So how can we control a servo motor with the ESP8266 NodeMCU LUA Development Board?<\/p>\n
This post discusses how we can control the SG90 servo motor<\/a>, with the ESP8266 NodeMCU LUA Development Board.<\/p>\n First, let us look at how we can connect the SG90 servo motor to the ESP8266 NodeMCU LUA Development Board.<\/p>\n As shown above, we first seat the ESP8266 development board onto a breadboard<\/a>. Next to the development board, we use three male to male jumper wires<\/a>:<\/p>\n Once we had connected the wires onto the breadboard, we then connect them to the SG90 servo motor in the following manner:<\/p>\n After we have connected the hardware in this way, we will be able to control the servo motor from the board.<\/p>\n At this point in time, we are ready to get our mini program into the ESP8266 board to control the servo motor. In order to do so, we need to use a tool to write our program into the flash memory of the development board.<\/p>\n Since it is easy to write code and flash programs with Arduino IDE<\/a>, we can use it to serve our purpose.<\/p>\n In order to use Arduino IDE for this guide, be sure to enable ESP8266 development on Arduino IDE<\/a> before continuing.<\/p>\n In order to understand how to control our servo motor, let's take a look at the following Arduino Sketch:<\/p>\n So what will the above codes do to our servo motor?<\/p>\n First, we included the Servo library<\/a> into the sketch.<\/p>\n After we had done so, we create a Within the Within the When you are looking to operate remote-controlled or radio-controlled toy cars, robots and airplanes, you will need to use servo motors.<\/p>\n Since the ESP8266 NodeMCU LUA Development Board<\/a> is cost efficient for IOT<\/a> solutions, it can be used for controlling servo motors.<\/p>\n So how can we control a servo motor with the ESP8266 NodeMCU LUA Development Board?<\/p>\nHow to connect the SG90 servo motor to the ESP8266 NodeMCU LUA Development Board<\/h2>\n
![\"ESP8266](\"https:\/\/www.techcoil.com\/blog\/wp-content\/uploads\/ESP8266-on-breadboard-with-wires-connected-to-D1-3v3-and-Gnd-ports.jpg\")
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![\"Tower](\"https:\/\/www.techcoil.com\/blog\/wp-content\/uploads\/Tower-Pro-SG90-servo-motor-connected-to-wires-from-breadboard.jpg\")
<\/p>\nEnabling ESP8266 Development on Arduino IDE<\/h2>\n
Writing the Arduino Sketch to get ESP8266 NodeMCU LUA Development Board turn the servo motor<\/h2>\n
\r\n#include <Servo.h>\r\n\r\nServo servo;\r\n\r\nvoid setup() {\r\n servo.attach(D1);\r\n servo.write(0);\r\n delay(2000);\r\n}\r\n\r\nvoid loop() {\r\n servo.write(0);\r\n delay(3000);\r\n servo.write(90);\r\n delay(3000);\r\n servo.write(180);\r\n delay(3000);\r\n}\r\n<\/pre>\nServo<\/code> object from the library. When we had created a Servo<\/code> object, we will be able to work on it inside the setup<\/code><\/a> and loop<\/code> functions. The setup()<\/code> function will be run once and the loop()<\/code><\/a> function will be run until power is cut off from the board.<\/p>\nsetup<\/code> function, we first attach the servo to D1, a predefined constant for the D1 port, via the Servo.attach()<\/code><\/a> function. By doing so, we will be able to control the servo which is attached to D1 port of the board. We then turn the servo motor to 0 degrees via Servo.write()<\/code><\/a> and make the program wait for 2 seconds.<\/p>\nloop<\/code> function, we repeatedly turn the servo motor to 0, 90 and 180 degrees. Before making each turn, we make the program wait for 3 seconds.<\/p>\n![\"How](\"https:\/\/www.techcoil.com\/blog\/wp-content\/uploads\/How-to-control-a-SG90-servo-motor-with-the-ESP8266-NodeMCU-LUA-Development-Board.jpg\")
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