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Use environment variables for movehub address #12

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e1c89fc
Movehub to env variables
Dec 2, 2020
98604f2
rename var
gbshahaq Dec 2, 2020
27f6237
Set env var for movehub on all examples
gbshahaq Dec 2, 2020
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14 changes: 14 additions & 0 deletions README.md
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Expand Up @@ -44,6 +44,20 @@ And, of course, a BLE controller is also required. On linux systems, any Bluetoo
required (it also works on linux, by the way).


# GBSHAHAQ edit:
Hardcoded Hub addresses have been replaced in the examples with a fetch of environment
variable for the Boost hub.
I found the address of mine from my Raspberry Pi (Buster) using
sudo hcitool lescan
Useful BLE resource: https://www.instructables.com/Control-Bluetooth-LE-Devices-From-A-Raspberry-Pi
Then export this as an environment variable called "MYMOVEHUB"

Linux: export MYMOVEHUB="[insert MAC address]"
To persist it, add it your shell profile - for bash, add this line to the ~/.bashrc file.

Windows: set (or setx for persistence)
set MYMOVEHUB "[insert MAC address]"

## Supported environments ##

As I only have linux systems, most tests are done on my Ubuntu laptop (17.04, x64) and, of course, on
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4 changes: 3 additions & 1 deletion examples/color_controlled_car.py
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Expand Up @@ -11,7 +11,9 @@

from time import sleep

MY_MOVEHUB_ADD = '00:16:53:A4:CD:7E'
import os

MY_MOVEHUB_ADD = os.environ.get('MYMOVEHUB')
MY_BTCTRLR_HCI = 'hci0'

mymovehub = MoveHub(MY_MOVEHUB_ADD, 'BlueZ', MY_BTCTRLR_HCI)
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4 changes: 3 additions & 1 deletion examples/demo_button_read.py
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Expand Up @@ -5,7 +5,9 @@

from time import sleep

MY_MOVEHUB_ADD = '00:16:53:A4:CD:7E'
import os

MY_MOVEHUB_ADD = os.environ.get('MYMOVEHUB')
MY_BTCTRLR_HCI = 'hci0'

mymovehub = MoveHub(MY_MOVEHUB_ADD, 'BlueZ', MY_BTCTRLR_HCI)
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4 changes: 3 additions & 1 deletion examples/demo_color_speak.py
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Expand Up @@ -6,7 +6,9 @@
from espeak import espeak # apt install python3-espeak
from time import sleep

MY_MOVEHUB_ADD = '00:16:53:A4:CD:7E'
import os

MY_MOVEHUB_ADD = os.environ.get('MYMOVEHUB')
MY_BTCTRLR_HCI = 'hci0'

espeak.set_voice = 'en'
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4 changes: 3 additions & 1 deletion examples/demo_colordist.py
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Expand Up @@ -5,7 +5,9 @@

from time import sleep

MY_MOVEHUB_ADD = '00:16:53:A4:CD:7E'
import os

MY_MOVEHUB_ADD = os.environ.get('MYMOVEHUB')
MY_BTCTRLR_HCI = 'hci0'

mymovehub = MoveHub(MY_MOVEHUB_ADD, 'BlueZ', MY_BTCTRLR_HCI)
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4 changes: 3 additions & 1 deletion examples/demo_encoder_and_color.py
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Expand Up @@ -5,7 +5,9 @@

from time import sleep

MY_MOVEHUB_ADD = '00:16:53:A4:CD:7E'
import os

MY_MOVEHUB_ADD = os.environ.get('MYMOVEHUB')
MY_BTCTRLR_HCI = 'hci0'

mymovehub = MoveHub(MY_MOVEHUB_ADD, 'BlueZ', MY_BTCTRLR_HCI)
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4 changes: 3 additions & 1 deletion examples/demo_encoder_read.py
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Expand Up @@ -5,7 +5,9 @@

from time import sleep

MY_MOVEHUB_ADD = '00:16:53:A4:CD:7E'
import os

MY_MOVEHUB_ADD = os.environ.get('MYMOVEHUB')
MY_BTCTRLR_HCI = 'hci0'

mymovehub = MoveHub(MY_MOVEHUB_ADD, 'BlueZ', MY_BTCTRLR_HCI)
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4 changes: 3 additions & 1 deletion examples/demo_encoder_read_x3.py
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Expand Up @@ -5,7 +5,9 @@

from time import sleep

MY_MOVEHUB_ADD = '00:16:53:A4:CD:7E'
import os

MY_MOVEHUB_ADD = os.environ.get('MYMOVEHUB')
MY_BTCTRLR_HCI = 'hci0'

mymovehub = MoveHub(MY_MOVEHUB_ADD, 'BlueZ', MY_BTCTRLR_HCI)
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4 changes: 3 additions & 1 deletion examples/demo_gamepad.py
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Expand Up @@ -38,7 +38,9 @@
import evdev
import threading

MY_MOVEHUB_ADD = '00:16:53:A4:CD:7E'
import os

MY_MOVEHUB_ADD = os.environ.get('MYMOVEHUB')
MY_BTCTRLR_HCI = 'hci0'

MY_GAMEPAD_NAME = 'Bluetooth Gamepad'
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5 changes: 3 additions & 2 deletions examples/demo_linefollower.py
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Expand Up @@ -5,14 +5,15 @@

from time import sleep

import os
#
# Line Follower
# - wheels on motor A and B
# - ColorDist sensor on port C
# Demo video: https://youtu.be/2QysaaYmy9Q
#

