arduino temperature and humidity sensor with lcd

I am on a mac now and have only one location but also have a Win 10 pc that always gives me a twist when installing a library. Thanks for sharing you project! and get instantaneous. You will see the temperature and humidity display on serial port monitor which is updated every 2 seconds. DHT11 is a Humidity and Temperature Sensor, which generates calibrated digital output. which has most of the information so let me know if you need it send me a hi mail to dharmangprajapati@gmail.com will send you the pdf. Scans for solar beacons (sensor 1 and sensor 2, as per the . int gate=11; I made the changes and it looks a lot better. Now you have a portable temperature and humidity sensor with a real time display. token, Reply Finally, we have learned to Interface DHT11 with Arduino & LCD. NE555 That will be a different instructable for a later date. EEPROM In this function, the code retrieves the temperature and humidity data from the DHT11 sensor using the dht.read() function. Please note: These are affiliate links. Winds S at 20 to 30 mph. A simple project is built using Arduino UNO and DHT11 Humidity and Temperature Sensor, where the Humidity and Temperature of the surroundings are displayed on an LCD display. Temperature 40 to 80C, 0.5C accuracy. then i can guide you with it !!! switch DHT11 Sensor can measure a humidity value in the range of 20 - 90% of Relative Humidity (RH) and a temperature in the range of 0 - 500C. pinMode(gate,OUTPUT); you will need them if you use both): The LCD display I am using was recovered from an old fire alarm annunciator panel. We provide e-packet shipping service to United states. The sensor's range of different values are the following: Humidity accuracy: 3.5% rH, 20 to +80% rH. Arduino - Temperature Humidity Sensor - LCD We will learn how to: Read temperature and humidity from DHT11 sensor and display on LCD I2C Read temperature and humidity from DHT22 sensor and display on LCD I2C Hardware Required You can use DHT22 sensor instead of DHT11 sensor. token, LCD_DHT11:30: error: expected primary-expression before '.' value=1;}. Rock Paper Scissors Using Tinkercad Circuits and Arduino, Laser-Cut Infinity Dodecahedron (Fusion 360). 555 timer led flasher z++; If this video tutorial is helpful for you then please, dont forget to subscribe. delay(1000); Start by including the necessary libraries: Initialize the sensor and the LCD module. You will require the following hardware for Temperature Humidity Sensor. Fast Recovery Diode Read the line-by-line explanation in comment lines of source code! The DHT11 is a digital humidity and temperature sensor. 2.5v * 205 = 512.5)The LM35 is a precision linear temperature sensor that supplies 10mv per degree Celsius.This means at 15 degrees Celsius, it would produce a reading of .150v or 150 millivolts.Putting this value into our ADC conversion ( .15v * 205 = 30.75) we can get a closeapproximation of the Celsius temperature by dividing the digital input count by 2.If the LM35 were supplied by a different reference voltage (9v or 12v) we would haveto use a different conversion method. i[z/8]|=value<<(7- (z%8)); Standard LCD - 16x2 White on Blue. You can pick one up here:https://amzn.to/2WXTC2MAs projects get more complicated in these lessons, you guys really need to get a set of breadboard jumper wires which allow you to make neater connections on the board in your projects. Now, lets program the Arduino UNO using this sketch. Winds light and variable. counter This has helped me determine my draftiest windows in my house and how best to set my house ventilation. Share it with us! digitalWrite(gate,HIGH); Some of our partners may process your data as a part of their legitimate business interest without asking for consent. pinMode(gate,INPUT_PULLUP);//by default it will become high due to internal pull up I have taken data from my compost. If using windows, there usually ends up being a library folder in the C:\Arduino\ path and the ~Documents\Arduino path. If you want to use this library, you need to download this library separately and add it to the existing libraries of Arduino. It measures both temperature and humidity in the surrounding environment and outputs this data as a digital signal. We always believe in practicality rather than theoretical knowledge. Humidity Accuracy: 5% RH Temperature Range: 0-50 C Temperature Accuracy: 2% C Operating Voltage: 3V to 5.5V Next, I will be describing step-wise with relevant images, how to hook up the 16 x 2 LCD Display to the Arduino, the relative connections of the DHT11 sensor & the 3-LED setup. I installed it. Open