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d여기에서 #411 Ten Fluid Level (Water Level) Sensors and how to use them (Arduino, ESP32, ESP8266) – grove water level sensor 주제에 대한 세부정보를 참조하세요
Measuring levels of liquids is a common problem. Where I live, it is probably more the water level of the coffee machine, in rural areas the level of a water tank, and in the industry the level of chemical substances. There are many different ways to get this job done. If you stick around, I will show you ten different sensors and, as usual, we will learn some new tricks.
– Sensors that react on fluid level thresholds
– Sensors that measure the fluid level
– Sensors that have to be mounted inside and sensors that are mounted outside the tanks
– Sensors for the top and for the bottom of the tanks
– And, as usual, you get some background info on the sensor interfaces
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VL53L1X TOF sensor (4m) : https://s.click.aliexpress.com/e/_ATvJC4
VL53L0X TOF sensor (2m) : https://s.click.aliexpress.com/e/_97st9m
Ultrasonic Sensor (7m) : https://s.click.aliexpress.com/e/_A8Xi6k
Threaded pressure sensors (e.g. 30psi) : https://s.click.aliexpress.com/e/_9uwKJO
Capacitive Threshold sensor : https://s.click.aliexpress.com/e/_9A4bLa
Metal threshold sensor : https://s.click.aliexpress.com/e/_AWQfDQ
Plastic threshold sensor : https://s.click.aliexpress.com/e/_9GCwTe
Ultrasonic Sensor (4m) : https://s.click.aliexpress.com/e/_A2Ad0G
Throw.in pressure sensor : https://s.click.aliexpress.com/e/_AtXYrm
Thresold sensor Steel : https://s.click.aliexpress.com/e/_9QAJQY
Capacittive moisture sensor : https://s.click.aliexpress.com/e/_AUp7J2
Resisitve moisture sensor : https://s.click.aliexpress.com/e/_AUu5j6
Differential pressure Sensor: https://s.click.aliexpress.com/e/_97URk1
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grove water level sensor 주제에 대한 자세한 내용은 여기를 참조하세요.
Grove – Water Level Sensor (10CM) for Arduino – ELEDIY
The Grove Water Level Sensor is a very accurate sensor that can be helpful in water level sensing applications. It is completely waterproof and uses …
Source: elediy.com
Date Published: 9/25/2021
View: 4842
Grove – water level sensor – 10cm – Seeedstudio Botland
The Grove sensor used to detect the presence of water or its quantity. It is powered with the voltage of 5 V. It can be used to detect the presence, level or …
Source: botland.store
Date Published: 6/19/2021
View: 614
주제와 관련된 이미지 grove water level sensor
주제와 관련된 더 많은 사진을 참조하십시오 #411 Ten Fluid Level (Water Level) Sensors and how to use them (Arduino, ESP32, ESP8266). 댓글에서 더 많은 관련 이미지를 보거나 필요한 경우 더 많은 관련 기사를 볼 수 있습니다.
주제에 대한 기사 평가 grove water level sensor
- Author: Andreas Spiess
- Views: 조회수 89,645회
- Likes: 좋아요 4,176개
- Date Published: 2021. 12. 12.
- Video Url link: https://www.youtube.com/watch?v=KawRd5evHyY
How does Grove water sensor work?
…
Step 4.
| Seeeduino | Grove – Water Sensor |
|---|---|
| Not Conencted | White |
| D2 | Yellow |
What is water level sensor?
Level sensors are used to detect the level of substances that can flow. Such substances include liquids, slurries, granular material and powders. Level measurements can be done inside containers or it can be the level of a river or lake.
What is Grove sensor?
Seeed Studio Grove Sensors are part of the Grove system of modulated, ready-to-use tools. Seeed Studio Grove sensors consist of a base shield and various modules with standardized connectors. The base shield allows for easy connection of any microprocessor input or output from the Grove modules.
How does liquid level sensor work?
Some types of liquid level sensor use a magnetic float, which rises and falls with the liquid in the container. Once the liquid, and by extension, the magnet, reach a certain level, a reed magnetic switch is activated.
How do you calibrate a water sensor?
…
How to Use a Capacitive Level Sensor:
- Step 1: Press “Up” Buttons. …
- Step 2: Press ”Down” Buttons. …
- Step 3: Press “Z” Until You Reach 4mA. …
- Step 4: Raise Water Level. …
- Step 5: Adjust Span to Indicate 20mA. …
- Step 6: Verify Low Water Level Is 4mA.