MY_MOVEHUB_ADD = '00:16:53:A4:CD:7E'
MY_MOVEHUB_ADD = os.environ.get('MYMOVEHUB')
MY_BTCTRLR_HCI = 'hci0'

delay = 0.0 # delay at the end of each cycle
Expand Down Expand Up @@ -53,4 +54,4 @@ def back():
pass

finally:
mymovehub.stop()
mymovehub.stop()
7 changes: 6 additions & 1 deletion examples/demo_motor.py
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Expand Up @@ -5,7 +5,12 @@

from time import sleep

MY_MOVEHUB_ADD = '00:16:53:A4:CD:7E'
import os

ENV_MOVEHUB = os.environ.get('MYMOVEHUB')

#MY_MOVEHUB_ADD = '00:16:53:AB:EB:25'
MY_MOVEHUB_ADD = ENV_MOVEHUB
MY_BTCTRLR_HCI = 'hci0'

mymovehub = MoveHub(MY_MOVEHUB_ADD, 'BlueZ', MY_BTCTRLR_HCI)
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4 changes: 3 additions & 1 deletion examples/demo_motor_wedo2.py
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Expand Up @@ -5,7 +5,9 @@

from time import sleep

MY_MOVEHUB_ADD = '00:16:53:A4:CD:7E'
import os

MY_MOVEHUB_ADD = os.environ.get('MYMOVEHUB')
MY_BTCTRLR_HCI = 'hci0'

mymovehub = MoveHub(MY_MOVEHUB_ADD, 'BlueZ', MY_BTCTRLR_HCI)
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8 changes: 5 additions & 3 deletions examples/demo_tilt_read.py
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Expand Up @@ -5,12 +5,14 @@

from time import sleep

MY_MOVEHUB_ADD = '00:16:53:A4:CD:7E'
import os

MY_MOVEHUB_ADD = os.environ.get('MYMOVEHUB')
MY_BTCTRLR_HCI = 'hci0'

#mymovehub = MoveHub(MY_MOVEHUB_ADD, 'BlueZ', MY_BTCTRLR_HCI)
mymovehub = MoveHub(MY_MOVEHUB_ADD, 'BlueZ', MY_BTCTRLR_HCI)
#mymovehub = MoveHub(MY_MOVEHUB_ADD, 'BlueGiga', '')
mymovehub = MoveHub(MY_MOVEHUB_ADD, 'Auto', MY_BTCTRLR_HCI)
#mymovehub = MoveHub(MY_MOVEHUB_ADD, 'Auto', MY_BTCTRLR_HCI)

try:
mymovehub.start()
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3 changes: 2 additions & 1 deletion examples/demo_vernie.py
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Expand Up @@ -41,8 +41,9 @@
from time import sleep
import evdev
import threading
import os

MY_MOVEHUB_ADD = '00:16:53:A4:CD:7E'
MY_MOVEHUB_ADD = os.environ.get('MYMOVEHUB')
MY_BTCTRLR_HCI = 'hci0'

MY_GAMEPAD_NAME = 'Bluetooth Gamepad'
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4 changes: 3 additions & 1 deletion examples/demo_wedo2distance.py
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Expand Up @@ -5,7 +5,9 @@

from time import sleep

MY_MOVEHUB_ADD = '00:16:53:A4:CD:7E'
import os

MY_MOVEHUB_ADD = os.environ.get('MYMOVEHUB')
MY_BTCTRLR_HCI = 'hci0'

mymovehub = MoveHub(MY_MOVEHUB_ADD, 'BlueZ', MY_BTCTRLR_HCI)
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4 changes: 3 additions & 1 deletion examples/demo_wedo2tilt_angle.py
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Expand Up @@ -5,7 +5,9 @@

from time import sleep

MY_MOVEHUB_ADD = '00:16:53:A4:CD:7E'
import os

MY_MOVEHUB_ADD = os.environ.get('MYMOVEHUB')
MY_BTCTRLR_HCI = 'hci0'

mymovehub = MoveHub(MY_MOVEHUB_ADD, 'BlueZ', MY_BTCTRLR_HCI)
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4 changes: 3 additions & 1 deletion examples/demo_wedo2tilt_tilt.py
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Expand Up @@ -5,7 +5,9 @@

from time import sleep

MY_MOVEHUB_ADD = '00:16:53:A4:CD:7E'
import os

MY_MOVEHUB_ADD = os.environ.get('MYMOVEHUB')
MY_BTCTRLR_HCI = 'hci0'

mymovehub = MoveHub(MY_MOVEHUB_ADD, 'BlueZ', MY_BTCTRLR_HCI)
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4 changes: 3 additions & 1 deletion examples/ev3-tilt-controller.py
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Expand Up @@ -10,7 +10,9 @@

from time import sleep

MY_MOVEHUB_ADD = '00:16:53:A4:CD:7E'
import os

MY_MOVEHUB_ADD = os.environ.get('MYMOVEHUB')
MY_BTCTRLR_HCI = 'hci1'

m1 = ev3.LargeMotor('outA')
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4 changes: 3 additions & 1 deletion examples/test_connection.py
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Expand Up @@ -5,7 +5,9 @@

from time import sleep

MY_MOVEHUB_ADD = '00:16:53:A4:CD:7E'
import os

MY_MOVEHUB_ADD = os.environ.get('MYMOVEHUB')
MY_BTCTRLR_HCI = 'hci0'

mymovehub = MoveHub(MY_MOVEHUB_ADD, 'BlueZ', MY_BTCTRLR_HCI)
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