You can use the liquid crystal library without i2c it just uses more pins

@@cheezmartian I brute forced it for like 30 minutes and finally got it lol

Yes, you can definitely use the Arduino Nano v3.0

Yes, an Arduino with one LED and a resistor is a series circuit. In this configuration, the current flows from the Arduino's Pin 3, through the LED, through the resistor, and back to the GND pin

I'm using Arduino

It's called Learn Arduino Intro. You can get it here: play.google.com/store/apps/details?id=com.arduinointro.learnarduinointro

Thank you very much​@@arduinointrochannel

It's a fun project to learn about real-time clocks and I2C communication. Plus, you can customize or scale it to fit your project needs like an automated gardening system where you can turn on/off grow lights or water pumps at certain times or specific days (using conditional logic), or you can use it to make a log, with a date and time stamp, of anything that is captured by sensors connected to this Arduino setup. Think of this as a foundation of the greater things you can do with creativity and innovation.

Thanks!

Sure! To modify the code to display time in 24-hour format, you can remove the logic for determining AM/PM and adjust the code to directly print the t.hr value as the hour. You can try this: void loop() { Time t = rtc.time(); // Display the time in 24-hour format lcd.setCursor(0, 0); lcd.print("Time "); if (t.hr < 10) lcd.print("0"); // Add leading zero if hour is less than 10 lcd.print(t.hr); lcd.print(":"); if (t.min < 10) lcd.print("0"); // Add leading zero if minutes are less than 10 lcd.print(t.min); lcd.print(":"); if (t.sec < 10) lcd.print("0"); // Add leading zero if seconds are less than 10 lcd.print(t.sec);

The I2C LCD and Wire libraries may not have been installed, or there could be a conflict with another installed LCD library. Check this article on how to download and install the libraries: www.arduinointro.com/articles/projects/displaying-characters-using-the-i2c-liquid-crystal-display-lcd

@arduinointrochannel Thank you for your respond then, what's the name of the library you install for this project? , i've already installed lcd 12c built in officially by arduino 1.0.7 isnt that the right library? And what's the name of wire library you use?

Make sure the LEDs are connected correctly (positive side to a digital pin and negative side to GND). It could also be a broken jumper wire, try to change the jumper wires.

A resistor may not be necessary for the buzzer. Take a look at this article: www.arduinointro.com/articles/projects/exploring-piezo-buzzer-integration-with-arduino-a-comprehensive-guide

This code will work on that board but to add the extra functionality to upload data, you'll have to try the Arduino Cloud IoT, they have tutorials on how to upload sensor data.

You can find the code here: www.arduinointro.com/articles/projects/how-to-use-a-water-level-sensor-with-arduino-a-step-by-step-guide

Yes, you can definitely add your own colors. Just adjust the RGB values in your code to create the perfect shade you want.

Yes, it should work on any kind of breadboard.

Sure, check out this article: www.arduinointro.com/articles/projects/complete-beginners-guide-to-using-a-water-level-sensor-with-arduino-and-i2c-lcd

I'm using an offline software called Fritzing.

Thanks! I wouldn't recommend it for drinking water, though. It would be better to use a non-contact sensor to detect water levels such as an ultrasonic sensor.

I'm not sure if I understand it correctly but I think it all depends on how moist you want the soil to be, which also depends on the types of plants. You can determine the moisture level by using the analogRead function.

You can try to use the automatic subtitles: 1. Click the "Subtitles" button (usually marked with the "CC" icon) under the video . 2. Go to settings (gear icon) and select "Subtitles". 3. Choose "Auto-translate" and select the desired language.

or you can try this: support.google.com/youtube/answer/13339776?hl=en

This sounds like an interesting modification to the project, I'll try to make a tutorial vid for this.

I just created an article for this. You can check it out here: www.arduinointro.com/articles/projects/how-to-create-an-arduino-menu-system-with-4-pushbuttons-and-an-i2c-lcd

Here's the link: www.arduinointro.com/articles/projects/displaying-characters-using-the-i2c-liquid-crystal-display-lcd

You are welcome!

We can use Ohm's Law for this to compute for the resistance given the voltage of the digital pin, but a 220- to 330-ohm resistor is safe to use for the LED.

Thanks!

You're welcome.

You're welcome.

Soil moisture sensors are pretty cheap, you can buy one for around $2 US.

That component is the main soil sensor module where the probe would be connected to.

@@arduinointrochannel is it like a relais?

no, it is not a relay

No problem

Yes, this will also work.

Sure! I'm planning to create a video on this soon. For now, you can read this article about using a motion sensor with a Liquid Crystal Display: www.arduinointro.com/articles/projects/diy-motion-detection-alarm-system-using-pir-sensor-i2c-lcd-and-piezo-buzzer Just replace the motion sensor with the soil moisture sensor, but you may have to tweak the code a bit.

Thanks! Glad it was helpful.

It seems like there might be an issue with the connection between your Arduino board and your computer. Usually, when this happens, I restart my computer and upload a simple working code like a blinking LED. If it works, then the problem might be with the sensor's wiring. You may also try changing the default programmer found in Tools->Programmer. Try AVR ISP, or Arduino as ISP. There could be a lot of factors going on with this error.

I did not use any library for this project.

I tried using an ultrasonic sensor before to measure water level. You can check this article for the code and circuit: www.arduinointro.com/articles/projects/using-the-hc-sr04-ultrasonic-sensor-to-detect-objects

First, you need to add the buzzer to your circuit, you may find the circuit here: www.arduinointro.com/articles/projects/exploring-piezo-buzzer-integration-with-arduino-a-comprehensive-guide Next, you can try this code: // Define the pins #define PIEZO_PIN 3 int waterSensorPin = A0; // Water level sensor connected to analog pin A0 int ledPin = 13; // LED connected to digital pin 13 void setup() { // Initialize serial communication at 9600 bits per second Serial.begin(9600); // Initialize the LED pin as an output pinMode(ledPin, OUTPUT); // Set the piezo pin as an output pinMode(PIEZO_PIN, OUTPUT); } void loop() { // Read the input on analog pin 0 int sensorValue = analogRead(waterSensorPin); // Print out the value you read Serial.print("Water Level: "); Serial.println(sensorValue); // Check if the water level is above a threshold if (sensorValue > 300) { // Adjust the threshold as necessary digitalWrite(ledPin, HIGH); // Turn the LED on tone(PIEZO_PIN, 1000); } else { digitalWrite(ledPin, LOW); // Turn the LED off noTone(PIEZO_PIN); } // Wait for a second before taking the next reading delay(1000); } Hope this helps!

@@arduinointrochannel Your a good youtuber looking at comments and providing solutions

@@dragonroyal9116 hey, thanks!

It sounds like there might be a wiring issue or a problem with the LED control circuit. Have you checked the connections or the code controlling the lights? Or it could just be a timing problem. Continue touching the sensor until the next mode appears and then lift your finger immediately. You only have half a second to do this. Or you could set the delay at 1 second.

@@arduinointrochannel ok

I'm using the Arduino IDE. You may download it here: www.arduino.cc/en/software

you're welcome!

Glad you liked it!