What are the different types of level sensors?
There are two main classifications for level sensors: point level sensors and continuous level sensors. Point level sensors are designed to indicate whether a liquid has reached a specific point in a container. Continuous level sensors, on the other hand, are used to render precise liquid level measurements.
How does a water tank level indicator work?
Water level indicators work by using sensor probes to indicate water levels in a storage tank. These probes send information back to the control panel to trigger an alarm or indicator. As mentioned above, the control panel can be programmed to automatically turn on your pump to refill the water again.
How do rain sensors work?
An infrared light beams at a 45-degree angle on a clear area of the windshield from the sensor inside the car. When it rains, the wet glass causes the light to scatter and lesser amount of light gets reflected back to the sensor.
What is a water sensor for a house?
They’re usually connected to a control panel, remotely or with a wire. The alarm has a sensor that detects water and triggers the control panel to sound an alarm, loudly in the home or via a phone alert. Because most water alarms are inexpensive, they’re a low-risk investment for any homeowner worried about leaks.
How is groundwater detected?
“Dowsing,” “water witching,” “divining,” and “doodlebugging” are all names for the practice of locating groundwater by walking the surface of a property while holding a forked stick, a pair of L-shaped rods, a pendulum, or another tool that responds when the person moves above a location that will yield an adequate …
How does the water sensor from SimpliSafe work?
It emits an audible alert when it touches water to provide an immediate warning, and it works with SimpliSafe alarm monitoring plans to deliver email alerts when you’re away. This SimpliSafe water sensor has double-sided tape to hold it securely in areas where water damage is possible.
Water Sensor
Grove – Water Sensor
The Water Sensor module is part of the Grove system. It indicates whether the sensor is dry, damp or completely immersed in water by measuring conductivity. The sensor traces have a weak pull-up resistor of 1 MΩ. The resistor will pull the sensor trace value high until a drop of water shorts the sensor trace to the grounded trace. Believe it or not this circuit will work with the digital I/O pins of your Arduino or you can use it with the analog pins to detect the amount of water induced contact between the grounded and sensor traces.
Product Version Changes Released Date Grove-Water Sensor V1.1 Initial July 2014
Grove compatible interface
Low power consumption
2.0cm x 2.0cm Grove module
High sensitivity
Applications Ideas¶
Rainfall detecting
Liquid leakage
Tank overflow detector
Item Min Typical Max Unit Working Voltage 4.75 5.0 5.25 V Current <20 mA Working Temperature 10 - 30 ℃ Working Humidity (without condensation) 10 - 90 % Tip More details about Grove modules please refer to Grove System Platforms Supported¶ Arduino Raspberry Pi Caution The platforms mentioned above as supported is/are an indication of the module's software or theoritical compatibility. We only provide software library or code examples for Arduino platform in most cases. It is not possible to provide software library / demo code for all possible MCU platforms. Hence, users have to write their own software library. Getting Started¶ Note If this is the first time you work with Arduino, we firmly recommend you to see Getting Started with Arduino before the start. Play With Arduino¶ Connect the module to the Basic board using any of the digital pin. You can gain the value of the signal pin. When there is water on the bare conducting wires, the value is LOW. Otherwise, it will be HIGH. Step 1. Prepare the below stuffs: Step 2. Connect Water Sensor to port D2 of Grove-Base Shield. Connect Water Sensor to port D2 of Grove-Base Shield. Step 3. Plug Grove - Base Shield into Seeeduino. Plug Grove - Base Shield into Seeeduino. Step 4. Connect Seeeduino to PC via a USB cable. Note If we don't have Grove Base Shield, We also can directly connect Grove_Water_Sensor to Seeeduino as below. Seeeduino Grove - Water Sensor 5V Red GND Black Not Conencted White D2 Yellow Step 