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How to add new device (Toradex Colibri) to allow controlling WS2811/WS2812 LED strips? #211

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davidgengenbach opened this issue Aug 26, 2024 · 1 comment
Open

How to add new device (Toradex Colibri) to allow controlling WS2811/WS2812 LED strips? #211

davidgengenbach opened this issue Aug 26, 2024 · 1 comment

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@davidgengenbach
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I am trying to control LED strips (WS281X) using the GPIO interface on a Colibri iMX7 (see data sheet in the attachments or the link).

As far as I understood, I would need to create GpioDeviceFactoryInterface? How would I go about that?
The Colibri device also have PWM pins if that is easier.

colibri_arm_som_imx7_datasheet.pdf

import com.diozero.devices.LED;

public class LEDTest {

  public static void main(String[] args) {
    try (LED led = new LED(1)) {
      led.on();
    }
  }
}

has the output:

WARN com.diozero.sbc.LocalSystemInfo.populateFromLsCpu - Error with lscpu command: Cannot run program "lscpu": error=2, No such file or directory
ERROR bridge.LEDTest.main - com.diozero.api.NoSuchDeviceException: No such GPIO #1
        at com.diozero.sbc.BoardPinInfo.lambda$getByGpioNumberOrThrow$0(BoardPinInfo.java:239)
        at java.base/java.util.Optional.orElseThrow(Optional.java:403)
        at com.diozero.sbc.BoardPinInfo.getByGpioNumberOrThrow(BoardPinInfo.java:239)
        at com.diozero.api.DigitalOutputDevice.<init>(DigitalOutputDevice.java:142)
        at com.diozero.api.DigitalOutputDevice.<init>(DigitalOutputDevice.java:129)
        at com.diozero.api.DigitalOutputDevice.<init>(DigitalOutputDevice.java:118)
        at com.diozero.devices.LED.<init>(LED.java:82)
        at bridge.LEDTest.main(LEDTest.java:14)

Executing:

    NativeDeviceFactoryInterface x = DeviceFactoryHelper.getNativeDeviceFactory();
    Logger.info(x.getBoardPinInfo().getGpioPins());

has the output:

INFO bridge.LEDTest.main - []

