I'm trying to send 5 ints in the range of 0-180 from Python to the Arduino Uno device using pySerial (py3K). I have managed to send 1 int by using python's struct lib (not sure if it's the best or fastest way but it works). However I'm failing to send more than 1 and every example online seems to stop at 1.

Here's the simplified code. The task is to send servo0-servo4 to the arduino and apply those values to the corresponding servos.

Python Code

import serial import struct import time bge.arduino = serial.Serial('/dev/ttyACM0', 9600) # let it initialize time.sleep(2) # the 5 ints to send servo0 = 0 servo1 = 45 servo2 = 90 servo3 = 135 servo4 = 180 # send the first int in binary format bge.arduino.write(struct.pack('>B', servo0)) 

Arduino code

#include <Servo.h> Servo servo0; Servo servo1; Servo servo2; Servo servo3; Servo servo4; void setup(){ Serial.begin(9600); servo0.attach(3); servo1.attach(5); servo2.attach(6); servo3.attach(9); servo4.attach(10); } void loop(){ if(Serial.available()){ int message = Serial.read(); // let's be safe if (message > 179){ message = 179; } else if (message < 0){ message = 0; } // control the servos servo0.write(message); } }