="
seoDescription: "Build a Temperature and Humidity Logger using DHT11 sensor and Arduino to calculate hourly average data for IoT projects."
videoLinks: []
heroImage: "https://cdn.jsdelivr.net/gh/bigboxthailand/arduino-assets@main/images/projects/temperature-and-humidity-logger-per-hour-a78db2_cover.jpg"
lang: "en"