I have servo (TowerPro sg90) connected to 32 servo controller (this one) through UART interface (RX-TX, GND-GND). Seller provide documentation how to connect and control my servos, but it isn't work.
Servo work if I connect it indirectly to Arduino. Controller indicate that it is working too (photo below - red led).
I already try different servos. Also try use provided software to control servos from pc through Mac/PC. But it's interface is unreadable for me. I tried different options but servos not responding.
Sketch code below (from sellers examples):
void setup() {
Serial.begin(9600);
}
void loop() {
Serial.print("#3P500T2000\r\n");
delay(2000);
Serial.print("#3P1500T2000\r\n");
delay(3000);
Serial.print("#3P2500T2000\r\n");
delay(2000);
Serial.print("#3P1500T2000\r\n");
delay(2000);
}
Photo of my connections:
Sorry if it post duplicate some, but I cannot google this problem.
So I answer my own question because it's remain unanswered and confuse people.
SO isn't a place for such questions. I got an answer here.