Comments on: Arduino and DHT11 output to LCD module

By: Claudio

Claudio — Tue, 17 Mar 2020 14:14:49 +0000

Try a different DHT….like the 22,for negative readings.

By: Claudio

Claudio — Tue, 17 Mar 2020 14:03:06 +0000

The DHT11 only senses values of temperature within the range of 0-50 degrees celcius

By: Subash Kumar Yadav

Subash Kumar Yadav — Wed, 12 Feb 2020 12:15:03 +0000

How can i solve the compile error for arduino………………………..

By: sravya

sravya — Mon, 02 Dec 2019 12:57:38 +0000

What is the difference between Arduino and micro controller, I interfaced Arduino to LCD only 4 data lines, rs, enable but 8051 micro controller I connected all the data lines to 8051 port what is the difference b/w both controllers ??
http://bigbelectronics.in/product.php?product=20×4-line-lcd-display-blue-backlight-hd44780-all-arduino-rasp-pi-avr-arm-8051

By: Anonymous

Anonymous — Thu, 26 Sep 2019 20:52:07 +0000

delete dht_u

By: satya

satya — Thu, 19 Sep 2019 12:53:40 +0000

#include
#include

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
int greenPin = A0;
dht sensor;

void setup()
{
lcd.begin(16,2); //16 by 2 character display
}

void loop()
{
delay(1000); //wait a sec (recommended for DHT11)
sensor.read11(greenPin);
lcd.clear();
lcd.setCursor(0,0);
lcd.print(“Humidity = “);
lcd.print(sensor.humidity);
lcd.setCursor(0,1);
lcd.print(“Temp = “);
lcd.print(sensor.temperature);
}

can i use the same code and connections for the display 20×4-line-lcd-display

By: Keith Bouckley

Keith Bouckley — Sun, 11 Aug 2019 00:42:16 +0000

try changing
from/home/brucez/Arduino/libraries/DHT_sensor_library/DHT_U.h:2
To
#include dht11();

Keith

By: HelpPls

HelpPls — Sat, 15 Jun 2019 00:48:48 +0000

I got an error message.
Arduino: 1.8.8 (Linux), Board: “Arduino/Genuino Uno”

In file included from /home/brucez/Arduino/libraries/DHT_sensor_library/DHT_U.cpp:22:0:
/home/brucez/Arduino/libraries/DHT_sensor_library/DHT_U.h:25:29: fatal error: Adafruit_Sensor.h: No such file or directory
#include

^
compilation terminated.
exit status 1
Error compiling for board Arduino/Genuino Uno.

This report would have more information with
“Show verbose output during compilation”
option enabled in File -> Preferences.
Please help. I don’t know what to do.

By: Bülent Zorlu

Bülent Zorlu — Sun, 19 Aug 2018 11:56:12 +0000

#include wrong
#include correct

dht sensor; wrong
dht11 sensor correct

sensor.read11(greenPin); wrong
sensor.read(greenPin); correct this is important

By: Bülent Zorlu

Bülent Zorlu — Sun, 19 Aug 2018 11:47:37 +0000

I found an error

#include
#include

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
int greenPin = A0;
dht11 sensor;

void setup()
{
lcd.begin(16,2); //16 by 2 character display
}

void loop()
{
delay(1000); //wait a sec (recommended for DHT11)
sensor.read(greenPin);
lcd.clear();
lcd.setCursor(0,0);
lcd.print(“Humidity = “);
lcd.print(sensor.humidity);
lcd.setCursor(0,1);
lcd.print(“Temp = “);
lcd.print(sensor.temperature);

}