The source code for the sketch can be downloaded here: https://github.com/dmainmon/ESP8266-Soil-Moisture-Sensor. So I filled connectors (for ocean use to 200m) with vaseline, pushed (flowable) silastic into the voids between conductors in a cable, potted electronics etc. Navigate to the config.h tab and fill in your Adafruit IO username and key, as well as your local wifi network name and password, then upload the code to your ESP8266 microcontroller. The data collected every 10min shows that the ambient temperature and humidity graphs are pretty much inverse - a clear sign the pressure vent is working fine. Are power and ground connected as they should be throughout the circuit? The following steps are relevant to the integration with the Hydrosys4 system. Here we are building a IoT based Irrigation System using ESP8266 NodeMCU Module and DHT11 Sensor. Change), You are commenting using your Facebook account. Turning the screw on the potentiometer will change how much moisture is required to turn off/on the output. This is a very simplified solar-battery-charger system and is quite far from being optimized. The board also controls the RGB that is built into this garden light, which happens to be common anode, so I had to change that code as well. 5 years ago. All that technology isnt needed. Raspberry Pi as MQTT broker which saves the moisture values to an Influx database and visualize the soil moisture of the plan via Grafana. The program code is nearly exactly the same as I used to send the temperature and humidity to the MQTT broker. I grow cannabis hydroponically and use these to measure my grow medium to ensure I have reached the correct dry back before watering again. I tend to use the Adafruit ESP8266 Huzzah board type to program the NodeMCU ESP8266 board, but you can also install and use the Generic ESP8266 board support. Thats no secret. The ESP8266 is a great piece of electronics. Connect the soil moisture sensor FC-28 to the ESP8266 in analog mode. If you want more images to show along the page, just create more steps! Soil Moisture Monitoring using NodeMCU ESP8266, Soil Moisture Sensor, 0.96 OLED Display and Buzzer. , you mind telling how you were able to do that ? My mantra was: "If you can't hermetically seal the enclosure, ventilate it." Plants have no such defect. If you are using the hydrosys4 software with standard configuration you can type its IP address (192.168.1.172 if default) in the Host field or the IP of your MQTT broker. . Which is a very nice and inexpensive board. Exposure to extreme temperatures can cause damage and shorten the battery's life, so bring it inside if it's below freezing or above 45/113F. I picked up that original piece of code from the following link: ESP8266 SOIL MOISTURE SENSOR WITH ARDUINO IDE This was actually a really great place to start since it also covered some of the other things I would have to do in order to be able to program my new boards using the Arduino IDE. How strong the electrolysis will be depends on how often and how much current is passed through the electrodes. Theoretically you can use any of these combinations, but you have to calibrate your sensor before you declare that your soil is wet or dry. Note: MQTT is a standard protocol ence the sensor and ESP can be integrated with any system supporting the MQTT protocol as for example Home Assistant . I hope you like this article. Its important to create a solderless breadboard prototype for projects like this, so you can make sure your sensor and code are working before making any permanent connections. If it doesn't work, chances are something went wrong during the soldering. The w in the name is for WiFi as the built-in ESP-32 module then takes the moisture reading and sends an update wirelessly via MQTT. . IoT. A deeper look at the TP4056 shows that this device should not be used to supply the load and the battery at the same time, and I think that this is one of the reason most of the time it fails to provide the required voltage as a switch. If there is too little water, the plant looks wilted. covering should have a hydrophobic layer to allow water vapor but not water through. My house plants will be part of the Internet of Things! In my case I chose HygroWiFi. We will use this name later. That last one seems tricky to get right; not too dry and not drowning them either, so [rbarons] green solder-masked w-parasite wireless soil monitor turns this responsibility over to your existing home automation system. Share it with us! The default gateway for my router was different, so I had to change that, and I wanted a specific IP for each board, so I had to specify static IPs in the code for each individual board. I specifically test when the battery goes too low and the power disconnect. The solar charger's Load pins will provide 3.7V battery power when no solar power exists, but will be powered directly from the solar panel if it's plugged in and sunny. Either the wrong pins were connected or excess solder bled over to another connection. I have some Capacitive soil moisture sensors. Contribute to kaiezer1980/ESP8266-capacitive-soil-moisture-sensor-v1.2-mqtt development by creating an account on GitHub. I'll consider drilling some tiny holes on whichever side ends up facing down in my final installation. add to list. Making and sharing are my two biggest passions! But you have to keep in mind that the analog sensor value is dependent