$ gpioinfo
gpiochip0 - 32 lines:
	line   0:  "SODIMM_43"         "cd"   input   active-low [used]
	line   1:  "SODIMM_45"    "Wake-Up"   input  active-high [used pull-down]
	line   2: "SODIMM_135"       unused   input  active-high
	line   3:  "SODIMM_22"       unused   input  active-high
	line   4:      unnamed        "scl"  output  active-high [used open-drain]
	line   5:      unnamed        "sda"   input  active-high [used open-drain]
	line   6:  "SODIMM_37"       unused   input  active-high
	line   7:  "SODIMM_29"       unused   input  active-high
	line   8:  "SODIMM_59"       unused   input  active-high
	line   9:  "SODIMM_28"       unused   input  active-high
	line  10:  "SODIMM_30"       unused   input  active-high
	line  11:  "SODIMM_67"       unused   input  active-high
	line  12:      unnamed       unused   input  active-high
	line  13:      unnamed       unused   input  active-high
	line  14: "SODIMM_188"       unused   input  active-high
	line  15: "SODIMM_178"       unused   input  active-high
	line  16:      unnamed       unused   input  active-high
	line  17:      unnamed       unused   input  active-high
	line  18:      unnamed       unused   input  active-high
	line  19:      unnamed       unused   input  active-high
	line  20:      unnamed       unused   input  active-high
	line  21:      unnamed       unused   input  active-high
	line  22:      unnamed       unused   input  active-high
	line  23:      unnamed       unused   input  active-high
	line  24:      unnamed       unused   input  active-high
	line  25:      unnamed       unused   input  active-high
	line  26:      unnamed       unused   input  active-high
	line  27:      unnamed       unused   input  active-high
	line  28:      unnamed       unused   input  active-high
	line  29:      unnamed       unused   input  active-high
	line  30:      unnamed       unused   input  active-high
	line  31:      unnamed       unused   input  active-high
gpiochip1 - 32 lines:
	line   0: "SODIMM_111"       unused   input  active-high
	line   1: "SODIMM_113"       unused   input  active-high
	line   2: "SODIMM_115"       unused   input  active-high
	line   3: "SODIMM_117"       unused   input  active-high
	line   4: "SODIMM_119"       unused   input  active-high
	line   5: "SODIMM_121"       unused   input  active-high
	line   6: "SODIMM_123"       unused   input  active-high
	line   7: "SODIMM_125"       unused   input  active-high
	line   8:  "SODIMM_91"       unused   input  active-high
	line   9:  "SODIMM_89"       unused   input  active-high
	line  10: "SODIMM_105"       unused   input  active-high
	line  11: "SODIMM_152"       unused   input  active-high
	line  12: "SODIMM_150"       unused   input  active-high
	line  13:  "SODIMM_95"       unused   input  active-high
	line  14: "SODIMM_126"       unused   input  active-high
	line  15: "SODIMM_107"       unused   input  active-high
	line  16: "SODIMM_114"       unused   input  active-high
	line  17: "SODIMM_116"       unused   input  active-high
	line  18: "SODIMM_118"       unused   input  active-high
	line  19: "SODIMM_120"       unused   input  active-high
	line  20: "SODIMM_122"       unused   input  active-high
	line  21: "SODIMM_124"       unused   input  active-high
	line  22: "SODIMM_127"       unused   input  active-high
	line  23: "SODIMM_130"       unused   input  active-high
	line  24: "SODIMM_132"       unused   input  active-high
	line  25: "SODIMM_134"       unused   input  active-high
	line  26: "SODIMM_133"       unused   input  active-high
	line  27: "SODIMM_104"       unused   input  active-high
	line  28: "SODIMM_106"       unused   input  active-high
	line  29: "SODIMM_110"       unused   input  active-high
	line  30: "SODIMM_112"       unused   input  active-high
	line  31: "SODIMM_128"       unused   input  active-high
gpiochip2 - 32 lines:
	line   0:  "SODIMM_56"       unused   input  active-high
	line   1:  "SODIMM_44"       unused   input  active-high
	line   2:  "SODIMM_68"       unused   input  active-high
	line   3:  "SODIMM_82"       unused   input  active-high
	line   4:  "SODIMM_93"       unused   input  active-high
	line   5:  "SODIMM_76"       unused   input  active-high
	line   6:  "SODIMM_70"       unused   input  active-high
	line   7:  "SODIMM_60"       unused   input  active-high
	line   8:  "SODIMM_58"       unused   input  active-high
	line   9:  "SODIMM_78"       unused   input  active-high
	line  10:  "SODIMM_72"       unused   input  active-high
	line  11:  "SODIMM_80"       unused   input  active-high
