422.ESP8266 NodeMCU Integrated with MPU-6050 Accelerometer, Gyroscope, and Temperature Sensor (Arduino) Through the completion of this project, you will acquire the knowledge necessary to interface the ESP8266 NodeMCU with the MPU-6050 accelerometer and gyroscope module. The MPU-6050 Inertial Measurement

Unit (IMU) is a sensor that contains a 3-axis accelerometer as well as a 3- axis gyroscope. Both the accelerometer and the gyroscope measure the rotational velocity of the object. The accelerometer measures the acceleration due to gravity. In addition to that, this module is also capable of measuring temperature. This sensor works wonderfully for determining the orientation of an object that is in motion. The MPU-6050 is a module that contains a three-axis accelerometer as well as a three-axis gyroscope. The rotational velocity (in radians per second) along the X, Y, and Z axes is what the gyroscope measures. This can be thought of as the change in angular position over time (roll, pitch and yaw). Because of this, we are able to figure out the orientation of an object. Acceleration, or the rate at which the object's velocity is changing, is what the accelerometer measures. It is able to detect dynamic forces such as vibrations or movement in addition to static forces such as gravity (9.8m/s2). Acceleration along the X, Y, and Z axes can be measured with the MPU- 6050. In a perfect world, the acceleration along the Z axis of a static object

should be the same as the gravitational force, while the acceleration along the X and Y axes should be zero. Calculating the roll and pitch angles using trigonometry is possible if the values from the accelerometer are used. The yaw, on the other hand, cannot be determined by calculation. Installing Libraries Readings can be obtained from the sensor in a variety of different ways. We'll be utilizing the Adafruit MPU6050 library throughout this tutorial. In addition, the Adafruit Unified Sensor library and the Adafruit Bus IO Library need to be installed on your computer before you can use this library. Launch the Arduino Integrated Development Environment (IDE), then navigate to Sketch > Include Library > Manage Libraries . It ought to start up the Library Manager. Install the library by entering "adafruit mpu6050" into the search box on your computer. The next step is to conduct a search for "Adafruit Unified Sensor." To locate the library and to install it, scroll all the way to the bottom. Finally, look for "Adafruit Bus IO" in the search engine, and then install it. Readings Obtained From the MPU-6050 Sensors, Including Accelerometer, Gyroscope, and Temperature Readings of acceleration (x, y, and z), angular velocity (x, y, and z), and temperature will be discussed in this section so that you can learn how to retrieve them from the MPU-6050 sensor.

Readings from the Accelerometer, Gyroscope, and Temperature Sensors on the MPU-6050 Can Be Obtained Using the Following

Transfer the code to the ESP8266 board you have. Select the ESP8266 board you are using by going to Tools > Board and making your selection there. To determine which port your board is connected to, navigate to Tools > Port and make your selection there. After that, click the button labelled "Upload."

Launch the Serial Monitor with the baud rate set to 115200, and then press the RST button located on the board. The readings obtained from the sensor will be displayed. You can see the values change in response to the different orientations of the sensor. Calibration of the Sensors In a perfect world, the values of the gyroscope would be zero along all axes when the sensor was in a stationary position. However, this is not the case in our situation. The following gyroscope values are obtained when the sensor

x: 0.06 rad/s y: -0.02 rad/s z: 0.00 rad/s In order to obtain more accurate readings from practical applications, you will need to take into account the error and make the appropriate adjustments to the values in the code.

The same thing occurs with the values of the acceleration. On the other hand, the acceleration along the x and y axes should be closer to zero and the acceleration along the z axis should be closer to the gravitational force (9.8 m/s2). In our situation, the following is an approximation of the values that

x: 0.71 m/s2 y: 0.28 m/s2 z: 9.43 m/s2 Showing readings from the MPU-6050 on the OLED display An example is provided by the Adafruit MPU6050 library that shows the readings from the MPU-6050 gyroscope and accelerometer on an OLED display.

MPU-6050 Accelerometer Gyroscope ESP8266 (read Best ESP8266 development boards) Jumper wires for the 0.96-inch I2C OLED Display SSD1306 on the Breadboard Jumper wires ESP8266 NodeMCU Schematic Diagram, Including MPU-6050 and OLED Display

Connect each of the components using the wiring shown in the schematic diagram below. We are able to connect the OLED display and the MPU- 6050 sensors to the same I2C bus because these two types of components use different I2C addresses (same pins on the ESP8266). Display the MPU-6050 sensor readings on the OLED display with this code. In order to follow along with this example, you will need to ensure that the Adafruit SSD1306 library is properly installed. The Arduino Library Manager allows for the installation of this library on your device. You can get the SSD1306 library from Adafruit by going to Sketch > Library > Manage Libraries , searching for "SSD1306," and then installing it.