PROJECT 10
SERIAL COMMUNICATION CONTROL RC SERVO
Wondering how to control the RC servo motor through your PC/laptop? In this project, we are going to explore on how to control two RC servo’s position through the serial monitor of Arduino programmer. By sending the position from 0 to 180 will determine the servo position.
———————————————————————————————————————————————————COMPONENT NEEDED
———————————————————————————————————————————————————-
———————————————————————————————————————————————————-
CONNECTION
———————————————————————————————————————————————————-
In this project, there are 2 RC servo motor signal wire (YELLOW) connected to Arduino Duemilanove
digital pin-2 and pin-3. RED wire are connected to
+5V while
BLACK wire connected to
ground(GND).
———————————————————————————————————————————————————-
CODE OVERVIEW
———————————————————————————————————————————————————-
int value;
Assign the value as integer to store the value of servo position from 0 to 180.
unsigned int old_value;
Store the last value of the servo position.
servo1.write(90);
Initialize and move the servo1 to 90 degree.
old_value = 90;
Set and store the position of servo to old_value.
If (value > 180) value = 180;
Check if the value is larger than 180. if yes then set it to maximum 180.
else if (value < 0) value = 0;
Check if the value is less than 0. if yes then set it to minimum 0.
if(value < old_value)
Check if the current value of servo position is less then the old_value or last value.
old_value = value;
Assign the current value to old_value as the memory for the microcontroller to determine servo position.
———————————————————————————————————————————————————-
ATTACHMENT
1.
P10 User Manual.pdf
2.
Project_10_code.zip
int value;
Assign the value as integer to store the value of servo position from 0 to 180.
unsigned int old_value;
Store the last value of the servo position.
servo1.write(90);
Initialize and move the servo1 to 90 degree.
old_value = 90;
Set and store the position of servo to old_value.
If (value > 180) value = 180;
Check if the value is larger than 180. if yes then set it to maximum 180.
else if (value < 0) value = 0;
Check if the value is less than 0. if yes then set it to minimum 0.
if(value < old_value)
Check if the current value of servo position is less then the old_value or last value.
old_value = value;
Assign the current value to old_value as the memory for the microcontroller to determine servo position.
