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DIY Ambilight – part 2

07-03-2019 DIY No Comments

A while back I started with an Ambilight project based on a Raspberry PI and Hyperion. All the parts were delivered so I could finish the installation. The last part was to cut the LED strip into 5 pieces and solder them back together so they could be mounted on the TV.

The moment of truth… Failure! The last part of the strip (the last 7 LEDs) were all white so I thought something was wrong with the soldering. I removed the last part and tried again. Nothing! Now not one LED lit up…

So back to the shed… After a while and trying shorter pieces of LED strip I still didn’t have a working solution. The logging of the software (Hyperion) however looked ok. I saw the software start and also changes in the color of the LEDs was visible in the log. So I started to suspect the PI.

I installed Raspbian instead of Openelec to be able to use some troubleshooting tools. I used gpiotest (based on this article) and things didn’t look good:

It looked like I fried the gpio pins 🙁

One possible reason for this is that I accidentally put 5V on one of the used pins.  These are 3.3 volt logic pins. A voltage near 3.3 V is interpreted as a logic one while a voltage near zero volts is a logic zero. A GPIO pin should never be connected to a voltage source greater than 3.3V or less than 0V, as prompt damage to the chip may occur as the input pin substrate diodes conduct.

So I ordered a new PI and did the test again. This looked a lot better:

So I got a working PI again. Now I have to wait for a new LED strip 🙂

To be continued…

ambilightgpiotesthyperionraspberry

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Jeroen BurenFollow

Jeroen Buren
jeroen_burenJeroen Buren@jeroen_buren·
23 Feb

Eerlijk gezegd ben ik niet zo opstandig maar dit kan je toch niet volhouden? Gooi wat mij betreft de winkels, sportscholen en restaurants maar open! Ik weet wel op wie ik niet ga stemmen... #persconferentie #klaarmetRutte

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jeroen_burenJeroen Buren@jeroen_buren·
22 Feb

Installed vSphere with K8S using this awesome script (https://github.com/lamw/vghetto-vsphere-with-kubernetes-external-nsxt-automated-lab-deployment) from @lamw. The only thing I could not get running was the yelb demo app... Could it be the NSX-T 3.1 Limited Export edition? #vExpert #NSX

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Annemiek73Annemiek Meijer@Annemiek73·
16 Jan

Running man kan altijd! Ook tijdens #VVAL2021 @VriendvanAmstel #RunningMan #VVALS

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PowerCLIVMware PowerCLI@PowerCLI·
11 Jan

Do check out the SRS roadmap here. Feel free to influence the roadmap by submitting your requests. https://github.com/vmware/script-runtime-service-for-vsphere/projects/2 https://twitter.com/PowerCLI/status/1337370157551796225

VMware PowerCLI@PowerCLI

Introduction to Script Runtime Service (SRS) for vSphere https://blogs.vmware.com/PowerCLI/2020/12/introduction-to-script-runtime-service-srs-for-vsphere.html

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jeroen_burenJeroen Buren@jeroen_buren·
7 Jan

New blogpost about Script Runtime Service for vSphere.
https://configmgr.nl/2021/01/07/testing-script-runtime-service-for-vsphere-part-1/

#VMware #vSphere #SRS #PowerCLI

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