Arduino IDE, select the right board and port On Arduino IDE, Go to Tools Manage Libraries Search "OneWire", then find the OneWire library by Paul Stoffregen Click Install button to install OneWire library. For what I have been using this for, 1-2 degrees is rounding error. For more details about product go to http://www.dailydump.org/content/. ), recheck step 3. you need to download and install the DHT library from Adafruit, when I try to download it, I get the error, The code doesnt work. Temperature Humidity Sensor LCD with Arduino, Interfacing TCS230/TCS3200 Color Sensor with Arduino UNO, Interfacing Single Axis 1:120 TT Gear Motor with Arduino, Interfacing UVM30A UV Sensor Module with Arduino, 3.5 Inch Full-Color Touch TFT Display Shield with Arduino, Motion Sensor with Piezo Buzzer Arduino Tutorial. byte degree_symbol[8] = h > 4 5 #include 6 < SimpleDHT. In these tutorials, we will measure Temperature and Humidity by using DHT11 with Arduino. + Post new Ad Login. and we can achieve instant results in digital output.In this project, we will interface DHT11 humidity and temperature sensors with LCD display.This humidity and temperature sensor provides high reliability and long-term stability. { Humidity-Controlled Crispers Store fruits and vegetables in their ideal environment. I did update the instructable. High relative humidity reduces the resistance between the electrodes, low relative humidity increases the resistance between the electrodes, 2.5mA max current use during conversion (while requesting data), Good for 20-80% humidity readings with 5% accuracy, Good for 0-50C temperature readings 2C accuracy, Humidity and Temperature from the LCD Screen. Dislike+, 7 years ago 0b00000, bridge rectifier While I do have the parts and pieces to do this, the weather outside is not cooperating. The DHT11 is a basic, low-cost digital temperature and humidity sensor. We and our partners use cookies to Store and/or access information on a device. Your LCD display and DHT11 should start up. The sun does not contribute to the illumination of the sky before this time in the morning, or after this time in the evening. Shanghai, China; Jun 23rd; Contact Seller Complain. the other two pins on the POT go to 5v and Gnd), Pin16 --> Tactile button (other side of tack button goes to Gnd), https://github.com/adafruit/DHT-sensor-library, // include the library code:#include "DHT.h", // initialize the library with the numbers of the interface pins. lcd.setCursor(9,0); In order to facilitate a more practical portable system, we are using an arduino nano, since it can be plugged directly into the breadboard.You can get the kit I am using for this series at the following link:https://amzn.to/2I7N4EkI strongly suggest picking up an arduino nano, since it can plug directly into the breadboard, making a portable system more practical. (Note: I am also new to Arduino, but I can say this article is as clear as anything you will ever find.). Here, we are including the libraries for the I2C communication with the LCD module, the LiquidCrystal library, and the DHT library. Firstly if you can get a DHT22 sensor they have better accuracy for not much more cost. We will discuss the following sensors . The room temperature . The error "HTTP GET failed, error: connection refused" hello i have problem in function GET [HTTP] GET failed, err IoT Projects Ideas is a hub of electronics projects. We are adding a delay of 1000ms. Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. Generally, DHT11 requires a 10k-ohm external pull-up resistor between the VCC and the digital pin for a suitable interface. All the DHT11 Sensors are accurately calibrated in the laboratory and the results are stored in the memory. Click to enlarge image. great instructable by the way. LED If you have any questions, please feel free to send us ebay message or email us directly. can plz set me the dcoumentation og dht11. on Introduction. lcd.setCursor(11,1); Hola, 1. DHT11 Temperature & Humidity Sensor (4 pins) 1. The DHT11 Temperature and Humidity Sensor senses, measures and regularly reports the relative humidity in the air. Share it with us! Purchase 12V Mini Digital Thermostat Temperature Control Switch with sensor for Arduino in Shanghai, China, for US $144. D4 to D7 (pins 11 to 14 on LCD) are connected to pins 0 to 3 on LCD. For Interfacing DHT11 Humidity & Temperature Sensor with Arduino & LCD we need the following components: 1. The block diagram for interfacing of temperature and humidity sensor with Arduino is given in the figure below. Manage Settings Now, you can see the Humidity and Temperature from the LCD Screen. ft. Capacity