Using

pyControl

This lever works with the pyControl behavior framework. Specifically, this means that the RJ45 pinout is compatible with pyControl. Using an ethernet cable, you can connect the lever to an original breakout board or a D-series breakout board.

Example task

Info

For the example to work, lever_device.py must be downloaded and placed in your devices folder. Then after connecting to you pyboard, use the "config" button to "Load framework". This will transfer the device files, including _lever.py, from your computer onto the pyboard microcontroller.

Below is an example task you can run to test the lever. The task assumes a lever is connected to port 1 of your breakout board.

When the task starts, the lever will extend. Pressing the extended lever 3 times will cause the lever to retract. After 1 second, the lever will extend again. The number of presses required and the duration of the retraction are variables that can be adjusted.

from pyControl.utility import *
from devices import *
import pyControl.hardware as _h

## uncomment one of the following two lines depending out which breakout board you are using
board = Breakout_1_2()  # original pyboard breakout
# board = Breakout_dseries_1_6()  # d-series pyboard breakout

lever = Lever(board.port_1, lever_event="lever")

states = ["available", "retracted"]
events = ["lever", "extend_again"]

v.press_count___ = 0
v.retract_time_ms = 1000
v.required_presses = 3
initial_state = "available"


def available(event):
    if event == "entry":
        lever.extend()
        v.press_count___ = 0
    elif event == "lever":
        v.press_count___ += 1
        if v.press_count___ == v.required_presses:
            goto_state("retracted")


def retracted(event):
    if event == "entry":
        lever.retract()
        set_timer("extend_again", v.retract_time_ms)
    elif event == "extend_again":
        goto_state("available")

For more information on writing your own tasks, refer to the pyControl documentation.