How do I enable GPIO?

Hey Everyone!

I'm restarting my Hyperion setup from scratch with a fresh install of Hyperbian. However, I'm not getting any output from the GPIO. I've found and tried these commands that are supposed to enable it:

sudo systemctl disable --now hyperion@pi

sudo systemctl enable --now hyperion@root

However, that didn't fix it. I've tried an update and full-upgrade as well. I haven't found anything in the documentation.

What are the correct commands to get the GPIO to respond correctly?

Thanks again for making a great product!!

Hey pclin,

Thank you for your help!

I've run the command you provided and it greatly improved the results. Now instead of just the first two LEDs lit, most LEDs along the strip are lit. However, they are not responding to output commands from Hyperion (they are not changing colors). The debug output is listed below.

Also, the sudo command you provided is not listed on the documentation page you linked and is not found on the documentation site at all (view results here). Adding this information to the Hypberbian documentation would be very helpful to anyone using GPIO output.

Thanks again for your help!

Debug part 1:

Zitat

2022-10-01T14:41:14.174Z [DAEMON] (INFO) CEC handler created
2022-10-01T14:41:14.285Z [EFFECTFILES] (INFO) 40 effects loaded from directory :/effects/
2022-10-01T14:41:14.319Z [EFFECTFILES] (INFO) 22 effect schemas loaded from directory :/effects/schema/
2022-10-01T14:41:14.324Z [EFFECTFILES] (INFO) 0 effects loaded from directory /root/.hyperion/custom-effects/
2022-10-01T14:41:14.594Z [SETTINGSMGR|First LED Hardware instance] (DEBUG) (SettingsManager.cpp:186:SettingsManager()) Settings database initialized
2022-10-01T14:41:14.654Z [BLACKBORDER|First LED Hardware instance] (DEBUG) (BlackBorderProcessor.cpp:72:handleSettingsUpdate()) Set mode to: default
2022-10-01T14:41:14.656Z [COMPONENTREG|First LED Hardware instance] (DEBUG) (ComponentRegister.cpp:82:setNewComponentState()) Blackborder detector: enabled
2022-10-01T14:41:14.721Z [DAEMON] (INFO) DISPMANX frame grabber created
2022-10-01T14:41:14.763Z [DAEMON] (DEBUG) (hyperiond.cpp:706:handleSettingsUpdate()) V4L2 grabber created
2022-10-01T14:41:14.702Z [LEDDEVICE|First LED Hardware instance] (INFO) Start LedDevice 'ws281x'.
2022-10-01T14:41:14.698Z [COMPONENTREG|First LED Hardware instance] (DEBUG) (ComponentRegister.cpp:82:setNewComponentState()) Smoothing: enabled
2022-10-01T14:41:14.707Z [SMOOTHING|First LED Hardware instance] (DEBUG) (LinearColorSmoothing.cpp:144:handleSettingsUpdate()) [0] - type: Linear, pause: false, settlingTime: 200ms, interval: 40ms (25Hz), delay: 0 frames
2022-10-01T14:41:14.711Z [LEDDEVICE|First LED Hardware instance] (DEBUG) (LedDevice.cpp:210:init()) deviceConfig: [{"autoStart":true,"colorOrder":"grb","currentLedCount":242,"dma":10,"enableAttempts":6,"enableAttemptsInterval":15,"gpio":21,"hardwareLedCount":242,"invert":false,"latchTime":0,"leds":242,"pwmchannel":0,"rewriteTime":1000,"rgbw":false,"type":"ws281x","whiteAlgorithm":"subtract_minimum"}]
2022-10-01T14:41:14.716Z [LEDDEVICE|First LED Hardware instance] (DEBUG) (LedDevice.cpp:563:setLedCount()) LedCount set to 242
2022-10-01T14:41:14.721Z [LEDDEVICE|First LED Hardware instance] (DEBUG) (LedDevice.cpp:569:setColorOrder()) ColorOrder set to GRB
2022-10-01T14:41:14.725Z [LEDDEVICE|First LED Hardware instance] (DEBUG) (LedDevice.cpp:576:setLatchTime()) LatchTime set to 0ms
2022-10-01T14:41:14.728Z [LEDDEVICE|First LED Hardware instance] (DEBUG) (LedDevice.cpp:600:setRewriteTime()) Refresh interval = 1000ms
2022-10-01T14:41:14.722Z [SMOOTHING|First LED Hardware instance] (DEBUG) (LinearColorSmoothing.cpp:683:selectConfig()) [0] - type: Linear, pause: false, settlingTime: 200ms, interval: 40ms (25Hz), delay: 0 frames
2022-10-01T14:41:14.730Z [LEDDEVICE|First LED Hardware instance] (DEBUG) (LedDevice.cpp:244:startRefreshTimer()) Device is not ready to start a refresh timer
2022-10-01T14:41:14.742Z [LEDDEVICE|First LED Hardware instance] (DEBUG) (LedDevice.cpp:582:setAutoStart()) AutoStart enabled
2022-10-01T14:41:14.750Z [LEDDEVICE|First LED Hardware instance] (DEBUG) (LedDevice.cpp:619:setEnableAttempts()) Max enable retries: 6, enable retry interval = 15s
2022-10-01T14:41:14.752Z [LEDDEVICE|First LED Hardware instance] (DEBUG) (LedDeviceWS281x.cpp:65:init()) ws281x strip type : 1050624
2022-10-01T14:41:14.755Z [LEDDEVICE|First LED Hardware instance] (DEBUG) (LedDevice.cpp:90:start()) Not enabled -> enable device
2022-10-01T14:41:14.739Z [EFFECTENGINE|First LED Hardware instance] (INFO) Run effect "Rainbow swirl fast" on channel 1
2022-10-01T14:41:14.757Z [LEDDEVICE|First LED Hardware instance] (DEBUG) (LedDevice.cpp:135:enable()) Enable device ws281x'
2022-10-01T14:41:14.768Z [LEDDEVICE|First LED Hardware instance] (INFO) Switching device ws281x ON
2022-10-01T14:41:14.770Z [LEDDEVICE|First LED Hardware instance] (DEBUG) (LedDevice.cpp:485:powerOn()) Power On: ws281x
2022-10-01T14:41:14.773Z [LEDDEVICE|First LED Hardware instance] (INFO) Device ws281x is ON
2022-10-01T14:41:14.784Z [LEDDEVICE|First LED Hardware instance] (INFO) LedDevice 'ws281x' enabled
2022-10-01T14:41:14.789Z [FLATBUFSERVER] (INFO) Started on port 19400
2022-10-01T14:41:14.796Z [PROTOSERVER] (INFO) Started on port 19445
2022-10-01T14:41:14.823Z [EFFECTENGINE|First LED Hardware instance] (DEBUG) (EffectEngine.cpp:206:runEffectScript()) Start the effect: name [Rainbow swirl fast]
2022-10-01T14:41:14.826Z [MUXER|First LED Hardware instance] (DEBUG) (PriorityMuxer.cpp:178:registerInput()) Register new input 'System/EFFECT' (Rainbow swirl fast) with priority 1 as inactive
2022-10-01T14:41:14.829Z [HYPERION|First LED Hardware instance] (INFO) Initial foreground effect 'Rainbow swirl fast' started
2022-10-01T14:41:14.837Z [EFFECTENGINE|First LED Hardware instance] (INFO) Run effect "Warm mood blobs" on channel 254
2022-10-01T14:41:14.862Z [EFFECTENGINE|First LED Hardware instance] (DEBUG)

