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dht11-temperature-and-humidity-on-i2c-1602-lcd-6c76fa-en.md

Visuino cut the time on this by a large amount!

On my last project I noticed that Visuino was in the Software section when creating a project. I looked into it and what I found was amazing! I have been struggling learning Arduino because I don't know how to code. This was putting a huge obstacle before me and it was taking a long time to get projects to work. Visuino cut that time down exponentially. This is my first project using Visuino.

Don't melt the sensor when you test it with heat...like I did!

Project:

DHT11 Temperature and Humidity sensor printing to an I2C 16x02 LCD. This project measures ambient temperature and humidity and displays both on the LCD. This is a standard Arduino beginner project.

Purpose:

To try Visuino to see how it works.

So much easier and neater than the non i2C LCD

NOTE:

You might need to install Visuino first and upload a project to Arduino for the initial Visuino libraries to install to Arduino. Alternatively, you could create the project in Visuino from scratch and create your own version.

EXPANDED TECHNICAL DETAILS

Environmental Dashboard Integration

This project provides a professional-grade readout for home climate monitoring using the widely-supported DHT11 sensor.

  • One-Wire Data Decoding: The Arduino uses the DHT library to decode the 40-bit data packet from the sensor. This packet contains both 8-bit humidity and 8-bit temperature components, along with a parity bit for error checking.
  • I2C Protocol Efficiency: Communicates with the 16x2 LCD via the I2C bus (using the PCF8574 adapter), requiring only 2 data pins (SDA/SCL) instead of the traditional 6.

Visual Polish

  • Dynamic Unit Display: (Advanced version) Includes custom "degree" symbols and a health-indicator icon on the LCD, created using the createChar() function.

ข้อมูล Frontmatter ดั้งเดิม 

title: "DHT11 Temperature and Humidity on I2C 1602 LCD"
description: "A basic and quick sketch using Visuino."
author: "Tishin"
category: ""
tags:
  - "temperature"
  - "humidity"
  - "visuino"
  - "1602 lcd"
  - "i2c lcd"
views: 32988
likes: 3
price: 1120
difficulty: "Easy"
components:
  - "1x Arduino UNO"
  - "1x Solderless Breadboard Half Size"
  - "1x DHT11 Temperature & Humidity Sensor (3 pins)"
  - "1x I2C 16 x 2 LCD"
  - "1x Male/Male Jumper Wires"
  - "7x Male/Female Jumper Wires"
tools: []
apps:
  - "1x Arduino IDE"
  - "1x Arduino Web Editor"
  - "1x Visuino - Graphical Development Environment for Arduino"
downloadableFiles:
  - "https://create.arduino.cc/editor/Tishin/1786c52c-4d08-4266-9162-283579fb0467/preview"
  - "https://create.arduino.cc/editor/Tishin/1786c52c-4d08-4266-9162-283579fb0467/preview"
documentationLinks: []
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seoDescription: "Display DHT11 Temperature and Humidity on I2C 1602 LCD using Visuino."
videoLinks:
  - "https://www.youtube.com/embed/22b00U1F0mQ"
heroImage: "https://cdn.jsdelivr.net/gh/bigboxthailand/arduino-assets@main/images/projects/dht11-temperature-and-humidity-on-i2c-1602-lcd-6c76fa_cover.jpg"
lang: "en"