1. Copy the code into Arduino IDE and upload. If you do not know how to upload the code, please check how to upload code. #define WATER_SENSOR 2 void setup () { Serial . begin ( 9600 ); pinMode ( WATER_SENSOR , INPUT ); } void loop () { Serial . println ( digitalRead ( WATER_SENSOR )); delay ( 500 ); } 1 1 0 0 1 1 Play with Codecraft¶ Step 1. Connect a Grove - Water Sensor to port D2 of a Base Shield. Step 2. Plug the Base Shield to your Seeeduino/Arduino. Step 3. Link Seeeduino/Arduino to your PC via an USB cable. Step 1. Open Codecraft, add Arduino support, and drag a main procedure to working area. Note If this is your first time using Codecraft, see also Guide for Codecraft using Arduino. Step 2. Drag blocks as picture below or open the cdc file which can be downloaded at the end of this page. Upload the program to your Arduino/Seeeduino. Success When the code finishes uploaded, you will see there is water or not in Serial Monitor. Play With Raspberry Pi (With Grove Base Hat for Raspberry Pi)¶ Step 1. Things used in this project: Step 2 . Plug the Grove Base Hat into Raspberry Pi. . Plug the Grove Base Hat into Raspberry Pi. Step 3 . Connect the Grove - Water Sensor to to the A0 port of the Base Hat. . Connect the Grove - Water Sensor to to the A0 port of the Base Hat. Step 4. Connect the Raspberry Pi to PC through USB cable. Step 1 . Follow Setting Software to configure the development environment. . Follow Setting Software to configure the development environment. Step 2. Download the source file by cloning the grove.py library. cd ~ git clone https://github.com/Seeed-Studio/grove.py Step 3. Excute below command to run the code. cd grove.py/grove python grove_water_sensor.py 0 Following is the grove_water_sensor.py code. import math import sys import time from grove.adc import ADC class GroveWaterSensor : def __init__ ( self , channel ): self . channel = channel self . adc = ADC () @property def value ( self ): return self . adc . read ( self . channel ) Grove = GroveWaterSensor def main (): if len ( sys . argv ) < 2 : print ( 'Usage: {} adc_channel' . format ( sys . argv [ 0 ])) sys . exit ( 1 ) sensor = GroveWaterSensor ( int ( sys . argv [ 1 ])) print ( 'Detecting ...' ) while True : value = sensor . value if sensor . value > 800 : print ( ” {} , Detected Water.” . format ( value )) else : print ( ” {} , Dry.” . format ( value )) time . sleep ( .1 ) if __name__ == ‘__main__’ : main ()
Success If everything goes well, you will be able to see the following result
pi @raspberrypi : ~/ grove . py / grove $ python grove_water_sensor . py 0 Detecting … 612 , Dry . 749 , Detected Water . 829 , Dry . 357 , Dry . 98 , Dry . 352 , Dry . 517 , Dry . 718 , Detected Water . 868 , Detected Water . 581 , Dry . 90 , Dry . 326 , Dry . 451 , Dry . 666 , Dry . 867 , Detected Water . 684 , Dry . 100 , Dry . ^ CTraceback ( most recent call last ): File “grove_water_sensor.py” , line 71 , in < module > main () File “grove_water_sensor.py” , line 62 , in main value = sensor . value File “grove_water_sensor.py” , line 48 , in value return self . adc . read ( self . channel ) File “/usr/local/lib/python2.7/dist-packages/grove/adc.py” , line 66 , in read return self . read_register ( addr ) File “/usr/local/lib/python2.7/dist-packages/grove/adc.py” , line 84 , in read_register return self . bus . read_word_data ( self . address , n ) File “/home/pi/.local/lib/python2.7/site-packages/smbus2/smbus2.py” , line 396 , in read_word_data ioctl ( self . fd , I2C_SMBUS , msg ) KeyboardInterrupt
You can use this sensor to detect the water. Press Ctrl + C to quit.
Notice You may have noticed that for the analog port, the silkscreen pin number is something like A1, A0, however in the command we use parameter 0 and 1, just the same as digital port. So please make sure you plug the module into the correct port, otherwise there may be pin conflicts.
Play With Raspberry Pi(with GrovePi_Plus)¶
Step 1. Prepare the below stuffs:
Step 2. Plug the GrovePi_Plus into Raspberry.
Plug the GrovePi_Plus into Raspberry. Step 3. Connect Grove-Water Sensor to D2 port of GrovePi_Plus.
Connect Grove-Water Sensor to port of GrovePi_Plus. Step 4. Connect the Raspberry to PC through USB cable.
Step 1. Follow Setting Software to configure the development environment.
