Design with Arduino MKR ENV Shield rev2 in Cirkit DesignerThe Arduino MKR ENV Shield rev2 is a versatile sensor shield designed for the Arduino MKR series. It provides a range of environmental sensing capabilities, including temperature, humidity, barometric pressure, light intensity, and air quality measurements. This shield is ideal for projects that require environmental monitoring, such as weather stations, smart agriculture, and indoor air quality systems.
By integrating multiple sensors into a single shield, the MKR ENV Shield rev2 simplifies the process of collecting environmental data, making it a powerful tool for both hobbyists and professionals.
This circuit is an environmental monitoring system using an Arduino Sensor Shield. It includes sensors for gas (MQ-2), light (LDR), and temperature (DS18B20), and features a 16x2 I2C LCD for display, an HC-05 Bluetooth module for wireless communication, and a fan motor, buzzer, and LEDs for alert mechanisms.
Open Project in Cirkit Designer
This circuit is designed around an Arduino MKR WiFi 1010 microcontroller and includes a variety of sensors: a water level sensor, an MQ-2 gas sensor, a TEMT6000 ambient light sensor, a steam sensor, a DHT11 temperature and humidity sensor, and a rotary encoder. The sensors are powered by the 5V output from the Arduino and their ground pins are connected to the Arduino's ground. The signal outputs from the sensors are connected to various analog and digital input pins on the Arduino, enabling it to monitor environmental conditions such as gas presence, light levels, temperature, humidity, water level, and user input through the rotary encoder.
Open Project in Cirkit Designer
This circuit uses an Arduino MKR WiFi 1010 to monitor various environmental parameters including water level, gas concentration, light intensity, steam presence, and temperature/humidity. The data from these sensors is read and processed by the Arduino, which also interfaces with a rotary encoder for user input.
Open Project in Cirkit Designer
This circuit is designed to interface with Blynk, a platform for controlling Arduino over the internet, and display data on an LCD screen. It includes a MakerEDU Shield connected to two MKE-M01 LED Modules and two MKE-M07 LCD1602 I2C displays for user interaction. The BlynkGate modules are likely used for communication with the Blynk service, and the MTiny Programmer is for programming the microcontrollers. The embedded code suggests that the circuit can receive input via Blynk and display values on the LCDs while also controlling the LEDs.
Open Project in Cirkit DesignerThe following table outlines the key technical specifications of the Arduino MKR ENV Shield rev2:
| Specification | Details |
|---|---|
| Operating Voltage | 3.3V (supplied by the MKR board) |
| Sensors Included | Temperature, Humidity, Barometric Pressure, Light Intensity, Air Quality |
| Communication Interface | I2C |
| Operating Temperature Range | -40°C to 85°C |
| Dimensions | 61.5mm x 25mm |
The MKR ENV Shield rev2 connects directly to the MKR series boards via the standard MKR pin headers. Below is a description of the key pins used by the shield:
| Pin | Function | Description |
|---|---|---|
| SDA | I2C Data Line | Used for communication with the onboard sensors. |
| SCL | I2C Clock Line | Provides the clock signal for I2C communication. |
| 3.3V | Power Supply | Supplies power to the shield from the MKR board. |
| GND | Ground | Common ground connection. |
Arduino_MKRENV library, which provides functions to interact with the shield's sensors.Below is an example code snippet to read temperature, humidity, and pressure data from the MKR ENV Shield rev2:
#include <Arduino_MKRENV.h> // Include the library for the MKR ENV Shield
void setup() {
Serial.begin(9600); // Initialize serial communication at 9600 baud
while (!Serial); // Wait for the serial monitor to open
if (!ENV.begin()) { // Initialize the ENV Shield
Serial.println("Failed to initialize MKR ENV Shield!");
while (1); // Halt execution if initialization fails
}
Serial.println("MKR ENV Shield initialized successfully.");
}
void loop() {
// Read temperature, humidity, and pressure from the shield
float temperature = ENV.readTemperature(); // Temperature in °C
float humidity = ENV.readHumidity(); // Relative humidity in %
float pressure = ENV.readPressure(); // Pressure in hPa
// Print the sensor readings to the serial monitor
Serial.print("Temperature: ");
Serial.print(temperature);
Serial.println(" °C");
Serial.print("Humidity: ");
Serial.print(humidity);
Serial.println(" %");
Serial.print("Pressure: ");
Serial.print(pressure);
Serial.println(" hPa");
delay(1000); // Wait for 1 second before the next reading
}
Shield Not Detected:
Arduino_MKRENV library is installed.Incorrect Sensor Readings:
I2C Communication Errors:
Arduino_MKRENV library.By following this documentation, you can effectively integrate the Arduino MKR ENV Shield rev2 into your projects and take full advantage of its environmental sensing capabilities.