Alles anzeigen

Debug part 2:

Zitat

 (EffectEngine.cpp:206:runEffectScript()) Start the effect: name [Warm mood blobs]

2022-10-01T14:41:14.866Z [MUXER|First LED Hardware instance] (DEBUG) (PriorityMuxer.cpp:178:registerInput()) Register new input 'System/EFFECT' (Warm mood blobs) with priority 254 as inactive

2022-10-01T14:41:14.870Z [HYPERION] (INFO) Initial background effect 'Warm mood blobs' started

2022-10-01T14:41:14.877Z [BOBLIGHT|First LED Hardware instance] (DEBUG) (BoblightServer.cpp:31:BoblightServer()) Instance created

2022-10-01T14:41:14.883Z [HYPERION-INSTMGR] (INFO) Hyperion instance 'First LED Hardware instance' has been started

2022-10-01T14:41:14.887Z [JSONSERVER] (DEBUG) (JsonServer.cpp:32:JsonServer()) Created instance

2022-10-01T14:41:14.889Z [COMPONENTREG|First LED Hardware instance] (DEBUG) (ComponentRegister.cpp:82:setNewComponentState()) LED device: enabled

2022-10-01T14:41:14.902Z [WEBSERVER] (DEBUG) (WebServer.cpp:37:initServer()) Initialize http-Webserver

2022-10-01T14:41:14.906Z [JSONSERVER] (INFO) Started on port 19444

2022-10-01T14:41:14.919Z [WEBSERVER] (DEBUG) (WebServer.cpp:37:initServer()) Initialize https-Webserver

2022-10-01T14:41:15.366Z [WEBSERVER] (DEBUG) (WebServer.cpp:92:handleSettingsUpdate()) Apply Webserver settings

2022-10-01T14:41:15.371Z [WEBSERVER] (DEBUG) (WebServer.cpp:110:handleSettingsUpdate()) Set document root to: :/webconfig

2022-10-01T14:41:15.373Z [WEBSERVER] (INFO) 'Hyperion http-Webserver' started on port 8090