on the operating voltage. After creating feeds for temperature and humidity, you can create a dashboard for your monitor featuring a graph of the sensor values and both incoming feeds' data. As explained later in the article, Tasmota has a nice recovery feature that reset the configuration to default in particular events, one of this for example is when it tries to restart for several times in a row and cannot properly restart (which it happen with this system, but not for the SW problem but for the power problem). Saying where does it end disregards the most basic knowledge of what plants need, dynamic systems, hysteresis, etc. Hey friends in this video I will show you how to make a Soil Moisture sensor Notification system for plants using BlynkVisit my Website to Download Codes and. Check the erase before flashing box, select the .bin file you have previously downloaded and click Tasmotize. And the print looks not so good protected from moisture , Please be kind and respectful to help make the comments section excellent. I wanted to try and connect these sensors to MQTT. Click save, the D1mini will reboot, now, connect again to its WiFi network, type the following address in the web-browser: click scan wifi networks, chose your wifi network, add password, save. These can be purchased online for less than $10 each. Then it will only check-in when the plant needs it. Why only the red LED works on NodeMCU 12E?Whatever the values, all above 25, there will no LED turn on! If your code uploads but your serial monitor input is unrecognizable, double check your baud rate matches that specified in your sketch (38400 in this case). My sensor designs are open source, check them out for inspiration: https://www.tindie.com/stores/miceuz/. I tested the charging capacity and battery duration. This site uses Akismet to reduce spam. Check the previous breadboard setup step for the wiring diagram (one of the photos). My house plants will be part of the Internet of Things! If you like this project, you may be interested in some of my others: To keep up with what I'm working on, follow me on YouTube, Instagram, Twitter, Pinterest, and Snapchat. The output voltage given by it is 0 - 4.2V. It is especially helpful when the scale of your grow increases. Would you use the ADC (assuming it has one or more onboard) with a voltage divider, then define thresholds in the code to achieve this dynamic upload period you described? The following Arduino script reads the analog sensor value of the soil moisture sensor. It works! In my setup I connect directly the battery voltage which should range from (2.9 to 4.2 volts) to this chip. This project is part of my free Solar Class, where you can find easy backyard projects and more lessons on working with solar panels. [rbaron] has shared a string of wireless hacks, controlling the A/C over Slack and a BLE Fitness Tracker that inspired more soldering than jogging. Therefore I will speed up this example because you find a step by step tutorial in the following two articles: First we build the part of the NodeMCU to send the sensor values to the MQTT broker. Mark B Jones has updated the log for Sat Nav & Telemetry Console for Scuba Divers. The ESP8266 is used to read the analog signal produced by a soil moisture sensor probe. (the TP4056 has one resistor that can be changed to adapt to the battery capacity, this optimization has not been done). If it was then why wifi instead? In this case, the soil sensor has stranded wires to it was necessary to temporarily attach solid headers to the ends of the sensor wires using solder, helping hands, and some heat shrink tubing. There are several solutions to make the solar setup work. You only need two. So to type to the console SetOption36 0 should be sufficient. The ESP8266 is used to read the analog signal produced by a soil moisture sensor probe. >the weeds in the cracks of city streets do better than our houseplants The following picture is the one I collected the data over several days. The sensor is working so far and could be used in this way, but I noticed a few small things which I would like to discuss with you. This sensor measures the volumetric content of water inside the soil and . Open up the example sketch ReadSHT1xValues and change the pin numbers to 12 (dataPin) and 14 (clockPin), or copy the modified sketch here: Upload this code to your board and open up the serial monitor to see the sensor data stream in. To survive, plants need nutrients, light, and water. One gateway, many technologies: MQTT gateway for ESP8266, ESP32, Sonoff RF Bridge or Arduino with bidirectional 433mhz/315mhz/868mhz, Infrared communications, BLE, beacons detection, mi flora / mi jia / LYWSD02/ Mi Scale compatibility, SMS & LORA. Now go to the setting page and click show MQTT clients. Question First you will need an ESP8266. // The client id identifies the ESP8266 device. But thanks for further explaining the benefits! You can translate this to your preferred microcontroller. Yes, but you need to consider the current through the potential divider and its affect on overall sleep current. This is how my set up look like. Reasoning being if you have just watered the plant sufficiently there is less need to monitor it at all frequently but as it approaches dry level there needs to be more reports to ensure unhealthy levels are not hit. 4 years ago, I ran into that problem too. Intermediate Full