Follow Setting Software to configure the development environment. Step 2. Navigate to the demos’ directory:
cd yourpath/GrovePi/Software/Python/
Step 3. To see the code
nano grove_water_sensor.py
import time import grovepi # Connect the Grove Water Sensor to digital port D2 # SIG,NC,VCC,GND water_sensor = 2 grovepi . pinMode ( water_sensor , “INPUT” ) while True : try : print grovepi . digitalRead ( water_sensor ) time . sleep ( .5 ) except IOError : print “Error”
Step 4. Run the demo.
sudo python grove_water_sensor.py
Step 5. We will see the output display on terminal as below.
1 1 0 0 1
Schematic Online Viewer¶
Water Level Sensors & Liquid Level Sensors
RS Hydro have a wide range of pressure, ultrasonic, open channel, radar and capacitance level sensors and transmitters for sale and hire. For more information about the level sensors and transmitters we supply please select from one of the options below:
Level sensors are used to detect the level of substances that can flow. Such substances include liquids, slurries, granular material and powders. Level measurements can be done inside containers or it can be the level of a river or lake. Such meaurements can be used to determine the amount of materials within a closed container or the flow of water in open channels.
Radar level sensors can be used for more difficult applications including environments where there are significant vapours or dust such as steam. Radar is also ideal for long-range applications or where the dialetric properties of the fluid will not allow ultrasonic devices to work.
Our range of pressure level sensors provide a low-power, high accuracy solution for many level monitoring applications. The PT2X, PTX1830/1730 & PT12 level sensors represent the leading edge of level sensing technology.
Ultrasonic level sensors are ideal for a wide range of applications including water, wastewater, bulk solids and high viscocity liquids. Ultrasonic controllers are ideal for pump and level control applications.
RS Hydro has a wide range of level sensors for measuring flows in open channel applications using ultrasonic, pressure and laser technologies. Many of our open channel flow measurement technologies are available for rental and purchase.
Pressure Level Sensors
Hydrostatic pressure level sensors are submersible sensors used for measuring the level of liquids (including corrosive liquids) in deep tanks or water in reservoirs. Pressure water level loggers provide accuracy and reliability across a wide range of applications.
Ultrasonic Water Level Transmitters
Non-contact ultrasonic level sensors emit ultrasonic (20 kHz to 200 kHz) acoustic waves from a transducer which also detects and measures the reflected waves. This type of sensor is ideal for measuring bulk solids such as sand, cement, grain, rice and plastic pellets as well as liquids with high viscosity such as slurries, heavy oil, grease and latex.
Capacitance Level Sensors
Often called RF due to the radio frequency signals that are applied to the capacitance circuits, these type of sensors are excellent for measuring a wide range of liquids, slurries and solids. Capacitance level sensors can be used to measure media with dielectric constants between 1.1 and 90. Capacitance level sensors are rugged, contain no moving parts, are easy to clean and simple to use.
Radar Level Sensors
Also known as microwave level sensors, radar level sensors are ideal for use in environments where temperature varies and in moist, dusty or vaporous environments. The microwaves are able to penetrate temperature and vapour layers that can be problematic for other types of water level sensor. Objects with high dielectric constants such as metal and conductive water will reflect microwaves. Conversley, media with low dielectric constants (glass, plastics, food stuffs, paper) will absorb the microwaves by varying degrees.
Radar water level sensors are ideal for use in a vacuum as the microwaves are electromagnetic energy and don’t require air molecules to propogate.
Grove – Water Level Sensor (10cm) for Arduino
The Grove – Water Level Sensor for Arduino can be used to measure the water level up to 10cm deep, with 5mm accuracy.
Features
Easy to use (Use Grove Connector without soldering)
Based on capacitive sensing
Waterproof
Conformal Coating
Corrosion Resistant
Detect up to 10cm water levels
I2C Interface
Specifications
2 x 8-bit ATTINY1616 MCUs
Compatible with 3.3/ 5V power supply
Measurement Accuracy: ±5mm
Uses two I2C addresses at the same time: 0x78 and 0x77
Working Temperature Range: -40°C to 105°C
Weight: 9.8g
Dimensions: 20mm x 133mm
Note: The blue oil layer on the surface of the module’s capacitance sensing area should be kept intact. When the oil layer is damaged and the test object is a conductive liquid, the test data may be abnormal.
Buy Grove – Water Level Sensor – 10CM for Arduino online in India
The Grove Water Level Sensor is a very accurate sensor that can be helpful in water level sensing applications. It is completely waterproof and uses capacitive pads to detect water levels up to 10cm.