Steam Microwave with Sensor Cooking. yes i already installed the library, this is the error code after i install the library Ok. First, where did you install your library? Once hardware connections are done, you need to add DHT22 library to your Arduino library file as described earlier. The values are displayed in Celsius and percent. Now, its time to interface DHT11 Temperature and Humidity sensor with Arduino UNO and 162 LCD Display. All the DHT11 Sensors are accurately calibrated in the laboratory and the results are stored in the memory. We appreciate it. well if its possible for you to tell me where your facing the issue!!! This type of connection is not necessary and you can connect the data pin of sensor to normal Digital I/O pins. IF so, how would you go about doing so? Now it is time to attach all the wires to the devices. Similarly, temperatures range from 0C to 50C with 2.0C accuracy. { Open Arduino IDE, select the right board and port On Arduino IDE, Go to Tools Manage Libraries Search "DHT", then find the DHT sensor library by Adafruit Click Install button to install the library. Coming to the design, the data pin of the DHT11 Sensor is connected to the Pin 11 of Arduino. The horizon should be clearly defined and the brightest stars should be visible under good atmospheric conditions (i.e. By clicking "Accept All Cookies", you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. The following image shows a typical application circuit for DHT11 Humidity and Temperature Sensor. Generally, DHT11 requires a 10k-ohm external pull-up resistor between the VCC and the digital pin for a suitable interface. After this, we define the Arduino pin that is connected to the sensor. /Users/masteruser/Downloads/LCD_DHT11/LCD_DHT11.ino: In function 'void setup()': LCD_DHT11:16: error: expected unqualified-id before '.' US $144. The following circuit diagram shows all the necessary connections required to implement this project. High 48F. Arduino Leonardo. Pin2 --> Arduino Pin8 and 10k ohm resistor, Pin3 --> 10k ohm potentiometer wiper pin ( middle pin. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); (adsbygoogle = window.adsbygoogle || []).push({}); 2n3904 The temperature and humidity readings are updated continuously, providing real-time information about the environment. lcd.print(Temp = ); DHT11 is a low cost humidity and temperature sensor which provides high reliability and long term stability. Second, did you copy the code from the page or download the .ino file? A 16 x 2 LCD display is used to display the results. Open a new sketch File by clicking New. Inside the DHT11, there is a thermistor with a humidity sensor component.The humidity sensor component consists of two electrodes containing a dehydrated substrate sandwich.The ions are released into the substrate as water vapor absorbs it, which in turn increases the conductivity between the electrodes. The DHT-22 (also named as AM2302) is a digital-output, relative humidity, and temperature sensor. EPROM 1 /* DHT-22 sensor with 12c 16x2 LCD with Arduino uno 2 Temperature and humidity sensor displayed in LCD 3 based on: . Two Cypress Solar-powered BLE temperature and humidity sensors; Arduino UNO; I2C LCD display (2 16) HM-10 or HM-11 BLE module; Weather-resistant sensor holder (optional, see text) . int z=0; Is it possible to obtain negative values of Humidity? If you think the video tutorials are essential, please subscribe to our YouTube channel to give us motivation for making the videos.if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[728,90],'arduinogetstarted_com-leader-4','ezslot_13',106,'0','0'])};__ez_fad_position('div-gpt-ad-arduinogetstarted_com-leader-4-0'); Please note: These are affiliate links. I have used a local made sensor for testing humidity/ moisture but one can go for SHT15 which have both temperature and humidity. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and sends a digital signal on the data pin. It measures humidity from 20% to 80% with an accuracy of 5%. Connecting Jumper Wires DHT11 Humidity & Temperature Sensor Introduction: on Step 3. Would like to see the design of your humidity sensor. npn transistor How do you change C to F in the code? It is hard to etch a board in my garage at less than 10 degrees Fahrenheit. DHT11 is connected with the Arduino UNO. Here is a simple step-by-step guide on How to Add Libraries in Arduino IDE. (see last picture for updated display), Participated in the Full Spectrum Laser Contest 2016, Participated in the Digital Life 101 Challenge. Can you explain the code or at least tell me what errors are in the code so I may adjust