instructions provided 2,826 Things used in this project Story The Intro Frequently I am too busy and forget to water the plants. hey, am unable to reach the webpage through the ip address provided by the controller or even by static ip addresscan anyone plssssss helpare there any pre-requisites for performing this exercise Answer As you can see the support for the panel and the box was 3D printed. I'm currently in the process of building a solar garden light with the ESP8266 and moisture sensor built in. The lower the measured resistance, the higher is the amount of water in the soil. Here is a list of premium benefits. The other aspect is that it does not have a voltage stabilizer at 3.3v. Now connect the ESP8266 to the header sockets and position it on the prototype board. At the beginning of the Arduino script we define the analog pin of the microcontroller. Indeed these are very nice instructions. If your serial monitor input doesn't seem correct, double check your wiring against the circuit diagram. For low duty cycle applications, you can achieve almost any battery life target you want. I think it may be that we are using a different sensor. The following picture shows the N-Channel MOSFET circuitwith the soil moisture sensor for the different microcontroller boards. Hi everyone, I have a capacitive soil moisture sensor (v1.2) and would like to send the data via MQTT. Some people just lack responsibility and motivation to do it regularly, and consistently. If the soil's levels fall below my specified level, I'll get an email every time the feed is updated until I water the soil. Solved. output_value = map(output_value,1024,510,0,100); In this code, I'm simply dividing output up into 100 pieces, the range being 1024 (Dry sensor) to 510, which is my sensor, submerged in a container of my local tap water. This will cause a quite important issues as explained in the following chapter. So, I decided to build a web enabled moisture sensor to let me know when my house plants need water. Have a look at https://github.com/rbaron/w-parasite#why-not-bluetooth-low-energy-ble. Also we define the digital output pin that is connected to the gate of the MOSFET to switch the sensor on and off. One is connected directly to the Hydrosys PCB, but I'm also trying to use one connected to an ESP8266 and using MQTT to send the data to Hydrosys. These components run using Docker containers. I really like this idea. Insert the port side of a waterproof power cable into one and solder it to the solar chargers DC input (red to + and black to -). Plug in your battery and turn on the circuit by pressing the power switch. That's what I thought I read in the part documentation, just wanted to bring it up. Did you make this project? The main code is inside the setup function, because I use the deep-sleep function of the NodeMCU to reduce the electrolysis on the soil moisture sensor. Now there actually are ways to do that without affecting the measurement collected; for instance decoupling the measurement and upload periods by saving several measurements and uploading them all at once, so you can amortise the large wifi cost of an upload across them. (LogOut/ Small(ish) solar panel charging up a few large(ish) capacitors would be ideal here. I used two plants in this example, and two analog sensor readings were done. Capacitive Soil Moisture Sensor: measures the moisture of the soil, and produces the readings as analog stream. Exactly my point (assuming I correctly understood yours), that's why I added the pressure vent. Use the Influx database and the username and password you set before. This means that unlike resistive soil moisture sensors, here the copper traces are protected from corrosion by the solder mask. You may also notice that a connection between ESP Reset and GPIO16 has been made, this will be needed to put the ESP in deep sleep mode (to save energy for the battery). In this case for the connection to the sensors I used the following pins: NOTE: the below solution is commonly used in many projects that can be found on internet. Soldering equipment to solder the circuit connections. At reconnect I often find the tasmota configuration is reset to factory for the part relevant to the Hardware configuration. 5 years ago. // client.connect returns a boolean value to let us know if the connection was successful. This article to show how I connected my digital soil moisture sensor to a ESP8266 WiFi chipset in particular using two configurations, one with the Wemos D1 mini and the other with ESP-01. The latest version of the sensor has current consumption in idle of about 40uA and about 3.8mA when in reading state. For more information about the Arduino Nano, visit the Arduino Nano Tutorial. A Plant Monitor with ESP8266 and Capacitive Soil Moisture Sensor (MQTT-Broker Version) dns mqtt esp8266 monitoring mqtt-broker plant led mqtt-client water wemos-d1-mini watering soil-moisture-sensor soil . :) If you need help with any of your embedded Arduino applications please send me a message. To set the deepsleep and disable the recovery mode go to main menu ->Console and type the following command to set the D1 mini in deep sleep for 30 minutes: You will notice the blue led is not flashing anymore. // If the connection is failing, make sure you are using the correct MQTT Username and Password (Setup Earlier in the Instructable). 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