HOME COMMUNITY FORUM WIKI BLOG EDUCATION
Bluno General Arduino

Control Motors and Servos on Romeo BLE mini V2

userHead Account cancelled 2019-09-28 15:59:14 2839 Views1 Replies
Hi,

I am trying to control 2 motors and 4 servos with the Romeo BLE mini V2.0. I used the sample code for Standard PWM DC control from the Romeo wiki page (https://wiki.dfrobot.com/Romeo_BLE_mini ... KU_DFR0351) and the code for the wobbly penguin project (https://www.dfrobot.com/blog-694.html) for servo control.

Just combining the code works in principle, I can control the motors and servos, however, I also get interference, meaning that some of the servos move erratically when I control the motors.

Unfortunately, I do not really understand the pinMode and digitalWrite commands that are used in the two setup functions for these projects:

for the motor control:
Code: Select all
void setup(void)
{
  int i;
  for(i=4;i<=7;i++)
    pinMode(i, OUTPUT);
  Serial.begin(9600);      //Set Baud Rate
  Serial.println("Run keyboard control");
}
for the servo control:
Code: Select all
void setup() {
   pinMode(3,OUTPUT);
   pinMode(5,OUTPUT);
   myservo.attach(2);
 
   digitalWrite(3,LOW);
   digitalWrite(5,HIGH);
}
I basically just combined both like this:
Code: Select all
void setup() {
  // RomeoBLE board initialization
  int i;
  for(i=4;i<=7;i++)
    pinMode(i, OUTPUT);
  pinMode(3,OUTPUT);
  pinMode(5,OUTPUT);
  myservo1.attach(2);
  myservo2.attach(3);
  myservo3.attach(8);
  myservo4.attach(9);
 
  digitalWrite(3,LOW);
  digitalWrite(5,HIGH);
  Serial.begin(115200);
}
Could anybody give me a hint what might be going on, or refer me to more detailed information about the setup functions used to control motors and servos using the Romeo BLE mini?
basehead
Register Login