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Python Library for Keigan Motors (v2)

Project description

Introduction

You can control your Keigan Motor through USB Serial and BLE.

https://www.keigan-motor.com/

This library has been updated from v1 to v2.

The method names are not comatible, but we added many important features.

We strongrly recommend this v2 from now on.

Just in case you can get v1 from: https://github.com/keigan-motor/pykeigan_motor/tree/v1

At present we support Linux only for BLE, because the BLE functions of this library depends on bluepy(Python interface to Bluetooth LE on Linux by Mr. Ian Harvey):

https://github.com/IanHarvey/bluepy

The USB serial functions should work on Windows and Mac too. Please use setup-usb.py to install.

Requirements

  • python >= 3.5 or 2.6

  • pyserial >= 3.4

  • bluepy >= 1.1.4

Installation

For Linux:

sudo apt install git
git clone -b v2 https://github.com/keigan-motor/pykeigan_motor
cd pykeigan_motor
python setup.py install (or python setup-usb.py install )

USB Serial

To connect your Keigan Motor through USB serial, you need to know the mounted path. You can get the unique path of your Keigan Motor by:

ls /dev/serial/by-id/

Your Keigan Motor’s ID should be like ‘usb-FTDI_FT230X_Basic_UART_DM00XXXX-if00-port0’. To use your Keigan Motor through USB serial, you need to add R/W permission to it.:

sudo chmod 666 /dev/serial/by-id/usb-FTDI_FT230X_Basic_UART_DM00XXXX-if00-port0
  • Simplest Sample Code

    Rotate counter-clockwise with 1.0 rad/sec.

from pykeigan import usbcontroller
dev=usbcontroller.USBContoller('/dev/serial/by-id/usb-FTDI_FT230X_Basic_UART_DM00xxxx-if00-port0')
dev.enable_action()
dev.set_speed(1.0)
dev.run_forward()
  • examples/usb-simple-connection.py

    Basic connection to the Motor.

  • examples/usb-rotate-the-motor.py

    Rotate the Motor continuously and stop.

  • examples/usb-position-control.py

    Rotate the Motor to the relative and absolute position.

  • examples/usb-get-motor-Informations.py

    Acquire the speed, position, torque and IMU values of the Motor.

  • examples/usb-actuator.py

    Let the Motor go and return for the specific distance.

  • examples/usb-torque-control.py

    Demonstration for a torque control. Increase the torque as you rotate the Motor by hand.

  • examples/usb-teaching-control.py

    Let the Motor record and playback your motion.

BLE (for Linux Only)

You need to know the MAC address of you Keigan Motor for BLE connection.

For example, you can use the following simple script. Please run with sudo.

KM1Scan.py

from bluepy.btle import Scanner
scanner=Scanner()
devices=scanner.scan(5.0)
for dev in devices:
    for (adtype, desc, value) in dev.getScanData():
        if desc=="Complete Local Name" and "KM-1" in value:
            print(value,":",dev.addr)
  • Simplest Sample Code

    Rotate counter-clockwise with 1.0 rad/sec.

from pykeigan import blecontroller
dev=blecontroller.BLEController("xx:xx:xx:xx:xx")
dev.enable_action()
dev.set_speed(1.0)
dev.run_forward()
  • examples/ble-simple-connection.py

    Basic connection to the Motor.

  • examples/ble-scanner-connection.py

    Connect to the Motor by BLE scanning.

  • examples/ble-rotate-the-motor.py

    Rotate the Motor continuously and stop.

  • examples/ble-get-motor-Informations.py

    Acquire the speed, position, torque and IMU values of the Motor.

Release Notes

Release 2.1.0

  • Added python 2 support

Release 2.0.1

  • Added APIs for reading and writing teaching data

  • Added read_motion and write_motion_position

Release 2.0.0

  • Method Names Renewal

  • Added Debug Mode

  • Added Data Acquisition on USB serial

  • Added Windows and Mac Support for USB serial

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