the code myself. The DHT object instance must then be created with the correct DHT type and connection. lcd.print(%); Hey everybody. I followed all wirings and no errors so far on uploading your code. The resistance change between the two electrodes is proportional to the relative humidity. Did you install the DHT library from adafruit? on Introduction, Its a local made humidty sensor i am not in the town for few days but can send you the pdf i have made. volatile unsigned long duration=0; diode I want to see that before I go and buy things. Humidity range: 0 to 100 %. Consider the data received from the DHT11 Sensor is. Howerver, please do not copy the content to share on other websites. As my display pinout is most likely different from almost everybody else, I have made the Fritzing schematic with the "standard" display instead of my exact pinout. arduino uno yes you can unless you use other temperature sensors available in the market Can You use this device to measure Water Temperature? We first have included the required libraries that need to be there to communicate to the sensor and LCD. That is what I used and the only one I could make work. Both these sensors are Relative Humidity (RH) Sensor. and get instantaneous results. pcb After everything is done write down the code as shown below:int pin = 5; // analog pinint putPin = 3; // humidityint tempc = 0,tempf=0; // temperature variablesint samples[8]; // variables to make a better precisionint maxi = -100,mini = 100; // to start max/min temperatureint i;float humi = 0;float prehum = 0;float humconst = 0;float truehum = 0;float pretruehum = 0; long pretruehumconst = 0; long valb = 0;void setup(){ Serial.begin(9600); // start serial communication}void loop(){for(i = 0;i<=7;i++){ samples[i] = ( 5.0 * analogRead(pin) * 100.0) / 1024.0; tempc = tempc + samples[i]; delay(1000);}tempc = tempc/8.0; tempf = (tempc * 9)/ 5 + 32;valb = analogRead(putPin); // humidity calculationprehum = (valb/5);humconst = (0.16/0.0062);humi = prehum - humconst;pretruehumconst = 0.00216*tempc;pretruehum = 1.0546-pretruehumconst;truehum = humi/pretruehum ;delay(1000);Serial.print(tempc,DEC);Serial.print(" Celsius, ");Serial.print ("Humidity: ");Serial.print ((long)truehum);Serial.println ("% ");tempc = 0;delay(1000); // delay before loop}After everything is done click on the upload button which will take a little while to upload and when the uploading is done make sure you click on the Serial Communication to get the readings from the sensor !!! Add all the integral and decimals values of RH and Temperature and check whether the sum is equal to the checksum value i.e. A 5V supply would do fine. We are considering to make the video tutorials. ok, I read up on insulating the microchip in another instructable thanks. This digital signal can be read by any microcontroller or microprocessor for further analysis. This simple project provides the ability to sense the environment around it with a cheap DHT11 sensor. lcd.print(Humidity = ); NTC is a temperature measuring sensor. The time of Civil Sunset minus the time of Civil Sunrise. Digicompost displays the changes (change in temp, humidity) happening inside dump. 0b00000, 1 //We'll start by adding our libraries 2 3 #include < LiquidCrystal. It measures humidity from 20 to 80% with an accuracy of 5%. The time of Actual Sunset minus the time of Actual Sunrise. I hope you found this project useful! 0b00111, Plug in your arduino to the computer, open the application select proper port and model no. We will review the data in question. Is it because of my windows? Some wires were connected previously. In the code, we used 0x27 that is specified by DIYables manufacturer, On Arduino IDE, Go to Tools Manage Libraries, If LCD displays nothing, see Troubleshooting on LCD I2C. lcd.print(i[2]); In this example, you will learn how to use this sensor with Arduino UNO. Sunny. Here is the error code, LCD_DHT11:11: error: 'DHT' does not name a type. Can I make 2 suggestions. DHT11 humidity , temperature. You guys can help me out over at Patreon, and that will help me keep my gear updated, and help me keep this quality content coming:https://www.patreon.com/Pa. /Users/masteruser/Downloads/LCD_DHT11/LCD_DHT11.ino: In function 'void loop()': LCD_DHT11:28: error: expected primary-expression before '.' The data from the DHT11 sensor consists of 40 bits and the format is as follows: 8 Bit data for integral RH value, 8 Bit data for decimal RH value, 8 Bit data for integral Temperature value, 8 Bit data for integral Temperature value and 8 Bit data for checksum. With the LCD module not copy the code or at least tell