	line  12:  "SODIMM_46"       unused   input  active-high
	line  13:  "SODIMM_62"       unused   input  active-high
	line  14:  "SODIMM_48"       unused   input  active-high
	line  15:  "SODIMM_74"       unused   input  active-high
	line  16:  "SODIMM_50"       unused   input  active-high
	line  17:  "SODIMM_52"       unused   input  active-high
	line  18:  "SODIMM_54"       unused   input  active-high
	line  19:  "SODIMM_66"       unused   input  active-high
	line  20:  "SODIMM_64"       unused   input  active-high
	line  21:  "SODIMM_57"       unused   input  active-high
	line  22:  "SODIMM_61"       unused   input  active-high
	line  23: "SODIMM_136"       unused   input  active-high
	line  24: "SODIMM_138"       unused   input  active-high
	line  25: "SODIMM_140"       unused   input  active-high
	line  26: "SODIMM_142"       unused   input  active-high
	line  27: "SODIMM_144"       unused   input  active-high
	line  28: "SODIMM_146"       unused   input  active-high
	line  29:      unnamed       unused   input  active-high
	line  30:      unnamed       unused   input  active-high
	line  31:      unnamed       unused   input  active-high
gpiochip3 - 32 lines:
	line   0:  "SODIMM_35"       unused   input  active-high
	line   1:  "SODIMM_33"       unused   input  active-high
	line   2:  "SODIMM_38"       unused   input  active-high
	line   3:  "SODIMM_36"       unused   input  active-high
	line   4:  "SODIMM_21"       unused   input  active-high
	line   5:  "SODIMM_19"       unused   input  active-high
	line   6: "SODIMM_131"       unused   input  active-high
	line   7: "SODIMM_129" "regulator-usbh-vbus" output active-low [used]
	line   8:  "SODIMM_90"       unused   input  active-high
	line   9:  "SODIMM_92"       unused   input  active-high
	line  10:  "SODIMM_88"       unused   input  active-high
	line  11:  "SODIMM_86"   "spi2 CS0"  output   active-low [used]
	line  12:  "SODIMM_81"       unused   input  active-high
	line  13:  "SODIMM_94"       unused   input  active-high
	line  14:  "SODIMM_96"       unused   input  active-high
	line  15:  "SODIMM_75"       unused   input  active-high
	line  16: "SODIMM_101"       unused   input  active-high
	line  17: "SODIMM_103"       unused   input  active-high
	line  18:  "SODIMM_79"       unused   input  active-high
	line  19:  "SODIMM_97"       unused   input  active-high
	line  20:  "SODIMM_67"       unused   input  active-high
	line  21:  "SODIMM_59"       unused   input  active-high
	line  22:  "SODIMM_85"       unused   input  active-high
	line  23:  "SODIMM_65"       unused   input  active-high
	line  24:      unnamed       unused   input  active-high
	line  25:      unnamed       unused   input  active-high
	line  26:      unnamed       unused   input  active-high
	line  27:      unnamed       unused   input  active-high
	line  28:      unnamed       unused   input  active-high
	line  29:      unnamed       unused   input  active-high
	line  30:      unnamed       unused   input  active-high
	line  31:      unnamed       unused   input  active-high
gpiochip4 - 32 lines:
	line   0:  "SODIMM_69"       unused   input  active-high
	line   1:  "SODIMM_71"     "enable"  output  active-high [used]
	line   2:  "SODIMM_73"       unused   input  active-high
	line   3:  "SODIMM_47"       unused   input  active-high
	line   4: "SODIMM_190"       unused   input  active-high
	line   5: "SODIMM_192"       unused   input  active-high
	line   6:  "SODIMM_49"       unused   input  active-high
	line   7:  "SODIMM_51"       unused   input  active-high
	line   8:  "SODIMM_53"       unused   input  active-high
	line   9:      unnamed       unused   input  active-high
	line  10:      unnamed       unused   input  active-high
	line  11:  "SODIMM_98"       unused  output  active-high
	line  12: "SODIMM_184"       unused   input  active-high
	line  13: "SODIMM_186"       unused   input  active-high
	line  14:  "SODIMM_23"       unused   input  active-high
	line  15:  "SODIMM_31"       unused   input  active-high
	line  16: "SODIMM_100"       unused   input  active-high
	line  17: "SODIMM_102"       unused   input  active-high
	line  18:      unnamed       unused   input  active-high
	line  19:      unnamed       unused   input  active-high
	line  20:      unnamed       unused   input  active-high
	line  21:      unnamed       unused   input  active-high
	line  22:      unnamed       unused   input  active-high
	line  23:      unnamed       unused   input  active-high