2022-10-01T14:41:15.379Z [WEBSERVER] (DEBUG) (WebServer.cpp:92:handleSettingsUpdate()) Apply Webserver settings

2022-10-01T14:41:15.383Z [WEBSERVER] (DEBUG) (WebServer.cpp:110:handleSettingsUpdate()) Set document root to: :/webconfig

2022-10-01T14:41:15.485Z [WEBSERVER] (DEBUG) (WebServer.cpp:176:handleSettingsUpdate()) Setup SSL certificate

2022-10-01T14:41:15.503Z [WEBSERVER] (DEBUG) (WebServer.cpp:194:handleSettingsUpdate()) Setup private SSL key

2022-10-01T14:41:15.506Z [WEBSERVER] (INFO) 'Hyperion https-Webserver' started on port 8092

2022-10-01T14:41:16.066Z [MUXER|First LED Hardware instance] (DEBUG) (PriorityMuxer.cpp:422:updatePriorities()) Set visible priority to 254

2022-10-01T14:41:16.070Z [HYPERION|First LED Hardware instance] (DEBUG) (Hyperion.cpp:629:handleSourceAvailability()) new source available -> Resume output processing and switch LED-Device on

2022-10-01T14:41:16.074Z [SMOOTHING|First LED Hardware instance] (DEBUG) (LinearColorSmoothing.cpp:683:selectConfig()) [7] - type: Linear, pause: false, settlingTime: 200ms, interval: 40ms (25Hz), delay: 0 frames

2022-10-01T14:41:16.077Z [LEDDEVICE|First LED Hardware instance] (DEBUG) (LedDevice.cpp:397:switchOn()) Device ws281x is already on. Skipping.

2022-10-01T14:41:16.119Z [MUXER|First LED Hardware instance] (DEBUG) (PriorityMuxer.cpp:422:updatePriorities()) Set visible priority to 1

2022-10-01T14:41:16.123Z [SMOOTHING|First LED Hardware instance] (DEBUG) (LinearColorSmoothing.cpp:683:selectConfig()) [0] - type: Linear, pause: false, settlingTime: 200ms, interval: 40ms (25Hz), delay: 0 frames

2022-10-01T14:41:16.126Z [HYPERION] (DEBUG) (BGEffectHandler.h:101:handlePriorityUpdate()) Stop background (color-) effect as it moved out of scope

2022-10-01T14:41:16.258Z [EFFECTENGINE|First LED Hardware instance] (INFO) Effect [Warm mood blobs] finished

2022-10-01T14:41:16.364Z [MUXER|First LED Hardware instance] (DEBUG) (PriorityMuxer.cpp:359:updatePriorities()) Removed source priority 254

2022-10-01T14:41:18.805Z [EFFECTENGINE|First LED Hardware instance] (INFO) Effect [Rainbow swirl fast] finished

2022-10-01T14:41:18.867Z [MUXER|First LED Hardware instance] (DEBUG) (PriorityMuxer.cpp:371:updatePriorities()) Timeout clear for priority 1

2022-10-01T14:41:18.875Z [MUXER|First LED Hardware instance] (DEBUG) (PriorityMuxer.cpp:422:updatePriorities()) Set visible priority to 255

2022-10-01T14:41:18.883Z [HYPERION|First LED Hardware instance] (DEBUG) (Hyperion.cpp:621:handleSourceAvailability()) No source left -> Pause output processing and switch LED-Device off

2022-10-01T14:41:18.891Z [HYPERION] (DEBUG) (BGEffectHandler.h:106:handlePriorityUpdate()) Start background (color-) effect as it moved in scope

2022-10-01T14:41:18.893Z [LEDDEVICE|First LED Hardware instance] (INFO) Switching device ws281x OFF

2022-10-01T14:41:18.914Z [LEDDEVICE|First LED Hardware instance] (DEBUG) (LedDevice.cpp:471:powerOff()) Power Off: ws281x

2022-10-01T14:41:18.907Z [EFFECTENGINE|First LED Hardware instance] (INFO) Run effect "Warm mood blobs" on channel 254

2022-10-01T14:41:18.916Z [LEDDEVICE|First LED Hardware instance] (DEBUG) (LedDevice.cpp:368:writeBlack()) Set LED strip to black to switch of LEDs

2022-10-01T14:41:18.919Z [EFFECTENGINE|First LED Hardware instance] (DEBUG) (EffectEngine.cpp:206:runEffectScript()) Start the effect: name [Warm mood blobs]

2022-10-01T14:41:18.928Z [MUXER|First LED Hardware instance] (DEBUG) (PriorityMuxer.cpp:178:registerInput()) Register new input 'System/EFFECT' (Warm mood blobs) with priority 254 as inactive

2022-10-01T14:41:18.936Z [HYPERION] (INFO) Initial background effect 'Warm mood blobs' started

