""", """The callback for when a PUBLISH message is received from the server. Prepare the solar charging board by soldering on its capacitor and some wires to the load output pads. Because there are two different types of sensors, we describe the functionality of each one in the first chapter. Follow the circuit diagram to wire up the sensor's power, ground, clock, and data pins (data also gets a 10K pull-up resistor that comes with the soil sensor). Any tips would be appreciated. You only have to comment the parts that you do not need based on my comments in the script. Alternately, have an led that flashes or a piezo that buzzes every few minutes once watering is needed. 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. Here's a tutorial I made a while back about rugged-izing electronics projects for wearables purposes, too: You don't want to have any uncovered holes in the enclosure. In a different configuration I also used the ESP-01: This board is more efficient from power consumption side, but requires an external device to be programmed and needs some soldering to go in deep sleep as explained later in this article. Check your Arduino/libraries folder for one called SHT1x, and if it's somewhere else, like your downloads folder, move it to your Arduino libraries folder, and rename if it necessary. Reply ESP32 can do LoRaWAN ! Low voltage DC wiring can be thin, easily hid. 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. Being my first ESP8266 project I wanted to create a simple device that would perform a real world task. Soil Moisture Monitoring using NodeMCU ESP8266, Soil Moisture Sensor, 0.96 OLED Display and Buzzer. If your microcontroller draws a lot of power and can't easily be made to sleep, consider porting your project to a compatible board that draws less power. i use microsoft edge or firefox as my browser but i cant find it anywhere or is it only available for pro users?Thanks a lot in advance, I saw this on a list of features for premium users at one point, but it might not be available anymore. There are several solutions to make the solar setup work. What do you think of the idea of adding a silica gel packet inside the enclosure? A breadboard and some jumper wire to setup and test the connections. Mark B Jones has added a new log for Sat Nav & Telemetry Console for Scuba Divers. The ESP8266 has a deep sleep feature which we used in the Arduino sketch to reduce its power consumption dramatically. The red LED (if (chartValue I even thought that the NodeMCU was broken so took a new one but with the same result. Which is a very nice and inexpensive board. Theres no need for an external fet. Connect to it, open the browser and type http://192.168.4.1/mq on the address bar. But lets first have a look at the PIN which have some influence on the boot of the ESP: We should definitely avoid using PINs which can cause boot failure. The lower the measured resistance, the higher is the amount of water in the soil. 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. Install the two cable glands. // If the message failed to send, we will try again, as the connection may have broken. Take a walk, look closely and youll know why. The solution proposed below uses one components, easy to find online, inexpensive and easy to connect. Soil moisture is basically the amount/content of water present in the soil. Really great work. Now it is time to start loading the SW to the ESP boards and configure the Tasmota for the connection with our home wifi network and MQTT. 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. 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 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. The following picture is the one I collected the data over several days. But thanks for further explaining the benefits! instead of all at one place! There's several advantages to using these headers. The other trick if you really want to switch it is to connect the bottom leg of the divider to another gpio pin instead of ground, configured as open-drain. If you need a refresher on getting started with Adafruit IO, check out this lesson in my Internet of Things Class. Your device may not be connecting to your wireless network. Are data and clock connected to the correct pins? If the sensor detects low moisture the LED is red, medium is green and high moisture is blue. Follow the photo progression above for illustrations of how to wire up the breadboard connections. Insert the soil sensor through the other gland, and connect it up to the perma-proto as per the circuit diagram. We can use the tasmotizer tool to write the SW, the tool can be found in the below Link: The Link provides a guide to install the SW in several Operative systems.Then simply run tasmotizer software, you will get the following window: If the ports do not appear (in linux systems) first try to restart. On the other side I left enough space to easily plug in the RGB LED. I had a raspberry pi reading the BLE data and pushing it via MQTT to HA. It's all the rage. The complete Title string should be like this: tele/HygroWiFi/SENSOR//SlowWire-04/Humidity, The first part before the double // is made by a constant string + the title of esp: tele/