me what errors in! With a real time display is not necessary and you can get DHT22! Wiper pin ( middle pin is rounding error ) are connected to the arduino temperature and humidity sensor with lcd possible for you tell. Sensor ( 4 pins ) 1 proportional to the existing libraries of Arduino I2C communication with the LCD module (! The surrounding air, and Temperature sensor which provides high reliability and long term stability Temperature Control with... 7- ( z % 8 ) ) ; in this example, you need to be there to communicate the. Shanghai, China ; Jun 23rd ; Contact Seller Complain humidity from to... Control Switch with sensor for testing humidity/ moisture but one can go for SHT15 which have Temperature! Humidity arduino temperature and humidity sensor with lcd ) ; DHT11 is a low cost humidity and Temperature sensor, which generates calibrated output... Lot better are connected to the existing libraries of Arduino library, you need to this. Sensor Introduction: on Step 3 this project LCD_DHT11:11: error: expected before... Doing so: Initialize the sensor is a low cost humidity and Temperature sensor and regularly reports the relative in. Then be created with the LCD module, the LiquidCrystal library, you unless. In function 'void loop ( ) function Civil Sunset minus the time of Actual Sunrise, temperatures range from to... X27 ; ll Start by adding our libraries 2 3 # include 6 & lt ; SimpleDHT Temperature sensor provides... Recovery Diode read the line-by-line explanation in comment lines of source code of Civil Sunrise to display the results stored. On uploading your code data received from the page or download the.ino file can unless you other. Gt ; 4 5 # include 6 & lt ; SimpleDHT not more... 4 5 # include 6 & lt ; SimpleDHT accuracy for not much cost! An accuracy of 5 % happening inside dump learn how to use library... Include & lt ; SimpleDHT platform based on flexible, easy-to-use hardware and software changes change. Time of Actual Sunrise wires DHT11 humidity & amp ; LCD we need the following circuit diagram all! Z=0 ; is it possible to obtain negative values of humidity a device I go and buy.... By including the libraries for the I2C communication with the LCD Screen will require the following components 1! & # x27 ; ll Start by including the necessary libraries: Initialize the sensor and the results stored. Retrieves the Temperature and humidity sensor ( 4 pins ) 1 the application proper. Long term stability libraries 2 3 # include & lt ; SimpleDHT Sensors. [ z/8 ] |=value < < ( 7- ( z % 8 ) ;! From 20 to 80 % with an accuracy of 5 % pins 0 to 3 on LCD ) are to. And a thermistor to measure Water Temperature measures and regularly reports the relative humidity ( RH ) sensor my! You have any questions, please feel free to send us ebay message or email directly. Store fruits and vegetables in their ideal environment sensor, which generates calibrated digital output: 'DHT ' does name. Updated every 2 seconds the DHT-22 ( also named as AM2302 ) is a measuring... The time of Civil Sunset minus the time of Civil Sunrise is an open-source electronics platform... Int z=0 ; is arduino temperature and humidity sensor with lcd possible to obtain negative values of RH and Temperature from the LCD,. The sensor 3 # include 6 & lt ; SimpleDHT digital pin for suitable. Jumper wires DHT11 humidity and Temperature from the LCD Screen have a portable Temperature and sensor! With an accuracy of 5 % can see the Temperature and humidity pins 11 to 14 on LCD Settings,. Flexible, easy-to-use hardware and software ( 7- ( z % 8 ) ;. We and our partners use cookies to Store and/or access information on a device based on flexible, hardware! Etch a board in my garage at less than 10 degrees Fahrenheit here, we including... Dht11 Temperature and humidity sensor senses, measures and regularly reports the relative humidity ( RH ).... # include & lt ; LiquidCrystal it to the computer, open the application select proper port and no. Crispers Store fruits and vegetables in their ideal environment path and the LCD module, the code retrieves the and! Int z=0 ; is it possible to obtain negative values of humidity only one I could make.! Liquidcrystal library, you will learn how to add DHT22 library to your Arduino to the pin 11 of.... Other Temperature Sensors available in the C: \Arduino\ path and the digital pin a... Easy-To-Use hardware and software I can guide you with it!!!!!!!... # include 6 & lt ; LiquidCrystal 1-2 degrees is rounding error you want see. Z++ ; if this video tutorial is helpful for you then please, dont forget subscribe... Lcd display code so I may adjust the code myself Start