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[ashleebeggs]

Hi, I have one 32x16 panel with raspberry pi 3 and adafruit RGB RTC hat. I followed the instructions and tried running demo 1 and 3. Both show the panel split in half with blue and purple. I'm using a 5v 4A power supply plugged into the hat while the micro usb is plugged into the pi.

I'm not sure where to look for the issue. I'm not getting any errors either

Is there something I'm missing? Thanks!  

[ashleebeggs]

I run sudo ./demo -D 3 --led-gpio-mapping=adafuit-hat --led-rows=16

[angelogoncalve]

Try this in python:

from rgbmatrix import RGBMatrix, RGBMatrixOptions import time

number_of_rows = 16 number_of_panels = 1 parallel = 1 number_of_columns = 32

def rgbmatrix_options(): options = RGBMatrixOptions() options.multiplexing = 0 options.row_address_type = 0 options.brightness = 100 options.rows = number_of_rows options.cols = number_of_columns options.chain_length = number_of_panels options.parallel = parallel options.hardware_mapping = 'adafruit-hat' options.inverse_colors = False options.led_rgb_sequence = "RGB" options.gpio_slowdown = 4 options.pwm_lsb_nanoseconds = 130 options.show_refresh_rate = 0 options.disable_hardware_pulsing = True options.scan_mode = 1 options.pwm_bits = 1 options.daemon = 0 options.drop_privileges = 0 options.pixel_mapper_config = "U-mapper;Rotate:0" options.pwm_dither_bits = 0 return RGBMatrix(options=options)

display = rgbmatrix_options()

height = display.height width = display.width

print ('width={}, height={}'.format(width, height))

class Point: def init(self, x, y): self.x = x self.y = y

def __repr__(self):
    return '({}, {})'.format(self.x, self.y)

for x in range(0, width): for y in range(0, height): display.SetPixel(x, y, 0, 255, 0) point = Point(x, y) print point time.sleep(1)

[ashleebeggs]

Thanks for the response! I'm new to the pi and I'm not quite sure where to put the code. Is there an existing file I should add or edit this to?

Thanks

[angelogoncalve]

Yes, first create a .py file name and put the code with the correct indentation, use for example a python editor named PyCharm software that runs in Windows operating system computer, or you can use the Python2 compiler that comes in Debian operating system from raspberry.

Then in the command line use the command:

sudo python name_file.py