2022-10-01T14:41:18.939Z [LEDDEVICE|First LED Hardware instance] (INFO) Device ws281x is OFF

2022-10-01T14:41:19.626Z [MUXER|First LED Hardware instance] (DEBUG) (PriorityMuxer.cpp:422:updatePriorities()) Set visible priority to 254

2022-10-01T14:41:19.629Z [HYPERION|First LED Hardware instance] (DEBUG) (Hyperion.cpp:629:handleSourceAvailability()) new source available -> Resume output processing and switch LED-Device on

2022-10-01T14:41:19.633Z [LEDDEVICE|First LED Hardware instance] (INFO) Switching device ws281x ON

2022-10-01T14:41:19.636Z [LEDDEVICE|First LED Hardware instance] (DEBUG) (LedDevice.cpp:485:powerOn()) Power On: ws281x

2022-10-01T14:41:19.639Z [LEDDEVICE|First LED Hardware instance] (INFO) Device ws281x is ON

2022-10-01T14:41:19.641Z [SMOOTHING|First LED Hardware instance] (DEBUG) (LinearColorSmoothing.cpp:683:selectConfig()) [7] - type: Linear, pause: false, settlingTime: 200ms, interval: 40ms (25Hz), delay: 0 frames

2022-10-01T14:41:19.923Z [WEBSOCKET] (DEBUG) (WebSocketClient.cpp:30:WebSocketClient()) New connection from ::ffff:192.168.1.143

2022-10-01T14:41:21.780Z [WEBSOCKET] (DEBUG) (WebSocketClient.cpp:30:WebSocketClient()) Previous line repeats 1 times

2022-10-01T14:41:21.788Z [WEBSOCKET] (DEBUG) (JsonAPI.cpp:129:handleInstanceSwitch()) Client '::ffff:192.168.1.143' switch to Hyperion instance 0

2022-10-01T14:41:22.509Z [WEBSOCKET] (DEBUG) (JsonAPI.cpp:129:handleInstanceSwitch()) Previous line repeats 1 times

2022-10-01T14:41:22.516Z [WEBSOCKET] (DEBUG) (JsonAPI.cpp:1184:handleLoggingCommand()) log streaming activated for client ::ffff:192.168.1.143

2022-10-01T14:54:54.914Z [WEBSOCKET] (DEBUG) (JsonAPI.cpp:1184:handleLoggingCommand()) Previous line repeats 1 times

2022-10-01T14:54:54.920Z [WEBSOCKET] (DEBUG) (WebSocketClient.cpp:215:sendClose()) Send close to ::ffff:192.168.1.143: 1000

2022-10-01T14:54:55.056Z [WEBSOCKET] (DEBUG) (WebSocketClient.cpp:30:WebSocketClient()) New connection from ::ffff:192.168.1.143

2022-10-01T14:54:55.497Z [WEBSOCKET] (DEBUG) (JsonAPI.cpp:129:handleInstanceSwitch()) Client '::ffff:192.168.1.143' switch to Hyperion instance 0

2022-10-01T14:55:02.596Z [WEBSOCKET] (DEBUG) (JsonAPI.cpp:1530:handleLedDeviceCommand()) message: [{"command":"leddevice","ledDeviceType":"ws281x","params":{"discoverAll":true},"subcommand":"discover","tan":209}]

2022-10-01T14:55:02.608Z [WEBSOCKET] (DEBUG) (JsonAPI.cpp:1554:handleLedDeviceCommand()) response: [{"devices":[{"found":true}],"ledDeviceType":"ws281x"}]

2022-10-01T14:55:10.805Z [WEBSOCKET] (DEBUG) (JsonAPI.cpp:1530:handleLedDeviceCommand()) message: [{"command":"leddevice","ledDeviceType":"ws281x","params":{"discoverAll":true},"subcommand":"discover","tan":507}]

2022-10-01T14:55:10.813Z [WEBSOCKET] (DEBUG) (JsonAPI.cpp:1554:handleLedDeviceCommand()) response: [{"devices":[{"found":true}],"ledDeviceType":"ws281x"}]

2022-10-01T14:55:13.085Z [WEBSOCKET] (DEBUG) (WebSocketClient.cpp:215:sendClose()) Send close to ::ffff:192.168.1.143: 1000

Alles anzeigen

...and the setup is a Pi Zero with header pins and ws2812b LED strip. It was running fine last year, but a bad power supply blew out the Pi and LEDs. I'm just now getting around to recreating it with a new Pi, power, and lights.

Thanks again pclin !

I fixed it.

The ground wire was not connected correctly. Once the ground was in place, colors work!

Thanks again for your help!!

Ahh, nice! Thanks for the tips!!

I have also heard that adding a capacitor across the LED strip will help with abrupt power changes. Is it actually advisable to install a capacitor for power regulation?

Thanks again for your help!!