Pixel Trinkey issues Warning about RTC, does not cold boot into code.py #10711
Description
CircuitPython version and board name
Adafruit CircuitPython 10.0.3 on 2025-10-17; Adafruit Pixel Trinkey M0 with samd21e18 Board ID:adafruit_pixel_trinkey_m0 UID:6A4C909D434C585020312E320C2619FFCode/REPL
import time import board import neopixel # --- Configuration --- NUM_LEDS = 160 # Number of LEDs in your external strip DATA_PIN = board.DATA # External data pin (D0 pad on Trinkey) BRIGHTNESS = 0.5 # Set between 0.0 and 1.0 to reduce power usage # Initialize the NeoPixel strip strip = neopixel.NeoPixel( DATA_PIN, NUM_LEDS, brightness=BRIGHTNESS, auto_write=False, pixel_order=neopixel.RGB ) # --- Helper function: Rainbow color wheel --- def wheel(pos): """Returns a color from 0–255 on a rainbow color wheel.""" if pos < 0 or pos > 255: return (0, 0, 0) if pos < 85: return (255 - pos * 3, pos * 3, 0) elif pos < 170: pos -= 85 return (0, 255 - pos * 3, pos * 3) else: pos -= 170 return (pos * 3, 0, 255 - pos * 3) # --- Fill strip initially with rainbow colors --- for i in range(NUM_LEDS): color = wheel((i * 256) // NUM_LEDS) strip[i] = color strip.show() # --- Animate the rainbow shifting forward --- while True: # print("jorge was here") first_color = strip[0] # Shift all LEDs forward for i in range(NUM_LEDS - 1): strip[i] = strip[i + 1] # Put first color at the end strip[NUM_LEDS - 1] = first_color strip.show() time.sleep(0.005) # Adjust to control animation speedBehavior
On a cold boot, the following warnings are issued, and code.py is not executed. Desired action is that we apply power and the lights animate as programmed.
WARNING: Could not determine epoch year (argument num/types mismatch), assuming 1970
WARNING: Could not sync device's clock: no module named 'rtc'
WARNING: Could not validate time: no module named 'rtc'
�]0;🐍REPL | 10.0.3�
Adafruit CircuitPython 10.0.3 on 2025-10-17; Adafruit Pixel Trinkey M0 with samd21e18
────────────────────────────────────────────
�]0;🐍Done | 10.0.3�\soft reboot
Auto-reload is off.
Running in safe mode! Not running saved code.
You are in safe mode because:
CircuitPython core code crashed hard. Whoops!
Hard fault: memory access or instruction error.
Please file an issue with your program at github.com/adafruit/circuitpython/issues.
Press reset to exit safe mode.
Press Ctrl-C to enter the REPL. Use CTRL-D to reload.
�]0;🐍REPL | 10.0.3�
Adafruit CircuitPython 10.0.3 on 2025-10-17; Adafruit Pixel Trinkey M0 with samd21e18
Description
Once you click the reset button, in warm boot, the code appears to execute correctly.
I don't think the Pixel Trinkey has an RTC, so this warning is correct, but it inhibits the power-on behavior of running code.py.
Additional information
No response