Pololu Maestro Servo Controller
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Products
- Pololu Micro Maestro 6-Channel USB Servo Controller
- Pololu Mini Maestro 12-Channel USB Servo Controller
User guide
Dev Guide
Android
Node.js
https://www.npmjs.org/package/pololu-maestro
C
http://www.pololu.com/docs/0J40/5.h.1
gcc setmaestro.c -o setmaestro ./setmaestro /dev/tty.usbmodem00072841 0 6000
Bash
http://www.pololu.com/product/1350
> system_profiler SPUSBDataType
...
Pololu Micro Maestro 6-Servo Controller:
Product ID: 0x0089
Vendor ID: 0x1ffb
Version: 1.02
Serial Number: 00072848
Speed: Up to 12 Mb/sec
Manufacturer: Pololu Corporation
Location ID: 0x14300000 / 1
Current Available (mA): 500
Current Required (mA): 100
...
http://www.pololu.com/docs/0J40/5.h.4
#!/bin/bash
# Sends a Set Target command to a Pololu Maestro servo controller
# via its virtual serial port.
# Usage: maestro-set-target.sh DEVICE CHANNEL TARGET
# Linux example: bash maestro-set-target.sh /dev/ttyACM0 0 6000
# Mac OS X example: bash maestro-set-target.sh /dev/cu.usbmodem00234567 0 6000
# Windows example: bash maestro-set-target.sh '\\.\USBSER000' 0 6000
# Windows example: bash maestro-set-target.sh '\\.\COM6' 0 6000
# CHANNEL is the channel number
# TARGET is the target in units of quarter microseconds.
# The Maestro must be configured to be in USB Dual Port mode.
DEVICE=$1
CHANNEL=$2
TARGET=$3
byte() {
printf "\\x$(printf "%x" $1)"
}
{
byte 0x84
byte $CHANNEL
byte $((TARGET & 0x7F))
byte $((TARGET >> 7 & 0x7F))
} > $DEVICE
Robot Operating System
- http://www.youtube.com/watch?v=NcO6oT-91F8
- http://spinlock.blogspot.fr/2012/02/simple-servo-actuation-in-ros.html
Python
#!/usr/bin/python
import math, time, serial
def get_command(channel, target):
target = target * 4
serialBytes = chr(0x84)+chr(channel)+chr(target & 0x7F)+chr((target >> 7) & 0x7F)
return serialBytes
ser = serial.Serial('/dev/ttyACM0')
ser.write(chr(0xAA))
ser.flush()
i=0.0
while(i<2*math.pi):
i = i+0.01
print math.sin(i)
ser.write(get_command(1,int((math.sin(i)*300)+1500)))
ser.write(get_command(0,int((math.sin(i)*300)+1500)))
time.sleep(0.002)
ser.write(get_command(1,0))
ser.write(get_command(0,0))
ser.close()