I'm trying to send 5 ints in the range of 0-180 from Blender to the Arduino Uno device using pySerial (py3K). I have managed to send 1 int (not sure if it's the best 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 complete code. The task is to send servo0-servo4 to the arduino and apply those values to the corresponding servos. In line 64 I send servo0 from Blender and in line 94 I receive it in the Arduino using Serial.parseInt() (Again I'm just using this cause it works but I'll welcome any better/faster way).

Runs once at startup in Blender

import sys sys.path.append("/usr/lib/python3.3/site-packages/") import serial import bge bge.scene = bge.logic.getCurrentScene() bge.arduino = serial.Serial('/dev/ttyACM0', 9600, timeout=.01) bge.joySticks = bge.logic.joysticks 

Runs in a loop in Blender

import bge import math xbox = bge.joySticks[0] xboxAxis = xbox.axisValues # -1<>1 xboxLeftStickLR = xboxAxis[0] xboxLeftStickUD = xboxAxis[1] xboxRightStickLR = xboxAxis[3] xboxRightStickUD = xboxAxis[4] xboxLeftTrigger = xboxAxis[2] xboxRightTrigger = xboxAxis[5] # 0<>180 servo0 = int((xboxLeftStickLR + 1) * 90) servo1 = int((xboxLeftStickUD + 1) * 90) servo2 = int((xboxRightStickLR + 1) * 90) servo3 = int((xboxRightStickUD + 1) * 90) servo4 = int(((-xboxLeftTrigger + 1) * 45) + ((xboxRightTrigger + 1) * 45)) # on screen visualizers needle0 = bge.scene.objects['needle0'] needle1 = bge.scene.objects['needle1'] needle2 = bge.scene.objects['needle2'] needle3 = bge.scene.objects['needle3'] needle4 = bge.scene.objects['needle4'] needle_xyz = needle0.localOrientation.to_euler() needle_xyz[1] = math.radians(servo0-90) needle0.localOrientation = needle_xyz.to_matrix() needle_xyz = needle1.localOrientation.to_euler() needle_xyz[1] = math.radians(-servo1+90) needle1.localOrientation = needle_xyz.to_matrix() needle_xyz = needle2.localOrientation.to_euler() needle_xyz[1] = math.radians(servo2-90) needle2.localOrientation = needle_xyz.to_matrix() needle_xyz = needle3.localOrientation.to_euler() needle_xyz[1] = math.radians(-servo3+90) needle3.localOrientation = needle_xyz.to_matrix() needle_xyz = needle4.localOrientation.to_euler() needle_xyz[1] = math.radians(servo4-90) needle4.localOrientation = needle_xyz.to_matrix() # write to arduino bge.arduino.write(str(servo0).encode()) print (bge.arduino.readline()) 

The Arduino code

#include <Servo.h> Servo servo0; Servo servo1; Servo servo2; Servo servo3; Servo servo4; void setup(){ Serial.begin(9600); Serial.setTimeout(10); pinMode(12, OUTPUT); servo0.attach(3); servo1.attach(5); servo2.attach(6); servo3.attach(9); servo4.attach(10); } void loop(){ if(Serial.available()){ int message = Serial.parseInt(); // let's be safe if (message > 179){ message = 179; } else if (message < 0){ message = 0; } // dp something with the LED if(message == 0 || message == 179){ digitalWrite(12, HIGH); } else{ digitalWrite(12, LOW); } // control the servos servo0.write(message); Serial.println(message); } }