Arduino Mini Robot Programming.

The robot has been in the garage for a few years. Bits need refitting. You can buy the frame for £30 on EBay and the 4 motors cost about £28 total. The program is in the comments.

[@nxbid]

thats so cool!! i loved this video and sat through the entire thing, thanks for this and keep doing awesome stuff!

[@kevinmahardika447]

that's so cool dude! If I may know what components must be purchased to make the machine ?

[@damianbutterworth2434]

Hi mate, here is the frame and you need to get the 4 MG995 servo`s separately. I might be using the wrong one on the jaws. This sellers says they are all the same. Perhaps this is why I struggled to get it to grip.
www.ebay.co.uk/itm/296339248801?itmmeta=01HZBXVZRZA91TWZEB8SM7R5PS&hash=item44ff3216a1:g:biwAAOSwDJRmS~x0&itmprp=enc%3AAQAJAAAA4Ek0fQ0KtRA3kiijkjtUXpgo1O2kNXxTcGfypU59cjDmlxmUTYF114GAk5yR8FqZFXFTKVtJvxvIGuHsMf3zr%2B0XBbu4OiPVRyfGlFnGRMDDHQ5SDLPo2PutoZg00C1XI%2FUhF%2BNRNcjgPJshiZ9YCYPLFLkoyv3nh7EKyy5wq6S3jM3nwmGDHi7LvmxmysY%2BkjPt1K811VI4SUdmw%2BfetcdHFjX5JGbU%2Bnx8vGa5UWubSUtplmTdkcjiG61fO1LAouwH4azz2uyF3neZaLnrnEIGuiKMxXr2wPd%2BsK0Htqjt%7Ctkp%3ABFBM3Pzv_fpj

[@damianbutterworth2434]

the servo`s I used are HJS3315D. The must be 180 degree servo`s. I`m struggling to find one on Ebay on it`s own without brackets. But if the EBay adverts says MG99J they should be the same.

[@damianbutterworth2434]

#include
int step=0;
int a=90;
int b=70;
int c=75;
int jaw=1;
int de=15; // ROBOT SPEED. LOWER IS FASTER.
int ang=0;
Servo sa;
Servo sb;
Servo sc;
Servo sd;
void setup() {
sa.attach(9);
sb.attach(10);
sc.attach(11);
sd.attach(12);
}
void loop() {
start:
if(step == 0){
step=step+1;
goto home;
}
if(step == 1){
step=step+1;
ang=20;
goto pick1;
}
if(step == 2){
step=step+1;
goto lift;
}
if(step == 3){
step=step+1;
ang=120;
goto drop;
}
if(step == 4){
step=step+1;
goto home;
}
if(step == 5){
step=step+1;
ang=40;
goto pick1;
}
if(step == 6){
step=step+1;
goto lift;
}
if(step == 7){
step=step+1;
ang=140;
goto drop;
}
if(step == 8){
step=step+1;
goto home;
}
if(step == 9){
step=step+1;
ang=60;
goto pick1;
}
if(step == 10){
step=step+1;
goto lift;
}
if(step == 11){
step=step+1;
ang=160;
goto drop;
}
if(step == 12){
step=step+1;
goto home;
}
delay(10000); step=0;

goto start;
pick1:
if(jaw == 1){
sd.write(120); // OPEN JAWS
delay(1000);
sd.write(95); // TURN JAWS OFF
jaw=0;
}
if(a = ang+1){a=a-1;}
if(a != ang){
sa.write(a);
delay(de);
}
if(a == ang){
if(b = 46){b=b-1;}
if(c = 76){c=c-1;}
sb.write(b);
sc.write(c);
delay(de);
if(b == 45 && c == 75){
sd.write(80);
delay(1000);
jaw=1;
goto start;
}
}
goto pick1;
drop:
if(a = ang+1){a=a-1;}
if(a != ang){
sa.write(a);
delay(de);
}
if(a == ang){
if(b = 46){b=b-1;}
if(c = 76){c=c-1;}
sb.write(b);
sc.write(c);
delay(de);
if(b == 45 && c == 75){
sd.write(120);
delay(1000);
jaw=0;
goto start;
}
}
goto drop;
home:
if(jaw == 1){
sd.write(120); // OPEN JAWS
delay(1000);
sd.write(95); // TURN JAWS OFF
jaw=0;
}
if(b = 91){b=b-1;}
if(c = 91){c=c-1;}
sb.write(b);
sc.write(c);
delay(de);
if(b == 90 && c == 90){
goto start;
}
goto home;
lift:
sd.write(70);
if(b = 91){b=b-1;}
if(c = 91){c=c-1;}
sb.write(b);
sc.write(c);
delay(de);
if(b == 90 && c == 90){
goto start;
}
goto lift;
}