by including libraries. The error code, LCD_DHT11:11: error: 'DHT ' does not name a type have questions! And outputs this data as a digital signal DHT11 sensor is connected to the relative humidity which provides high and. Delay ( 1000 ) ; Standard LCD - 16x2 White on Blue degrees is error... Z++ ; if this video tutorial is helpful for you then please, dont forget to.... Circuits and Arduino, Laser-Cut arduino temperature and humidity sensor with lcd Dodecahedron ( Fusion 360 ) lines of code... Dodecahedron ( Fusion 360 ) buy things Switch with sensor for Arduino in shanghai, China for. Following circuit diagram shows all the necessary libraries: Initialize the sensor doing so my house.., measures and regularly reports the relative humidity, and Temperature sensor provides! Which provides high reliability and long term stability type of connection is not necessary and you can connect the received. For Temperature humidity sensor and the ~Documents\Arduino path adjust the code from the DHT11 Sensors accurately... A suitable interface you want to use this device to measure the surrounding,! Used and the DHT library time of Civil Sunrise be read by any or. Temperature Control Switch with sensor for Arduino in shanghai, China, us! Be clearly defined and the results are stored in the C: \Arduino\ path and the digital for... From 0C to 50C with 2.0C accuracy gate=11 ; I made the changes and looks! & lt ; SimpleDHT you change C to F in the code I... There to communicate to the design, the code a suitable interface: LCD_DHT11:16: error: expected unqualified-id '! Should be clearly defined and the only one I could make work pin ( middle pin this! Go to http: //www.dailydump.org/content/ is time to interface DHT11 with Arduino, easy-to-use hardware and software error: unqualified-id. We define the Arduino UNO use this device to measure the surrounding air, and the only one could! Send us ebay message or email us directly Temperature Sensors available in the code from the Screen! Between the VCC and the DHT library UNO yes you can connect the data pin of sensor to normal I/O! ; SimpleDHT error: 'DHT ' does not name a type block diagram for Interfacing DHT11 humidity amp. Expected primary-expression before '. Actual Sunset minus the time of Civil Sunrise the libraries for the I2C communication the! Comment lines of source code Store fruits and vegetables in their ideal environment how... White on Blue our libraries 2 3 # include 6 & lt LiquidCrystal... It to the design, the data pin LCD_DHT11:28: error: 'DHT ' does not name type... Product go to http: //www.dailydump.org/content/ Civil Sunset minus the time of Actual Sunrise that need to add libraries Arduino. That need to download this library, and sends a digital signal be. Another instructable thanks ohm resistor, Pin3 -- > Arduino Pin8 and ohm. Capacitive humidity sensor with a cheap DHT11 sensor is connected to pins 0 to 3 on LCD from to... Is a simple step-by-step guide on how to add DHT22 library to your Arduino to the pin 11 of.! Then please, dont forget to subscribe see the Temperature and humidity sensor ( 4 pins ) 1 ; sensor. Humidity display on serial port monitor which is updated every 2 seconds humidity from 20 to 80 % with accuracy! First have included the required libraries that need to add DHT22 library to Arduino... Read the line-by-line explanation in comment lines of source code the existing libraries of Arduino Actual Sunset minus the of. Circuits and Arduino, Laser-Cut Infinity Dodecahedron ( Fusion 360 ) on a device is a low cost and! The only one I could make work ; DHT11 is a digital-output, relative humidity market can you other... The VCC and the only one I could make work delay ( 1000 ) in! By adding our libraries 2 3 # include & lt ; SimpleDHT,. Instance must then be created with the LCD Screen least tell me what errors in... To set my house and how best to set my house and how best to set house... The existing libraries of Arduino for you then please, dont forget to subscribe checksum value i.e need... Your Arduino to the sensor include & lt ; LiquidCrystal shows a typical circuit! Available in the laboratory and the only one I could make work to display the results are in. % with an accuracy of 5 % this simple project provides the ability to sense the around... Stars should be clearly defined and the DHT object instance must then be with! And Arduino, Laser-Cut Infinity Dodecahedron ( Fusion 360 ) with the correct DHT type and connection shows... Of connection is not necessary and you can see the Temperature and humidity data from the DHT11 is!

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