Well…A few months ago, we thought of developing a water level sensor, but we wanted it to be different, unlike traditional water level sensing techniques such as using Ultrasonic Sensing and Resistance Based Sensing.
We have tested out different water level sensing methods such as using Non-contact capacitance-based sensing where we placed the sensor outside the container filled with liquid and also use a Carbon Stick to detect the water level.
But we figured that the results we got were not up to our expectations and after long period of use, the Carbon started to chemically react with water which made this technique not ideal.
So, we finally came up with a solution by using Capacitance Sensing technique. We used capacitive pads on the PCB of the module and did conformal coating over the PCB to make the sensor protect against moisture, dust, chemicals and high temperatures. We believe that this technique will allow you to make accurate water level measurements (±5mm accuracy) easily.
Let’s look at the difference between few water level sensing methods.
Ultrasonic Distance Sensor Sensor based on Resistance Grove – Water Level Sensor Principle Ultrasonic Waves Resistance Capacitance Communication Interface Digital Analog I2C Operating Voltage 3.3/5V 3.3/5V 3.3/5V Waterproof No Yes Yes
We have dedicated our time to help you get started with this sensor quickly and easily. Try the example code and experience the demo above with clear codes.
Features :
Easy to use (Use Grove Connector without soldering)
Based on capacitive sensing
Waterproof
Conformal Coating
Corrosion Resistant
Detect up to 10cm water levels
I2C Interface
Specifications :
2 x 8-bit ATTINY1616 MCUs
Compatible with 3.3/ 5V power supply
Measurement Accuracy: ±5mm
Uses two I2C addresses at the same time: 0x78 and 0x77
Working Temperature Range: -40°C to 105°C
Weight: G.W 9.8g
Dimensions: 20mmx 133mm
Applications :
Tank overflow detection
Liquid level sensing applications
Documents:
Package Includes :
1 x Grove Water Level Sensor
1 x 20cm Grove Cable
ECCN/HTS
Grove-Water-Level-Sensor/water-level-sensor-demo.ino at master · SeeedDocument/Grove-Water-Level-Sensor
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Grove – Water Level Sensor (10cm) for Arduino มาพร้อมสายไฟ (แท้จาก SeeedStudio)
รายละเอียดสินค้า
The Grove Water Level Sensor is a very accurate sensor that can be helpful in water level sensing applications. It is completely waterproof and uses capacitive pads to detect water levels up to 10cm.
Features Easy to use (Use Grove Connector without soldering)
Based on capacitive sensing
Waterproof
Conformal Coating
Corrosion Resistant
Detect up to 10cm water levels
I2C Interface
Hardware Overview
Description
What better way to describe a product without having a story behind it? Well…A few months ago, we thought of developing a water level sensor, but we wanted it to be different, unlike traditional water level sensing techniques such as using Ultrasonic Sensing and Resistance Based Sensing.
We have tested out different water level sensing methods such as using Non-contact capacitance-based sensing where we placed the sensor outside the container filled with liquid and also use a Carbon Stick to detect the water level.
But we figured that the results we got were not up to our expectations and after long period of use, the Carbon started to chemically react with water which made this technique not ideal.
So, we finally came up with a solution by using Capacitance Sensing technique. We used capacitive pads on the PCB of the module and did conformal coating over the PCB to make the sensor protect against moisture, dust, chemicals and high temperatures. We believe that this technique will allow you to make accurate water level measurements (±5mm accuracy) easily.
Let’s look at the difference between few water level sensing methods.
Ultrasonic Distance Sensor Sensor based on Resistance Grove – Water Level Sensor Principle Ultrasonic Waves Resistance Capacitance Communication Interface Digital Analog I2C Operating Voltage 3.3/5V 3.3/5V 3.3/5V Waterproof No Yes Yes
Specifications
2 x 8-bit ATTINY1616 MCUs
Compatible with 3.3/ 5V power supply
Measurement Accuracy: ±5mm
Uses two I2C addresses at the same time: 0x78 and 0x77
Working Temperature Range: -40°C to 105°C
Weight: G.W 9.8g
Dimensions: 20mmx 133mm
Note The blue oil layer on the surface of the module’s capacitance sensing area should be kept intact. When the oil layer is damaged and the test object is a conductive liquid, the test data may be abnormal.
