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Help a noob - Tartupets - May-28-2019 Hello Got me a Trinket M0 with CircuitPython Successfully loaded and ran Trinket M0 Media Dial code and functionality with rotary encoder (arrow up-arrow down) Actually, I want to change windows function from arrow up-down to volume increment-decrement added the import for the correct library as shown in: https://circuitpython.readthedocs.io/projects/hid/en/latest/api.html#adafruit-hid-consumer-control-consumercontrol import time from digitalio import * from board import * from adafruit_hid.keyboard import Keyboard from adafruit_hid.keycode import Keycode from adafruit_hid.consumer_control_code import ConsumerControlCode import neopixel Modified original code: # Check if rotary encoder went up if encoder_direction == 1: kbd.press(Keycode.CONTROL, Keycode.UP_ARROW) kbd.release_all() # Check if rotary encoder went down if encoder_direction == -1: kbd.press(Keycode.CONTROL, Keycode.DOWN_ARROW) kbd.release_all() to # Check if rotary encoder went up if encoder_direction == 1: consumer_control.send(ConsumerControlCode.VOLUME_INCREMENT) # Check if rotary encoder went down if encoder_direction == -1: consumer_control.send(ConsumerControlCode.VOLUME_DECREMENT)Does not work, Trinket shows its a NameError (it has an RGB status LED on the board) More than likely, I will never touch Python or related stuff. Looks like a simple thing to fix, any help would be awesome RE: Help a noob - perfringo - May-28-2019 Is there more specific information about error? In case of NameError Python usually reports what name is not defined. RE: Help a noob - Tartupets - May-28-2019 Trinket has RGB LED, that flashes the information. Im using Mu editor, not sure at this point if it has a debug built in. But it flashes location information too fast to count. Flashes white for NameError and then fast series specifing the location of error. It flashes NameError on the import section and encoder signal section. (alternating between 10's (blue) line where the import is declared and 100's (yellow) line where the encoder signal is defined). So I think there is a mismatch in both cases...somehow. I will copy the entire Media dial code: """ A CircuitPython 'multimedia' dial demo Uses a Trinket M0 + Rotary Encoder -> HID keyboard out with neopixel ring """ import time from digitalio import * from board import * from adafruit_hid.keyboard import Keyboard from adafruit_hid.keycode import Keycode import neopixel DOT_COLOR = 0xFF0000 # set to your favorite webhex color PRESSED_DOT_COLOR = 0x008080 # set to your second-favorite color LIT_TIMEOUT = 15 # after n seconds, turn off ring # NeoPixel LED ring on pin D1 # Ring code will auto-adjust if not 16 so change to any value! ring = neopixel.NeoPixel(D1, 16, brightness=0.2) dot_location = 0 # what dot is currently lit # Encoder button is a digital input with pullup on D2 button = DigitalInOut(D2) button.direction = Direction.INPUT button.pull = Pull.UP # Rotary encoder inputs with pullup on D3 & D4 rot_a = DigitalInOut(D3) rot_a.direction = Direction.INPUT rot_a.pull = Pull.UP rot_b = DigitalInOut(D4) rot_b.direction = Direction.INPUT rot_b.pull = Pull.UP # Used to do HID output, see below kbd = Keyboard() # time keeper, so we know when to turn off the LED timestamp = time.monotonic() ######################### MAIN LOOP ############################## # the counter counts up and down, it can roll over! 16-bit value encoder_counter = 0 # direction tells you the last tick which way it went encoder_direction = 0 # constants to help us track what edge is what A_POSITION = 0 B_POSITION = 1 UNKNOWN_POSITION = -1 # initial state so we know if something went wrong rising_edge = falling_edge = UNKNOWN_POSITION # get initial/prev state and store at beginning last_button = button.value rotary_prev_state = [rot_a.value, rot_b.value] while True: # reset encoder and wait for the next turn encoder_direction = 0 # take a 'snapshot' of the rotary encoder state at this time rotary_curr_state = [rot_a.value, rot_b.value] if rotary_curr_state != rotary_prev_state: #print("Changed") if rotary_prev_state == [True, True]: # we caught the first falling edge! if not rotary_curr_state[A_POSITION]: #print("Falling A") falling_edge = A_POSITION elif not rotary_curr_state[B_POSITION]: #print("Falling B") falling_edge = B_POSITION else: # uhh something went deeply wrong, lets start over continue if rotary_curr_state == [True, True]: # Ok we hit the final rising edge if not rotary_prev_state[B_POSITION]: rising_edge = B_POSITION # print("Rising B") elif not rotary_prev_state[A_POSITION]: rising_edge = A_POSITION # print("Rising A") else: # uhh something went deeply wrong, lets start over continue # check first and last edge if (rising_edge == A_POSITION) and (falling_edge == B_POSITION): encoder_counter -= 1 encoder_direction = -1 print("%d dec" % encoder_counter) elif (rising_edge == B_POSITION) and (falling_edge == A_POSITION): encoder_counter += 1 encoder_direction = 1 print("%d inc" % encoder_counter) else: # (shrug) something didn't work out, oh well! encoder_direction = 0 # reset our edge tracking rising_edge = falling_edge = UNKNOWN_POSITION rotary_prev_state = rotary_curr_state # Check if rotary encoder went up if encoder_direction == 1: kbd.press(Keycode.CONTROL, Keycode.UP_ARROW) kbd.release_all() # Check if rotary encoder went down if encoder_direction == -1: kbd.press(Keycode.CONTROL, Keycode.DOWN_ARROW) kbd.release_all() # Button was 'just pressed' if (not button.value) and last_button: print("Button pressed!") kbd.press(44) #Keycode.SPACE kbd.release_all() ring[dot_location] = PRESSED_DOT_COLOR # show it was pressed on ring timestamp = time.monotonic() # something happened! elif button.value and (not last_button): print("Button Released!") # kbd.press(Keycode.SHIFT, Keycode.SIX) # kbd.release_all() ring[dot_location] = DOT_COLOR # show it was released on ring timestamp = time.monotonic() # something happened! last_button = button.value if encoder_direction != 0: timestamp = time.monotonic() # something happened! # spin neopixel LED around! previous_location = dot_location dot_location += encoder_direction # move dot in the direction dot_location += len(ring) # in case we moved negative, wrap around dot_location %= len(ring) if button.value: ring[dot_location] = DOT_COLOR # turn on new dot else: ring[dot_location] = PRESSED_DOT_COLOR # turn on new dot ring[previous_location] = 0 # turn off previous dot if time.monotonic() > timestamp + LIT_TIMEOUT: ring[dot_location] = 0 # turn off ring light temporarily RE: Help a noob - Tartupets - May-28-2019 Hello Got me thinking: best to get a proper editor with debugger. RE: Help a noob - buran - May-28-2019 (May-28-2019, 11:59 AM)Tartupets Wrote: Got me thinking: best to get a proper editor with debugger. look at VSCode RE: Help a noob - Tartupets - May-29-2019 (May-28-2019, 12:48 PM)buran Wrote: look at VSCode Got VSCode and got Python environment installed. Code loaded Cant get debugger to work, asks to open a folder. Mu Editor has a rudimentary debugger: added import commands on both ConsumerControl and ConsumerControlCode libraries. Mu editor said: Import successful, but unused Modified the rotary encoder command and mu editor said: consumer_control.send may be undefined or defined from star imports: board digitalio Then I rotated the encoder to check if it works and then Trinket starts showing NameError (white light) and ValueError (Purple). Managed to read a little bit of the position counter and all faults point to consumer_control.send (placement showed on line 100+) RE: Help a noob - Tartupets - May-29-2019 Hello The solution manifested itself: had to restart the PC. Work flawlessly as an external volume control... |