	line  24:      unnamed       unused   input  active-high
	line  25:      unnamed       unused   input  active-high
	line  26:      unnamed       unused   input  active-high
	line  27:      unnamed       unused   input  active-high
	line  28:      unnamed       unused   input  active-high
	line  29:      unnamed       unused   input  active-high
	line  30:      unnamed       unused   input  active-high
	line  31:      unnamed       unused   input  active-high
gpiochip5 - 32 lines:
	line   0:      unnamed       unused   input  active-high
	line   1:      unnamed       unused   input  active-high
	line   2:      unnamed       unused   input  active-high
	line   3:      unnamed       unused   input  active-high
	line   4:      unnamed       unused   input  active-high
	line   5:      unnamed       unused   input  active-high
	line   6:      unnamed       unused   input  active-high
	line   7:      unnamed       unused   input  active-high
	line   8:      unnamed       unused   input  active-high
	line   9:      unnamed       unused   input  active-high
	line  10:      unnamed       unused   input  active-high
	line  11:      unnamed       unused  output  active-high
	line  12: "SODIMM_169"       unused   input  active-high
	line  13: "SODIMM_157"       unused   input  active-high
	line  14:      unnamed       unused   input  active-high
	line  15: "SODIMM_163"       unused   input  active-high
	line  16:  "SODIMM_77"       unused   input  active-high
	line  17:  "SODIMM_24"       unused   input  active-high
	line  18:      unnamed       unused   input  active-high
	line  19:  "SODIMM_25"       unused   input  active-high
	line  20:  "SODIMM_27"       unused   input  active-high
	line  21:  "SODIMM_32"       unused   input  active-high
	line  22:  "SODIMM_34"       unused   input  active-high
	line  23:      unnamed       unused   input  active-high
	line  24:      unnamed       unused   input  active-high
	line  25:      unnamed       unused   input  active-high
	line  26:      unnamed       unused   input  active-high
	line  27:      unnamed       unused   input  active-high
	line  28:      unnamed       unused   input  active-high
	line  29:      unnamed       unused   input  active-high
	line  30:      unnamed       unused   input  active-high
	line  31:      unnamed       unused   input  active-high
gpiochip6 - 32 lines:
	line   0:      unnamed       unused   input  active-high
	line   1:      unnamed       unused   input  active-high
	line   2:  "SODIMM_63"       unused   input  active-high
	line   3:  "SODIMM_55"       unused   input  active-high
	line   4:      unnamed       unused   input  active-high
	line   5:      unnamed       unused   input  active-high
	line   6:      unnamed       unused   input  active-high
	line   7:      unnamed       unused   input  active-high
	line   8: "SODIMM_196"        "scl"  output  active-high [used open-drain]
	line   9: "SODIMM_194"        "sda"   input  active-high [used open-drain]
	line  10:      unnamed       unused   input  active-high
	line  11:  "SODIMM_99"       unused   input  active-high
	line  12:      unnamed       unused   input  active-high
	line  13:      unnamed       unused   input  active-high
	line  14: "SODIMM_137"         "id"   input  active-high [used]
	line  15:      unnamed       unused   input  active-high
	line  16:      unnamed       unused   input  active-high
	line  17:      unnamed       unused   input  active-high
	line  18:      unnamed       unused   input  active-high
	line  19:      unnamed       unused   input  active-high
	line  20:      unnamed       unused   input  active-high
	line  21:      unnamed       unused   input  active-high
	line  22:      unnamed       unused   input  active-high
	line  23:      unnamed       unused   input  active-high
	line  24:      unnamed       unused   input  active-high
	line  25:      unnamed       unused   input  active-high
	line  26:      unnamed       unused   input  active-high
	line  27:      unnamed       unused   input  active-high
	line  28:      unnamed       unused   input  active-high
	line  29:      unnamed       unused   input  active-high
	line  30:      unnamed       unused   input  active-high
	line  31:      unnamed       unused   input  active-high

Thanks in advance!
@mattjlewis
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Can you provide further details on the operating system please. Are you able to install lscpu?

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@davidgengenbach @mattjlewis and others