Grove – Water Level Sensor (10CM) for Arduino
Features
Easy to use (Use Grove Connector without soldering)
Based on capacitive sensing
Waterproof
Conformal Coating
Corrosion Resistant
Detect up to 10cm water levels
I2C Interface
Description
What better way to describe a product without having a story behind it?
Well…A few months ago, we thought of developing a water level sensor, but we wanted it to be different, unlike traditional water level sensing techniques such as using Ultrasonic Sensing and Resistance Based Sensing.
We have tested out different water level sensing methods such as using Non-contact capacitance-based sensing where we placed the sensor outside the container filled with liquid and also use a Carbon Stick to detect the water level.
But we figured that the results we got were not up to our expectations and after long period of use, the Carbon started to chemically react with water which made this technique not ideal.
So, we finally came up with a solution by using Capacitance Sensing technique. We used capacitive pads on the PCB of the module and did conformal coating over the PCB to make the sensor protect against moisture, dust, chemicals and high temperatures. We believe that this technique will allow you to make accurate water level measurements (±5mm accuracy) easily.
Let’s look at the difference between few water level sensing methods.
Ultrasonic Distance Sensor Sensor based on Resistance Grove – Water Level Sensor Principle Ultrasonic Waves Resistance Capacitance Communication Interface Digital Analog I2C Operating Voltage 3.3/5V 3.3/5V 3.3/5V Waterproof No Yes Yes
Specifications
2 x 8-bit ATTINY1616 MCUs
Compatible with 3.3/ 5V power supply
Measurement Accuracy: ±5mm
Uses two I2C addresses at the same time: 0x78 and 0x77
Working Temperature Range: -40°C to 105°C
Weight: G.W 9.8g
Dimensions: 20mmx 133mm
Note
The blue oil layer on the surface of the module¡¯s capacitance sensing area should be kept intact. When the oil layer is damaged and the test object is a conductive liquid, the test data may be abnormal.
Attention
When testing, the highest liquid level inserted should not exceed the white dividing line, otherwise it will cause a short circuit.
Part List
Grove Water Level Sensor x 1
20cm Grove Cable x 1
Grove – water level sensor – 10cm – Seeedstudio
Description: Grove – water level sensor – 10 cm – Seeedstudio 101020635.
Sensor to measure the water level in a vesselup to 10 cmusing the Arduino module. The measurement is madeby volume.The tile is equipped with aGroveconnector, for simple connection to the BaseShield cap. It communicates through theI2Cinterface. The module is powered by3.3 V or 5 V.
Example of sensor application.
Arduino compatible product The manufacturer provides auser guide forArduino.
Water level sensor connection
The water level sensor module is equipped with a Grove connector, thanks to which it can be easily connected to the BaseShield base unit. It communicates through popular I2C interface with Arduino module.
Water level sensor leads.
Attention! The electronic part should not be in contact with water, it can lead to damage to the system.
Water level sensor specifications
Power supply voltage: 3.3 V or 5 V
The deal: 2x 8-bit Attiny1616
Measurement accuracy: ± 5 mm
Communication: I2C – uses two addresses simultaneously: 0x78 and 0x77
Operating temperature: -40°C to 105°C
Dimensions: 133 x 20 mm
Weight: 9 g
The set includes
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사람들이 주제에 대해 자주 검색하는 키워드 #411 Ten Fluid Level (Water Level) Sensors and how to use them (Arduino, ESP32, ESP8266)
- arduino
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- eevblog
- electronics
- esp32
- esp32 datasheet
- esp32 project
- esp32 tutorial
- esp32 weather station
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- esp8266 datasheet
- esp8266 project
- greatscott
- guide
- hack
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- how to
- iot
- lorawan
- nodemcu
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- simple
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- wemos
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- level sensors
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- pressure
- water
#411 #Ten #Fluid #Level #(Water #Level) #Sensors #and #how #to #use #them #(Arduino, #ESP32, #ESP8266)
YouTube에서 grove water level sensor 주제의 다른 동영상 보기
주제에 대한 기사를 시청해 주셔서 감사합니다 #411 Ten Fluid Level (Water Level) Sensors and how to use them (Arduino, ESP32, ESP8266) | grove water level sensor, 이 기사가 유용하다고 생각되면 공유하십시오, 매우 감사합니다.
